TWM455137U - Luminous device - Google Patents

Description

Illuminating device

The present invention relates to a light-emitting device, and more particularly to a light-emitting device that uses a light guiding property of a fiber to transmit light.

Optical fiber is waterproof, high temperature resistant and non-destructive, and its good flexibility and flexibility make it widely used in advertising systems such as billboards, interior decoration, and escape equipment.

FIG. 1 and FIG. 2 are a side guide optical fiber 1 disclosed in the new patent No. M347579. The side guide optical fiber 1 includes a fiber body 11 extending along a length direction d and having a transparent cylindrical shape, along the length. The reflective strip 12 extends in the direction d and is embedded in the optical fiber body 11, and a refractive shell 13 surrounding the optical fiber body 11 and the reflective strip 12 and adjacent to the reflective strip 12. The optical fiber body 11 includes a surrounding bonding surface 111 and a light incident surface 112 connected to one end of the bonding surface 111. The light incident surface 112 allows light of an LED lamp 10 to be incident. The reflective strip 12 has a reflective surface 121 that is attached to the bonding surface 111 of the optical fiber body 11 and that reflects light passing through the light incident surface 112. The refracting shell 13 has a light exiting portion 131 that surrounds the fiber body 11 and corresponds to the reflecting surface 121 and emits light.

When the light is incident on the light incident surface 112 of the optical fiber body 11, the light is reflected by the reflective surface 121 of the reflective strip 12, and the light passes through the optical fiber body 11 and is emitted toward the light exit portion 131 of the refractive shell 13.

Although the side guiding optical fiber 1 can achieve the purpose of guiding light, because some applications require a long length of optical fiber, the LED light 10 is located in the optical fiber. One side of the light incident surface 112 of the body 11 is required to transmit a long distance from the light incident surface 112 to the other side in the longitudinal direction d of the optical fiber body 11, resulting in the middle section of the side guiding optical fiber 1. At the end or the end, the brightness is lowered due to the loss of light energy, resulting in uneven brightness of the entire side guide fiber 1. Therefore, in order to satisfy various applications, the structural design of the side guide optical fiber 1 is known to be improved.

Therefore, it is an object of the present invention to provide a light-emitting device capable of improving luminance and uniformity of light emission.

Therefore, the novel light emitting device comprises: a lamp holder, a light source module, and a light guiding module.

The socket extends along a length direction and defines a mounting slot. The light source module is installed in a mounting groove of the lamp holder. The light guiding module is disposed on the lamp holder, and includes a fiber body extending along the length direction, and a first reflective strip and a second reflective strip respectively embedded in the optical fiber body, the optical fiber body having a light-incident surface facing the light source module and for the light of the light source module to enter, and a light-emitting surface opposite to the light-incident surface and for emitting light, the light-emitting surface and the light-incident surface are along the length Extending in a direction, the first reflective strip is adjacent to the light exiting surface and can reflect light passing through the light incident surface, and the second reflective strip is adjacent to the light incident surface and can reflect the light reflected by the first reflective strip toward the light The direction of the light surface is reflected.

The effect of the present invention is that, by using the arrangement relationship between the first reflective strip and the second reflective strip, the light generated by the light source module can be uniformly and concentratedly reflected toward the light emitting surface of the optical fiber body, and the socket is matched. The light source mode Both the group and the light guiding module extend along the length direction, so that the length of the novel light emitting device can be designed to be any length, and even if the length is longer, a higher light brightness and light uniformity can be generated.

The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIGS. 3 to 5, a first preferred embodiment of the present illuminating device includes a lamp holder 2, a light source module 3, and a light guiding module 4.

The socket 2 is made of a flexible material and extends along a length direction z. The socket 2 includes a base wall 21 extending along the length direction z, and two bases respectively from the base wall 21 The side wall 22 extending in the direction of the light guiding module 4 in a long direction, the base wall 21 and the side walls 22 jointly define the mounting groove 23.

The light source module 3 is mounted in the mounting groove 23 of the socket 2, and includes a carrier plate 31 disposed on the base wall 21 of the socket 2 and extending along the length direction z, and a plurality of The LED lamps 32 are disposed on the carrier plate 31 at a distance from each other in the longitudinal direction z. In the present embodiment, the carrier plate 31 is made of a flexible material.

