TWI438559B - Shutter device and shutter blade - Google Patents

Description

Shutter device and shutter blade

The present invention relates to a shutter device and a shutter blade, and more particularly to a shutter device and a shutter blade for a camera.

The camera shutter is a time control mechanism that allows the photosensitive element to obtain a suitable amount of exposure. In the early days of camera development, due to the low sensitivity of the photosensitive material and the long exposure time required, the lens cover was mounted and removed to control the exposure time. In recent years, as the sensitivity and shooting requirements of photosensitive materials have increased, the requirements for camera shutter speed have also increased.

Steel and other metal alloys are generally used in the prior art as materials for the shutter blades. However, although steel and other metal alloys can meet the strength requirements of camera shutters to a certain extent, camera shutters made of steel and other metal alloys usually have a large mass, which is not conducive to increasing the shutter speed.

In view of the above, it is necessary to provide a shutter device and a shutter blade that can increase the shutter speed.

The present invention provides a shutter device including a shutter blade structure, the shutter blade structure including at least one shutter blade, wherein the shutter blade includes at least two carbon nanotube composite structures, and each of the carbon nanotube composite structures Composed of a carbon nanotube structure and a polymer material, the carbon nanotube structure consists of a plurality of nanocarbons In the tube composition, the axial direction of the carbon nanotubes in the carbon nanotube structure is preferentially oriented in the same direction, and the axial extension direction of the carbon nanotubes in each nanocarbon tube composite structure is adjacent to the adjacent nano tube. In the carbon tube composite structure, the axial direction of the carbon nanotubes forms an intersection angle α, 0° < α ≦ 90°.

The present invention provides a shutter blade that can be applied to a photographing device for shielding or opening a shutter opening in the photographing device to achieve light sensing of a photosensitive member in the photographing device, wherein the shutter blade includes at least two a carbon nanotube composite structure, wherein each of the carbon nanotube composite structures is composed of a carbon nanotube structure and a polymer material, and the carbon nanotube structure is composed of a plurality of carbon nanotubes. The axial direction of the carbon nanotubes in the carbon nanotube structure is preferentially oriented in the same direction, and the axial extension direction of the carbon nanotubes in each nanocarbon tube composite structure and the adjacent carbon nanotube composite structure The axial extension direction of the carbon nanotubes forms an intersection angle α, 0° < α ≦ 90°.

Compared with the prior art, the shutter blade in the shutter device provided by the embodiment of the present invention is composed of at least two carbon nanotube composite structures, and the carbon nanotube composite structure is composed of a plurality of carbon nanotubes and a The composite of the polymer is prepared. Because the carbon nanotube itself has the characteristics of light weight and high mechanical strength, the shutter blade including the carbon nanotube can achieve greater strength under a small quality, and thus is applied. When various photographic devices are used, it is advantageous to increase the shutter speed.

100‧‧‧Shutter device

10‧‧‧Shutter substrate

12‧‧‧Shutter blade structure

14‧‧‧ Connection unit

16‧‧‧First drive unit

18‧‧‧Second drive unit

102‧‧‧Ontology

104‧‧‧Shutter opening

122‧‧‧First Shutter Blade Set

124‧‧‧Second shutter blade set

142‧‧‧First main arm

144‧‧‧First jib

146‧‧‧second main arm

148‧‧‧second jib

143‧‧‧Rotary axis

20;30;40;50;60‧‧·Shutter blades

22;622‧‧‧Nano carbon tube film

32‧‧‧ polymer coating

42; 52‧‧‧Nano carbon pipeline

54;624‧‧‧ polymer

62‧‧‧Nano Carbon Tube Composite Structure

FIG. 1 is a schematic structural view of a shutter device according to a first embodiment of the present invention.

2 is a cross-sectional structural view showing a shutter blade in a shutter device according to a first embodiment of the present invention.

3 is a SEM photograph of a carbon nanotube film taken by a shutter blade in a shutter device according to a first embodiment of the present invention.

4 is a SEM photograph of a carbon nanotube rolled film used in a shutter blade in a shutter device according to a first embodiment of the present invention.

Fig. 5 is a SEM photograph of a carbon nanotube flocculation film used in a shutter blade in a shutter device according to a first embodiment of the present invention.

FIG. 6 is a cross-sectional structural view of a shutter blade in a shutter device according to a second embodiment of the present invention.

FIG. 7 is a cross-sectional structural view showing a shutter blade in a shutter device according to a third embodiment of the present invention.

Figure 8 is a SEM photograph of a twisted nanocarbon line used in a shutter blade in a shutter device according to a third embodiment of the present invention.

9 is a SEM photograph of a non-twisted nanocarbon line used in a shutter blade in a shutter device according to a third embodiment of the present invention.

FIG. 10 is a cross-sectional structural view showing a shutter blade in a shutter device according to a fourth embodiment of the present invention.

FIG. 11 is a cross-sectional structural view showing a shutter blade in a shutter device according to a fifth embodiment of the present invention.