The light guide module 4 is disposed on the sidewalls 22 of the socket 2 and includes a fiber body 41 extending along the length direction z, and a first reflective strip 42 embedded in the fiber body 41. a second reflective strip 43 and a third reflective strip 44. The first reflective strip 42 and the second reflective strip 43 The third reflective strip 44 also extends along the length direction z.

The fiber body 41 has a rectangular cross section and is made of a flexible transparent plastic, and has a light incident surface 411 facing the light source module 3 and for the light of the LED lamps 32 to enter, and a contrast to The light-incident surface 411 is provided with a light-emitting surface 412 for emitting light, and the light-emitting surface 412 and the light-incident surface 411 extend along the longitudinal direction z. Of course, in addition to the light emitted from the light exit surface 412, part of the light may be emitted from a surface connected between the light incident surface 411 and the light exit surface 412. In this embodiment, the material of the optical fiber body 41 may be selected from polystyrene (PS), polycarbonate (PC), and polymethyl methacrylate (PMMA). To shape.

The first reflective strip 42 is adjacent to the light-emitting surface 412 and has a substantially irregular pentagon cross section, and has a first reflective surface facing the light source module 4 and reflecting light passing through the light-incident surface 411. 421. Each of the first reflective surfaces 421 has a first side 422 that connects the other first reflective surface 421 and a second side 423 that is opposite the first side 422. Therefore, the first side 422 of the first reflecting surface 421 overlaps, and each of the first reflecting surfaces 421 extends obliquely from the first side 422 toward the second side 423 toward the light emitting surface 412.

The second reflective strip 43 is adjacent to the light incident surface 411 and is located on the left side of the optical fiber body 41. The second reflective strip 43 has a substantially trapezoidal cross section and has a second reflective surface 431 facing one of the first reflective surfaces 421. In this embodiment, the first reflective surface 421 facing the left side. The second reflecting surface 431 can reflect the light from the first reflecting surface 421 toward The direction of the light exit surface 412 is reflected.

The third reflective strip 44 is adjacent to the light incident surface 411 and is spaced apart from the second reflective strip 43 by a left-right spacing. The structure of the third reflective strip 44 is the same as that of the second reflective strip 43. The third reflective strip 44 has a substantially rectangular cross section and has a third reflective surface 441 facing the first reflective surface 421 on the right side. The third reflecting surface 441 can also reflect the light reflected by the first reflecting surface 421 toward the light emitting surface 412. In this embodiment, the reflective strips 42, 43, 44 are all made of an opaque PMMA material.

In the embodiment, the light of the LED lamps 32 is incident on the light incident surface 411 of the optical fiber body 41, and then projected onto the first reflective surfaces 421 of the first reflective strips 42 by the first The reflecting surface 421 reflects the light rays to the second reflecting surface 431 of the corresponding second reflective strip 43 and the third reflecting surface 441 of the third reflective strip 44, respectively. The second reflecting surface 431 and the third reflecting surface 441 further reflect the light toward the light emitting surface 412, thereby uniformly emitting light from the light emitting surface 412.

It is worth mentioning that the LED lamps 32 are arranged along the longitudinal direction z so that the light source is covered with a light source in the longitudinal direction z of the entire light-emitting device, so that the overall light output of the light-emitting device can be made uniform. In addition, since the first reflective strip 42 is opaque, the first reflective strip 42 has a reflective function on the one hand, and the first reflective strip 42 is spaced apart from the LEDs 32 on the other hand, so that the LEDs 32 are 32. The formed point light source can be shielded to prevent the local bright spots caused by the LED lamps 32 from forming a visual flaw, and the light is uniformly reflected and emitted outward.

In summary, the first reflective strip 42 and the second reflective strip 43 are utilized. The third reflective strip 44 reflects the light generated by the light source module 3 uniformly and concentratedly toward the light emitting surface 412 of the optical fiber body 41, so that the brightness and uniformity of the emitted light can be improved, and the lamp holder 2 and the light guide are added. The modules 4 all extend along the length direction z, and the LED lamps 32 matching the light source module 3 are also arranged along the length direction z. Therefore, the overall length of the novel light-emitting device can be maintained even longer. Light brightness and light uniformity.