The shutter device and the shutter blade provided by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 and FIG. 2, a first embodiment of the present invention provides a shutter device 100. The shutter device 100 is for controlling the time when an external light enters the inside of a photographing device and is irradiated to the photosensitive member of the photographing device. When the shutter device 100 is turned on, the external light may be irradiated to the photosensitive element, and when the shutter device 100 is closed, the shutter device 100 may block the external light from being irradiated to the photosensitive element.

The shutter device 100 includes a shutter substrate 10 , a connecting unit 14 , a first driving unit 16 , a second driving unit 18 , and a shutter blade structure 12 .

The shutter substrate 10 is for supporting the shutter blade structure 12, the connecting unit 14, the first driving unit 16, and the second driving unit 18. The shutter substrate 10 includes a body 102 having a shutter opening 104.

The body 102 is a flat plate that is substantially parallel to the photosensitive elements of the photographic device.

The shutter opening 104 is disposed at a central position of the body 102 and penetrates the body 102. When the shutter device 100 is turned on, external light can be radiated from the shutter opening 104 to the photosensitive member. When the shutter device 100 is closed, the shutter blade structure 12 blocks the shutter opening 104 to block the external light from being incident on the photosensitive element. The shape of the shutter opening 104 can be prepared according to actual requirements; the shape of the shutter opening 104 is selected from a square, a rectangle, a circle or other polygons. The shutter opening 104 has a rectangular shape in this embodiment.

The first driving unit 16 and the second driving unit 18 are disposed on the same side of the body 102. The first driving unit 16 and the second driving unit 18 are rotatably connected to the connecting unit 14 for driving the shutter blade structure 12 to rotate clockwise or counterclockwise.

The connecting unit 14 is used to connect the shutter blade structure 12 with the body 102. The connecting unit 14 includes a first main arm 142, a first auxiliary arm 144, and a second main arm 146. a second auxiliary arm 148 and a plurality of rotating shafts 143. The first main arm 142 is connected to the body 102 through the first driving unit 16 . The second main arm 146 is connected to the body 102 through the second driving unit 18 . The first sub-arm 144 and the second sub-arm 148 are respectively connected to the body 102 via a rotating shaft 143. The first main arm 142 and the first sub-arm 144 can be rotated clockwise or counterclockwise around the respective rotating shaft 143 by the second driving unit 16. The second main arm 146 and the second sub-arm 148 can be rotated clockwise or counterclockwise around the respective rotating shaft 143 by the second driving unit 18.

The shutter blade structure 12 is used to shield or open the shutter opening 104 to achieve sensitization of the photosensitive element. The shutter blade structure 12 includes a first shutter blade set 122 and a second shutter blade set 124. The first shutter blade set 122 and the second shutter blade set 124 each include at least one shutter blade 20. The shape and number of the shutter blades 20 in the first shutter blade group 122 and the second shutter blade group 124 are not limited. In this embodiment, the first shutter blade group 122 and the second shutter blade group 124 each include four shutter blades 20. The first shutter blade group 122 is connected to the first main arm 142 and the first sub-arm 144, and can be linearly driven by the driving of the first driving unit 16, thereby achieving shielding or opening. Shutter opening 104. The second shutter blade group 124 is connected to the second main arm 146 and the second sub-arm 148, and can be linearly driven by the driving of the second driving unit 18, thereby achieving shielding or opening. Shutter opening 104.

When the shutter device 100 is in operation, the second main arm 146 and the second sub-arm 148 can be rotated in the clockwise direction around the rotating shaft 143 under the driving of the second driving unit 18, and are driven. The four shutter blades 20 of the second shutter blade group 124 are linearly moved to open the shutter opening 104; after the exposure for a predetermined time, the first The main arm 142 and the first sub-arm 144 are rotated in the clockwise direction around the rotating shaft 143 under the driving of the first driving unit 16, and drive the first shutter blade group 122 to linearly move the The four shutter blades 20 in the first shutter blade group 122 shield the shutter opening 104, thereby ending the exposure.

It can be understood that the structure and the manner of action of the shutter blade 20 in the shutter device 100 are not limited, and other previous structures and modes of operation may be adopted, as long as the shutter blade 20 can be opened or shielded under the driving of the driving device. The shutter opening 104 thus achieves exposure of the photosensitive member.

The shape of the shutter blade 20 can be prepared as needed. The shutter blade 20 has a thickness of from 1 micrometer to 200 micrometers, preferably from 5 micrometers to 20 micrometers. The light transmittance of the shutter blade 20 to visible light is approximately 1% or less. The structure, shape and material of the shutter blade 20 are substantially the same. Each shutter blade 20 includes a plurality of carbon nanotubes. Preferably, the shutter blade 20 is composed of a plurality of carbon nanotubes. The plurality of carbon nanotubes may be disordered or ordered, and the plurality of carbon nanotubes are closely connected by van der Waals force. Macroscopically, the shutter blade 20 is a carbon nanotube structure having a planar structure. Microscopically, the carbon nanotube structure is formed by a plurality of carbon nanotubes connected to each other by van der Waals force, and the plurality of carbon nanotubes may be in the same plane or in different planes. Preferably, the plurality of carbon nanotubes in the shutter blade 20 are substantially parallel to the surface of the shutter blade 20. The carbon nanotube structure is a self-supporting structure. The so-called "self-supporting" means that the carbon nanotube structure can maintain its own specific shape without being disposed on a surface of a substrate. Since the self-supporting carbon nanotube structure includes a large number of carbon nanotubes attracted to each other by van der Waals force, the carbon nanotube structure has a specific shape to form a self-supporting structure. Preferably, the shutter blade 20 is a pure structure composed of a plurality of carbon nanotubes. Nano in the shutter blade 20 The carbon tube does not need to be acidified or otherwise functionalized, and does not contain other functional groups such as carboxyl groups. The carbon nanotube structure in the shutter blade 20 is a pure carbon nanotube structure. In this embodiment, the shutter blade 20 is a sheet-shaped self-supporting structure composed of a plurality of carbon nanotubes. Adjacent carbon nanotubes in the plurality of carbon nanotubes are closely connected by van der Waals force.

The carbon nanotube structure may include one or more layers of carbon nanotube film as long as the thickness of the carbon nanotube structure is between 1 micrometer and 200 micrometers and the light transmittance is less than or equal to 1%. When the carbon nanotube structure comprises a plurality of layers of carbon nanotube film, the plurality of layers of carbon nanotube film are stacked, and adjacent carbon nanotube films are closely connected by van der Waals force.

Referring to FIG. 2, the shutter blade 20 provided in this embodiment is formed by laminating 50 layers of carbon nanotube film 22 having a thickness of approximately 0.1 micrometer to form a carbon nanotube structure having a thickness of approximately 5 micrometers. The carbon nanotube structure is substantially opaque. The shutter blade 20 is a sheet-like structure having a certain strength.

Referring to FIG. 3, the carbon nanotube film is a self-supporting structure composed of a plurality of carbon nanotubes. The plurality of carbon nanotubes are arranged in a preferred orientation along the length direction of the carbon nanotube film. The preferred orientation means that the overall extension direction of most of the carbon nanotubes in the carbon nanotube film is substantially in the same direction. Moreover, the overall extension direction of the majority of the carbon nanotubes is substantially parallel to the surface of the carbon nanotube film. Further, most of the carbon nanotubes in the carbon nanotube film are connected end to end by van der Waals force. Specifically, each of the majority of the carbon nanotubes extending substantially in the same direction in the carbon nanotube film is connected to the carbon nanotubes adjacent in the extending direction by Van der Waals (Van Der Waals attractive force) is connected end to end. Of course, there are a few carbon nanotubes in the carbon nanotube film that deviate from the extending direction, and these carbon nanotubes It does not significantly affect the overall orientation of most of the carbon nanotubes in the carbon nanotube film. The self-supporting carbon nanotube film does not require a large-area carrier support, and as long as the support force is provided on both sides, it can be suspended in the whole to maintain its own film state, that is, the carbon nanotube film is placed (or When fixed on two supports arranged at a certain distance, the carbon nanotube film located between the two supports can be suspended to maintain its own film state. The self-supporting is mainly achieved by the presence of continuous carbon nanotubes extending through the ends of the van der Waals force through the carbon nanotube film. Specifically, the plurality of carbon nanotubes extending substantially in the same direction in the carbon nanotube film are not absolutely linear and may be appropriately bent; or are not completely aligned in the extending direction, and may be appropriately deviated from the extending direction. . Therefore, it is not possible to exclude partial contact between the carbon nanotubes juxtaposed in the majority of the carbon nanotubes extending substantially in the same direction. Specifically, the carbon nanotube film comprises a plurality of continuous and aligned carbon nanotube segments. The plurality of carbon nanotube segments are connected end to end by van der Waals force. Each carbon nanotube segment consists of a plurality of mutually parallel carbon nanotubes. The carbon nanotube segments have any length, thickness, uniformity, and shape.

In the shutter blade 20, the carbon nanotube film 22 is laminated on each other in the structure of the shutter blade 20, and adjacent carbon nanotube films 22 are closely connected by van der Waals force. Most of the carbon nanotubes in the carbon nanotube drawn film 22 extend in the preferred direction in the same direction. Each of the carbon nanotubes in the majority of the carbon nanotubes is connected end to end with a vanadium force in the axial direction. Each of the carbon nanotubes in the majority of the carbon nanotubes is closely connected to the adjacent carbon nanotubes by van der Waals force. When the shutter blade 20 is composed of a plurality of layers of carbon nanotube film laminated, preferably, at least two layers of carbon nanotube film are formed in the axial direction of the carbon nanotube to form an intersection angle α,0. °<α≦90°. More preferably, the axial extension direction and phase of most of the carbon nanotubes in each of the carbon nanotube films 22 in the shutter blade 20 The axial extension of most of the carbon nanotubes in the adjacent carbon nanotube film 22 forms an angle of intersection α, 0° < α ≦ 90°. In this embodiment, the crossing angle is 90°.