Referring to Figures 6 and 7, a second preferred embodiment of the present illuminating device comprises: a lamp holder 2, a light source module 3, a light guiding module 4, a lamp cover 5, and a two-end cover 6 (Fig. Only one is shown in the middle). The structure of the light source module 3 and the light guiding module 4 is the same as that of the first preferred embodiment, and will not be described here. In addition, the light-emitting device of the present embodiment has a long straight tubular shape and is not flexible.

The socket 2 is made of a metal material that facilitates heat dissipation and extends along the length direction z. The lamp holder 2 includes a base wall 21 and two side walls 22 extending from the two long sides of the base wall 21 toward the light guide module 4, and the base wall 21 is remote from the light source module 3 A plurality of heat dissipation walls 24 and two connection walls 25 on one side, and two assembly walls 26 respectively connecting the connection walls 25.

The base wall 21 and the side walls 22 together define a mounting groove 23, and the base wall 21 has a mounting surface 211 facing the light source module 3, and a substantially arc-shaped joint surface opposite to the mounting surface 211. 212. The mounting surface 211 is disposed on the carrier plate 31 of the light source module 3 to facilitate the transfer of thermal energy generated by the light source module 3 to the heat dissipation walls 24 of the lamp holder 2 .

Each side wall 22 has a side spaced from the mounting surface 211 of the base wall 21 The wall portion 221 and a protruding wall portion 222 that is connected between the mounting surface 211 and the side wall portion 221 and that protrudes away from the other side wall 22 . The side wall portion 221 is fixedly disposed by the light guiding module 4, and the space defined between the protruding wall portions 222 can fix the carrying plate 31 of the light source module 3.

The heat dissipation walls 24 of the present embodiment are respectively connected to the joint surface 212 of the base wall 21 and located between the connection walls 25. The heat dissipation walls 24 extend from the joint surface 212 away from the light source module 3, and extend along the length direction z to form a long plate shape, which can be used to generate the light source module 3 Heat is transferred to the outside world to help dissipate heat. The connecting walls 25 are spaced apart from each other on the joint surface 212 of the base wall 21 and extend away from the light source module 3. The assembly walls 26 are slightly cylindrical and are respectively connected to one ends of the connecting walls 25 away from the light source module 3, and each of the assembly walls 26 has an inner wall surface 261 facing the other assembly wall 26, opposite to the An outer wall surface 262 of the inner wall surface 261, and a groove 263 recessed in the outer wall surface 262.

The light guiding module 4 of the present embodiment further includes two light-transmitting strips 45 adjacent to each other and located on the light-emitting surface 412 of the optical fiber body 41. The material of the light-transmitting strips 45 is the same as that of the optical fiber body 41, and is a light-transmissive plastic material, so that the light emitted through the light-emitting surface 412 can be uniformly emitted outward.

The lampshade 5 is made of a light transmissive plastic material and is disposed on the lamp holder 2. The lampshade 5 is slightly semi-cylindrical and extends along the length direction z. The lampshade 5 includes a circular arc-shaped and long-extending cover wall 52, and two are connected to the two long sides of the cover wall 52, respectively. The extension wall 53. The extension walls 53 are respectively engaged toward the grooves 263 of the assembly walls 26, so that the lampshade 5 and the lamp are The seat 2 is fixed in combination. The extending wall 53 and the cover wall 52 define a housing 51 for accommodating the light source module 3 and the light guiding module 4, and the chamber 51 has two positions respectively in the length direction of the cover wall 52. The opening 511 on the opposite side of the two.

The end caps 6 are detachably mounted on both sides of the lamp cover 5 and are respectively used to close the openings 511 of the chamber 51.

When the embodiment is assembled, an adhesive, such as a super glue, may be applied to the grooves 263 of the assembly walls 26 of the socket 2 to cause the extension walls 53 of the lamp cover 5 to respectively engage the grooves. The inner 263 can be fixed by adhesion and form an airtight state. Of course, in the implementation, a gas-tight adhesive strip (not shown) can be respectively disposed in each of the grooves 263, and can be pressed by the elastic force of the light cover 5 itself. The airtight strips are formed into an airtight state, and finally, after the end caps 6 are respectively covered, the assembly is completed in this embodiment. In addition, during the assembly process, the air in the chamber 51 of the lampshade 5 can be extracted to form a vacuum or micro-vacuum state, so that the heat energy generated by the light source module 3 can be generated on the one hand. It is not transmitted to the chamber 51 via the air, so that most of the heat energy can be transmitted to the outside through the heat dissipation walls 24 of the socket 2, and on the other hand, the water vapor in the air can be prevented from adhering to the lampshade 5. The inner peripheral surface forms a water mist, which affects the illumination brightness.

The light-transmissive strips of the present embodiment are substantially the same as those of the first preferred embodiment. The difference is that after the light is emitted from the light-emitting surface 412, the light-transmissive strips 45 enter the light-transmitting strips 45, and finally through the light-transmitting strips. 45 is emitted, so that the uniformity of the emitted light is better. It should be noted that the light-transmitting strips 45 are auxiliary to make the outgoing light more uniform, and are not necessarily limited. Other work of this embodiment The effect is the same as that of the first preferred embodiment, and details are not described herein again.

Referring to FIG. 8 , a third preferred embodiment of the present illuminating device is substantially the same as the first preferred embodiment. The difference is mainly in that the light guiding module 4 is only provided with the first reflective strip 42 and The second reflective strip 43 , that is to say the light guiding module 4 , is not necessary to provide the third reflective strip 44 . In the preferred embodiment, the arrangement relationship between the first reflective strip 42 and the second reflective strip 43 can also achieve the purpose of uniformly reflecting light of the present invention. Of course, the lamp holder 2 of the preferred embodiment can also be combined with a lamp cover by a suitable structure to cover the lamp holder 2, the light source module 3 and the light guiding mode of the embodiment by the lamp cover. Group 4, in turn, achieves the same efficacy as the second preferred embodiment.

Referring to FIG. 9 and FIG. 10, a fourth preferred embodiment of the illuminating device of the present invention is substantially the same as the structure and material of the first preferred embodiment. The difference is mainly in the structure and shape of the light guiding module 4. design.

The optical fiber body 41 of the light guiding module 4 is gradually extended toward the light emitting surface 412 by the light incident surface 411, and the light emitting surface 412 is curved upward. The first reflective strip 42 is spaced apart from the light exit surface 412. The second reflective strip 43 is adjacent to the light incident surface 411 and has a slightly fan-shaped cross section. The third reflective strip 44 is adjacent to the light incident surface 411 and has a substantially fan-shaped cross section.

The optical fiber body 41 is gradually enlarged and extended from the light incident surface 411 to the light exit surface 412, and thus the area of the light exit surface 412 is different from that of the first preferred embodiment. Larger, the light emitted from the light-emitting surface 412 is spread wider, and the novel light-emitting device can be applied to more applications, such as LED tubes. In addition, the light is apart The light may be emitted from the light-emitting surface 412, and part of the light may be emitted from the side surface 413 which is respectively connected between the light-incident surface 411 and the light-emitting surface 412, and the material characteristics of the optical fiber body 41 are used as long as the light reaches the full Under the condition of the reflection, the side surfaces 413 may also reflect the light reflected by the second reflecting surface 431 and the third reflecting surface 441 toward the light emitting surface 412, respectively. The remaining functions of this embodiment are the same as those of the first preferred embodiment, and are not described herein again.

Similarly, the lamp holder 2 of the preferred embodiment can also be combined with a lamp cover through a suitable structure to cover the lamp holder 2, the light source module 3 and the light guide of the embodiment. The module 4, in turn, achieves the same efficacy as the second preferred embodiment.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