It can be understood that since the carbon nanotube has good light absorption performance, the shutter blade 20 can have better light absorption performance in a thin thickness range. Specifically, when the thickness of the shutter blade 20 is approximately 1 micrometer to 200 micrometers, the purpose of making the light transmittance of the shutter blade 20 to visible light substantially less than or equal to 1% can be achieved. Moreover, due to the light absorbing effect of the carbon nanotubes, when the shutter blade covers the shutter opening 104, the reflection of the shutter blade 20 can be reduced, thereby achieving a high quality photographing effect. In addition, since the carbon nanotube itself has strong mechanical properties, its tensile strength is 100 times that of the steel, and the elastic modulus is equivalent to the elastic modulus of the diamond, so that the thickness of the shutter blade 20 is remarkably lowered. The mechanical properties of conventional shutter blades can still be achieved. Since the carbon nanotubes are also characterized by light weight and the like, and the density is about one sixth of the steel, the quality of the reduced thickness shutter blade 20 is significantly reduced, so that the shutter blade 20 can be reduced. The driving force and braking force required to shield or open the shutter opening 104, thereby reducing the battery loss of the camera. Finally, the extending direction of most of the carbon nanotubes in each of the carbon nanotube films in the shutter blade 20 forms a direction of extension of most of the carbon nanotubes in the adjacent carbon nanotube film. The 90° crossing angle causes the shutter blade 20 to have a large mechanical strength.

The method for preparing the shutter blade 20 specifically includes: providing a plurality of carbon nanotube film; laying the plurality of carbon nanotube films to form a carbon nanotube structure; and forming the carbon nanotube structure After being treated with a volatile organic solvent, the adjacent carbon nanotubes are tightly bonded to each other; finally, the treated carbon nanotube structure is subjected to press working to form the shutter blade 20.

It can be understood that the carbon nanotube structure is not limited to being composed of a carbon nanotube film, and may be composed of a carbon nanotube film, a carbon nanotube film or at least two of the three carbon nanotube films. A layered structure.

The carbon nanotube rolled film is a self-supporting carbon nanotube film obtained by rolling a carbon nanotube array. The carbon nanotube rolled film comprises uniformly distributed carbon nanotubes, and the carbon nanotubes are arranged in the same direction or in different directions. Most of the carbon nanotubes in the carbon nanotube rolled film are substantially parallel to the surface of the carbon nanotube rolled film. The carbon nanotubes in the carbon nanotube rolled film partially overlap each other and are attracted to each other by van der Waals force, and the carbon nanotube film has good flexibility and can be bent and folded into Any shape without breaking. Moreover, since the carbon nanotubes in the carbon nanotube rolled film are attracted to each other by van der Waals force, the carbon nanotube film is a self-supporting structure. The carbon nanotubes in the carbon nanotube rolled film form an angle β with the surface of the growth substrate forming the carbon nanotube array, wherein β is greater than or equal to 0 degrees and less than or equal to 15 degrees, and the angle β is applied The pressure on the carbon nanotube array is related. The larger the pressure, the smaller the angle. Preferably, the carbon nanotubes in the carbon nanotube rolled film are aligned parallel to the growth substrate. The carbon nanotube rolled film is obtained by rolling a carbon nanotube array, and the carbon nanotubes in the carbon nanotube rolled film have different arrangement forms according to different rolling methods. Specifically, the carbon nanotubes can be arranged in disorder; when crushed in different directions, the carbon nanotubes are arranged in different directions; referring to FIG. 4, when rolling in the same direction, the carbon nanotubes are along a The orientation is preferred and the orientation is preferred. The length of the carbon nanotubes in the carbon nanotube rolled film is greater than 50 microns. The area of the carbon nanotube rolled film is substantially the same as the size of the carbon nanotube array. The thickness of the carbon nanotube film is related to the height of the carbon nanotube array and the pressure of the rolling, and may be between 0.5 nm and 100 μm. It can be understood that the higher the height of the carbon nanotube array and the smaller the applied pressure, the greater the thickness of the prepared carbon nanotube rolled film. On the contrary, the smaller the height of the carbon nanotube array and the higher the applied pressure, the smaller the thickness of the prepared carbon nanotube rolled film.

It can be understood that when the thickness of the carbon nanotube film is large, the shutter blade 20 can be composed of a single-layer carbon nanotube rolled film, and most of the nano-carbon nanotubes are laminated. The carbon nanotubes overlap each other and extend substantially along the surface of the shutter blade 20. Each of the carbon nanotubes in the majority of the carbon nanotubes is closely connected to the adjacent carbon nanotubes by van der Waals force. When the thickness of the carbon nanotube film is small, the shutter blade 20 may be composed of a plurality of laminated carbon nanotube laminated films, and adjacent carbon nanotubes are passed between Dewali is closely linked. The arrangement direction of the carbon nanotubes in the shutter blade 20 depends on the arrangement direction of the carbon nanotubes in the carbon nanotube rolled film. Preferably, most of the carbon nanotubes in the carbon nanotube rolled film extend substantially in the same direction and are parallel to the surface of the carbon nanotube film, and each carbon tube is crushed. The axial extension direction of most of the carbon nanotubes in the lamination forms an intersection angle α with the axial extension direction of most of the carbon nanotubes in the adjacent carbon nanotube membrane, 0°<α≦90° .

Referring to FIG. 5, the carbon nanotube flocculation membrane is a self-supporting carbon nanotube membrane obtained by flocculation treatment of a carbon nanotube raw material, such as a super-aligned array. The carbon nanotube flocculation membrane comprises carbon nanotubes which are intertwined and uniformly distributed. The carbon nanotubes have a length greater than 10 microns, preferably from 200 microns to 900 microns, such that the carbon nanotubes are intertwined with each other. The carbon nanotubes are attracted to each other by van der Waals forces to form a network structure. Since the large number of carbon nanotubes in the self-supporting carbon nanotube flocculation membrane are attracted to each other and entangled by van der Waals force, the carbon nanotube flocculation membrane has a specific shape to form a self-supporting structure. . The carbon nanotube flocculation membrane is isotropic. The carbon nanotubes in the carbon nanotube flocculation membrane are uniformly distributed and randomly arranged The area and thickness of the carbon nanotube flocculation membrane are not limited, and the thickness is approximately between 0.5 nm and 100 μm.

It can be understood that when the thickness of the carbon nanotube film is large, the carbon nanotube structure in the shutter blade 20 can be composed of a single-layer carbon nanotube floc film, and adjacent in the shutter blade 20 The carbon nanotubes are attracted to each other by Van der Waals forces to form a network structure. When the thickness of the carbon nanotube film is small, the shutter blade 20 may be composed of a plurality of stacked carbon nanotube film, and the adjacent carbon nanotube film is passed between Dewali is closely linked.

A second embodiment of the present invention provides a shutter device which is substantially the same as the shutter device 100 provided by the first embodiment of the present invention. The main difference is that, referring to FIG. 6, the shutter blade of the shutter device in this embodiment 30 further includes a polymer coating 32 applied to the surface of the shutter blade 20 of the first embodiment, the polymer coating 32 having a thickness of from 1 micron to 10 microns. The material of the polymer coating 32 is selected from the group consisting of fluoroolefins, polyimines, polyphenylene sulfides, and polymeric materials of any combination thereof. In this embodiment, the polymer coating 32 is a polytetrafluoroethylene material. The polytetrafluoroethylene material has a thickness of 1 micron.

It can be understood that the surface of the shutter blade 20 is coated with a polymer coating 32 to have a lubricating effect, which can reduce the friction between adjacent blades when the shutter blade is opened and closed in the longitudinal direction, thereby improving the shutter speed and wear resistance. Sex.

The method for preparing the shutter blade 30 in the embodiment is based on the first embodiment of the present invention to form the shutter blade 20, and further uniformly coating a surface of the shutter blade 20 with a lubricating polytetrafluoroethylene. Vinyl coating.

A third embodiment of the present invention provides a shutter device, which is the first of the present invention The shutter device 100 provided by the embodiment is basically the same, and the main difference is that, referring to FIG. 7, the carbon nanotube structure adopted by the shutter blade 40 of the shutter device in the embodiment is composed of a plurality of stacked carbon nanotube layers. In composition, the carbon nanotube layer includes a plurality of nano carbon lines 42 arranged in parallel and side by side. The shutter blade 40 has a thickness of 30 micrometers, and the shutter blade 40 is a sheet-like structure having a certain strength.

In the structure of the shutter blade 40, the nano carbon line 42 in each carbon nanotube layer is in close contact with the adjacent nano carbon line 42 by van der Waals force, and the adjacent carbon nanotube layer Tightly connected by Van der Waals. Preferably, the nanocarbon tubes 42 in at least two layers of carbon nanotubes are arranged to form an intersection angle α, 0° < α ≦ 90°. More preferably, the carbon nanotubes in any two adjacent carbon nanotube layers are arranged to form an intersection angle α, 0° < α ≦ 90°. In this embodiment, the carbon nanotubes in the adjacent carbon nanotube layers are arranged to form a 90° crossing angle. It can be understood that since the nano carbon line 42 in the adjacent two carbon nanotube layers in the shutter blade 40 are disposed at the intersection, the shutter blade 40 can be prevented from being cracked in various directions, and the The shutter blade 40 has a certain strength in any direction parallel to its surface.

Referring to FIG. 8, the nanocarbon line 42 can employ a twisted nanocarbon line. Most of the carbon nanotubes in the twisted nanocarbon pipeline extend substantially in the same axial direction, and each of the carbon nanotubes in the majority of the carbon nanotubes is adjacent to the axial extension direction The carbon nanotubes are connected end to end by van der Waals force, and each of the carbon nanotubes in the majority of the carbon nanotubes is closely connected to the adjacent carbon nanotubes by van der Waals force. The twisted nanocarbon line is obtained by twisting both ends of the carbon nanotube film in opposite directions by a mechanical force. The length of the twisted nanocarbon line is not limited.

The method for preparing the shutter blade 40 includes: providing a plurality of twisted nano carbon pipelines; and forming the plurality of twisted nanocarbon pipelines side by side in the same direction to form a a carbon nanotube layer, and then stacking a plurality of twisted nanocarbon pipelines on the surface of the carbon nanotube layer in another direction, thus repeatedly forming a carbon nanotube structure; finally, the obtained nanocarbon The tube structure is stamped to form the shutter blade 40.

It can be understood that the carbon nanotube line in the carbon nanotube structure is not limited to the twisted nano carbon line, and may also be selected from the non-twisted nano carbon line.

Referring to FIG. 9, the non-twisted nano carbon pipeline is obtained by treating a carbon nanotube film by an organic solvent. Specifically, the organic solvent is used to impregnate the entire surface of the carbon nanotube film, and under the action of the surface tension generated by the volatilization of the volatile organic solvent, a plurality of nano carbons parallel to each other in the carbon nanotube film are drawn. The tube is tightly bonded by van der Waals force, thereby shrinking the carbon nanotube film into a non-twisted nano carbon line. The organic solvent is a volatile organic solvent such as ethanol, methanol, acetone, dichloroethane or chloroform. The majority of the carbon nanotubes in the non-twisted nanocarbon pipeline extend substantially in the same direction, and each of the carbon nanotubes and the axially extending carbon nanotubes pass through the van der Waals force. Connected. Specifically, the non-twisted nanocarbon pipeline includes a plurality of carbon nanotube segments, and the plurality of carbon nanotube segments are connected end to end by van der Waals force, and each of the carbon nanotube segments includes a plurality of parallel and pass through each other Dewali is a tightly coupled carbon nanotube. The carbon nanotube segments have any length, thickness, uniformity, and shape. The length of the non-twisted nanocarbon line is not limited.

It can be understood that the shutter blade 40 can further include a polymer coating applied to the surface of the shutter blade 40, the polymer coating having a thickness of 1 micron to 10 micrometers. The material of the polymer coating is selected from the group consisting of fluoroolefins, polyimines, polyphenylene sulfides, and any combination thereof.

A fourth embodiment of the present invention provides a shutter device, which is substantially the same as the shutter device provided by the first embodiment of the present invention, and the main difference is that, please refer to the figure. 10. The shutter blade 50 in the shutter device of this embodiment is combined with a polymer 54 by a carbon nanotube structure to form a carbon nanotube composite structure. The carbon nanotube structure may include the carbon nanotube film in the first embodiment of the present invention, and may also include the nano carbon pipeline in the third embodiment of the present invention, and may also use a carbon nanotube film or a naphthalene film. Rice carbon pipeline. In the shutter blade 50, the carbon nanotube structure is compounded inside the polymer 54. There may be a certain gap between the carbon nanotubes in the carbon nanotube structure or between the nanocarbon pipelines, and the polymer 54 material may be coated on the surface of the carbon nanotube structure and filled in a gap in the carbon nanotube structure. It will be appreciated that the thickness of the shutter blade 50 can be determined by the carbon nanotube structure and the thickness of the polymer 54. The polymer 54 is a thermosetting material or a thermoplastic material such as an epoxy resin, a polyolefin, an acrylic resin, a polyamide, a polyurethane (PU), a polycarbonate (PC), a polyacetal resin (POM), a polyparaphenylene. Ethylene dicarboxylate (PET), polymethyl methacrylate (PMMA) or oxime resin. In the shutter blade 50, the mass percentage of the carbon nanotubes is 5% to 80%, and preferably, the mass percentage of the carbon nanotubes is 10% to 30%. It can be understood that when the content of the carbon nanotubes is low, the synergy between the polymer material and the carbon nanotubes can be exerted to improve the performance of the shutter blade 50.

In this embodiment, the carbon nanotube structure in the shutter blade 50 is the same as the structure of the carbon nanotube in the third embodiment of the present invention, and the carbon nanotube structure includes a plurality of stacked carbon nanotube layers. The carbon nanotube layer includes a plurality of nanocarbon lines 52 arranged side by side in parallel with each other. The carbon nanotube structure is compounded inside the polymer 54. The polymer 54 is a polyethylene terephthalate material. The shutter blade 50 has a thickness of about 40 microns, and the shutter blade 50 is substantially opaque. The shutter blade 50 has a rectangular sheet-like structure. The carbon nanotubes have a mass percentage of 20%.

It can be understood that the shutter blade 50 can further include a polymer coating applied to the surface of the shutter blade 50, the polymer coating having a thickness of 1 micron to 10 micrometers. The material of the polymer coating is the same as that of the polymer coating in the second embodiment of the present invention.

Since the shutter blade 50 is composed of a plurality of carbon nanotubes and a polymer, the synergy between the polymer and the carbon nanotubes can be exerted to improve the performance of the shutter device.

The shutter blade 50 is formed by dipping the shutter blade 40 into a polymer monomer solution, a prepolymer solution or a polymer melt, or spraying or coating the polymer-containing solution onto the shutter blade 40 structure. The polymer solution can be infiltrated into the carbon nanotube structure, and the shutter blade 40 is compounded with the polymer to obtain a carbon nanotube composite structure; finally, the obtained carbon nanotube composite structure is prepared by pressing. Made.

A fifth embodiment of the present invention provides a shutter device which is substantially the same as the shutter device provided by the first embodiment of the present invention. The main difference is that, referring to FIG. 11, the shutter blade 60 of the shutter device in the embodiment is referred to. The method comprises the steps of stacking at least two layers of carbon nanotube composite structures. The carbon nanotube composite structure is formed by compounding a carbon nanotube structure with a polymer material. It can be understood that the carbon nanotube structure may be selected from the carbon nanotube structure in the first embodiment of the present invention, and may also be selected from the carbon nanotube structure in the third embodiment of the present invention. The polymeric material may be selected from the polymeric materials of the fourth embodiment of the invention.

In the embodiment of the present invention, the shutter blade 60 includes a two-layered sheet-shaped carbon nanotube composite structure 62 stacked in a stack, wherein the carbon nanotube composite structure 62 is composed of a carbon nanotube structure and a polymer 624. Compounded. The carbon nanotube structure includes a plurality of edges The carbon nanotube film 622 is stacked in the same direction. The carbon nanotube film 622 is the same as the carbon nanotube film 22 in the first embodiment of the present invention. That is, the axial directions of most of the carbon nanotubes in each of the carbon nanotube composite structures 62 extend substantially in the same direction. The axial extension of most of the carbon nanotubes in each of the carbon nanotube composite structures 62 forms an angle of intersection with the axial extension of most of the carbon nanotubes in the adjacent carbon nanotube composite structure 62. α, 0° < α ≦ 90 °. In this embodiment, the crossing angle is 90°. The thickness of the shutter blade 60 is 30 micrometers, which enables the shutter blade 60 to have good light shielding properties. The shutter blade 60 is a rectangular sheet-like structure having a certain strength. The polymer 624 is an epoxy material. The carbon nanotubes have a mass percentage of 30%.

It can be understood that when the carbon nanotube structure includes the nano carbon pipeline in the third embodiment of the present invention, the nano carbon pipelines are parallel to each other and arranged side by side in the carbon nanotube structure, and adjacent The nano carbon lines are closely connected by van der Waals force. The extending direction of the nanocarbon pipeline in each nanocarbon tube composite structure forms an intersection angle α with the extending direction of the nanocarbon pipeline in the adjacent carbon nanotube composite layer structure, 0°<α≦90 °. Preferably, the angle of intersection is 90°.

It will be appreciated that the shutter blade 60 may further comprise a polymer coating applied to the surface of the shutter blade 60, the polymer coating having a thickness of from 1 micron to 10 microns. The material of the polymer coating is the same as that of the polymer coating in the second embodiment of the present invention.

The method for preparing the shutter blade 60 includes: providing at least two layers of carbon nanotube composite structures by laminating a plurality of carbon nanotube films in the same direction to form a nanometer. a carbon tube structure, the immersion of the carbon nanotube structure in a solution or a molten material of an epoxy resin material, or dissolution of an epoxy resin material Spraying or smearing the liquid or molten metal on the carbon nanotube structure to prepare a composite of the carbon nanotube structure and the epoxy resin; stacking the at least two layers of carbon nanotube composite structures, and The axial extension direction of most of the carbon nanotubes in each carbon nanotube composite structure forms a 90° crossing angle with the axial extension direction of the carbon nanotubes in the adjacent carbon nanotube composite structure, And forming a laminate by hot press processing; finally, the laminate is subjected to press working to form the shutter blade 60.

The shutter blade provided by the embodiment of the present invention has the following advantages: First, the shutter blade is basically composed of a carbon nanotube, and the plurality of carbon nanotubes can be connected by a van der Waals force to form a self-supporting structure, so the shutter blade The thickness of the shutter blade can be significantly reduced, so that the shutter blade has a light weight characteristic, is convenient to be applied to various photographic apparatuses, and reduces the driving force and braking force of the shutter blade in shielding or opening the shutter opening, thereby reducing the camera. Battery loss. Secondly, since the carbon nanotube structure itself has strong mechanical properties, its tensile strength is 100 times that of the steel, and the elastic modulus is equivalent to the elastic modulus of the diamond. Therefore, the shutter blade has high mechanical properties and resistance. Persistence. Again, since the carbon nanotube itself is a good black body structure, when the carbon nanotube is applied to the shutter blade, not only the shutter opening can be effectively blocked, but also the reflection of the shutter blade can be reduced, thereby achieving High quality shooting results. Further, the shutter blade is formed by combining a plurality of carbon nanotubes with a polymer material, thereby exerting a synergistic effect between the polymer and the carbon nanotube to improve the performance of the shutter device. Finally, coating the surface of the shutter blade with a layer of lubricating polymer coating can also reduce the friction between adjacent shutter blades when the shutter blade acts to shield or open the shutter opening, thereby improving Shutter speed and wear resistance.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. please. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

60‧‧‧Shutter blades

62‧‧‧Nano Carbon Tube Composite Structure

622‧‧‧Nano carbon tube film

624‧‧‧ polymer

Claims (19)

A shutter device comprising a shutter blade structure, the shutter blade structure comprising at least one shutter blade, wherein the shutter blade comprises at least two carbon nanotube composite structures, and each of the carbon nanotube composite structures is composed of A carbon nanotube structure and a polymer material are composited, the nano carbon tube structure is composed of a plurality of carbon nanotubes, and the mass percentage of the carbon nanotubes in each nano carbon tube composite structure 10%~30%, the axial direction of the carbon nanotubes in the carbon nanotube structure is preferentially oriented in the same direction, and the axial direction and phase of the carbon nanotubes in each nanocarbon tube composite structure In the adjacent carbon nanotube composite structure, the axial extension direction of the carbon nanotubes forms a crossing angle α, 0° < α ≦ 90 °. The shutter device of claim 1, wherein the carbon nanotube structure is a self-supporting structure composed of a plurality of carbon nanotubes. The shutter device of claim 1, wherein the carbon nanotube structure is compounded inside the polymer material. The shutter device of claim 1, wherein the polymer material is coated on a surface of the carbon nanotube structure and filled in a gap between a plurality of carbon nanotubes in the carbon nanotube structure. The shutter device of claim 1, wherein each of the carbon nanotube structures comprises at least one carbon nanotube film, the carbon nanotube film comprising a plurality of carbon nanotubes, the plurality of carbon nanotubes The majority of the carbon nanotubes in the axial direction extend substantially in the same direction. The shutter device of claim 5, wherein each of the carbon nanotube structures comprises a plurality of carbon nanotube membranes, and adjacent carbon nanotube membranes are closely connected by van der Waals force. The shutter device of claim 5 or 6, wherein the carbon nanotube film comprises a plurality of carbon nanotubes, and most of the plurality of carbon nanotubes extend in the axial direction The adjacent carbon nanotubes are connected end to end by van der Waals force. The shutter device of claim 1, wherein the carbon nanotube structure comprises a plurality of nanocarbon lines arranged in parallel and side by side. The shutter device of claim 8, wherein adjacent nanocarbon lines are closely connected by van der Waals force. The shutter device of claim 8, wherein the extending direction of the nanocarbon pipeline in each of the carbon nanotube composite structures and the extending direction of the nanocarbon pipeline in the adjacent carbon nanotube composite structure A crossing angle α is formed, 0° < α ≦ 90°. The shutter device of claim 1, wherein the shutter blade has a thickness of 1 μm to 200 μm. The shutter device of claim 11, wherein the shutter blade has a thickness of 5 μm to 50 μm. The shutter device of claim 1, wherein the polymer is a thermosetting material or a thermoplastic material. The shutter device of claim 13, wherein the polymer is selected from the group consisting of epoxy resin, polyolefin, acrylic resin, polyamide, polyurethane, polycarbonate, polyacetal resin, polyethylene terephthalate , polymethyl methacrylate and oxime resin. The shutter device of claim 1, wherein the shutter blade further comprises a polymer coating applied to a surface of the shutter blade. The shutter device of claim 15, wherein the polymer coating has a thickness of from 1 micrometer to 10 micrometers. The shutter device of claim 15, wherein the material of the polymer coating is selected from the group consisting of a fluorine-containing polyolefin, a polyimide, a polyphenylene sulfide, and any combination thereof. The shutter device of claim 1, wherein the shutter device further comprises a shutter substrate, a connecting unit, and a driving unit, wherein the shutter substrate is configured to support the shutter blade structure, the driving unit, and the connecting unit The connecting unit is configured to connect the shutter blade The structure and the shutter substrate are used to drive the shutter blade structure to rotate clockwise or counterclockwise. A shutter blade applicable to a photographing device for shielding or opening a shutter opening in the photographing device, thereby realizing light sensing of a photosensitive member in the photographing device, wherein the shutter blade includes at least two a carbon nanotube composite structure, wherein each of the carbon nanotube composite structures is composed of a carbon nanotube structure and a polymer material, and the carbon nanotube structure is composed of a plurality of carbon nanotubes, and the nanometer The mass percentage of the carbon tube in each nano carbon tube composite structure is 10% to 30%, and the axial direction of the carbon nanotube in the carbon nanotube structure extends in the same direction. The axial extension direction of the carbon nanotubes in the carbon nanotube composite structure forms an intersection angle α with the axial extension direction of the carbon nanotubes in the adjacent carbon nanotube composite structure, 0° < α ≦ 90°.