2‧‧‧ lamp holder

21‧‧‧ base wall

211‧‧‧Installation surface

212‧‧‧ joint surface

22‧‧‧ side wall

221‧‧‧ Sidewall

222‧‧‧Spiral expansion

23‧‧‧Installation slot

24‧‧‧ Thermal wall

25‧‧‧Connecting wall

26‧‧‧Assembled wall

261‧‧‧ inner wall

262‧‧‧ outer wall

263‧‧‧ trench

3‧‧‧Light source module

31‧‧‧ carrying board

32‧‧‧LED lights

4‧‧‧Light guide module

41‧‧‧Fibre body

411‧‧‧Into the glossy surface

412‧‧‧Glossy surface

413‧‧‧ side surface

42‧‧‧First reflective strip

421‧‧‧First reflective surface

422‧‧‧ first side

423‧‧‧ second side

43‧‧‧Second reflective strip

431‧‧‧Second reflective surface

44‧‧‧ third reflective strip

441‧‧‧ third reflecting surface

45‧‧‧Light strip

5‧‧‧shade

51‧‧ ‧ room

511‧‧‧ openings

52‧‧‧ hood

53‧‧‧Extension wall

6‧‧‧End cover

Z‧‧‧ Length direction

1 is a schematic longitudinal cross-sectional view of a novelty of the certificate number M347579; FIG. 2 is a schematic transverse cross-sectional view of the novel patent of FIG. 1; FIG. 3 is a partial perspective view of a first preferred embodiment of the novel light-emitting device Figure 4 is a transverse cross-sectional view of the first preferred embodiment; Figure 5 is a schematic view similar to Figure 4, illustrating the reflection of light within a light guiding module; 6 is a partial perspective view of a second preferred embodiment of the present illuminating device; FIG. 7 is a transverse cross-sectional view of the second preferred embodiment; FIG. 8 is a third preferred embodiment of the illuminating device of the present invention. FIG. 9 is a transverse cross-sectional view of a fourth preferred embodiment of the novel illumination device; and FIG. 10 is a schematic view similar to FIG. 9 illustrating the reflection of light within a light guide module.

2‧‧‧ lamp holder

21‧‧‧ base wall

22‧‧‧ side wall

23‧‧‧Installation slot

3‧‧‧Light source module

31‧‧‧ carrying board

32‧‧‧LED lights

4‧‧‧Light guide module

41‧‧‧Fibre body

411‧‧‧Into the glossy surface

412‧‧‧Glossy surface

42‧‧‧First reflective strip

421‧‧‧First reflective surface

422‧‧‧ first side

423‧‧‧ second side

43‧‧‧Second reflective strip

431‧‧‧Second reflective surface

44‧‧‧ third reflective strip

441‧‧‧ third reflecting surface

Claims (10)

A light-emitting device comprises: a lamp holder extending along a length direction and defining a mounting groove; a light source module mounted in the mounting groove of the lamp holder; and a light guiding module disposed on the lamp socket And comprising a fiber body extending along the length direction, and a first reflective strip and a second reflective strip respectively embedded in the optical fiber body, the optical fiber body having a light source module facing the light source module and the light source module a light incident surface of the group of light incident, and a light exit surface opposite to the light incident surface and for emitting light, the light exit surface and the light incident surface extend along the length direction, and the first reflective strip can reflect through The light from the light incident surface is reflected by the second light reflecting strip adjacent to the light incident surface of the first light reflecting strip and reflected by the first reflective strip toward the light emitting surface. The illuminating device of claim 1, wherein the light guiding module further comprises a first portion embedded in the optical fiber body and adjacent to the first light reflecting strip and spaced apart from the second light reflecting strip a three-reflecting strip capable of reflecting the light reflected by the first reflecting strip in a direction of the light-emitting surface. The illuminating device of claim 2, wherein the first reflective strip has two first reflecting surfaces facing the light source module, and each of the first reflective masks has a first side connected to the other first reflecting surface. And a second side opposite to the first side, each of the first reflective surfaces extends obliquely from the first side toward the second side toward the light emitting surface, and the second reflective strip has a a second reflecting surface facing one of the first reflecting surfaces The third reflective strip has a third reflective surface facing the other of the first reflective surfaces. The illuminating device of claim 1, wherein the socket comprises a base wall extending along the length direction, and two extending from the two long sides of the base wall toward the light guiding module a side wall provided for the light guiding module, the base wall and the side walls jointly defining the mounting groove. The illuminating device of claim 4, wherein the base wall of the socket has a mounting surface facing the light source module, and a joint surface opposite to the mounting surface, the socket further comprising a plurality of spaced apart regions a heat dissipation wall extending from the joint surface away from the light source module. The illuminating device of claim 5, wherein the socket further comprises two connecting walls extending from the engaging surface away from the light source module, and two assembling walls respectively connecting the connecting walls, The heat dissipation walls of the socket are located between the connecting walls, and the light emitting device further comprises a lamp cover disposed on the lamp socket, the lamp cover is combined with the assembly walls of the lamp socket and defines a light source The module and the chamber of the light guiding module. The illuminating device of claim 6, wherein each of the assembled walls of the socket has an inner wall surface facing the other assembly wall, an outer wall surface opposite to the inner wall surface, and a recessed surface on the outer wall surface The light cover includes a cover wall and two extension walls respectively engaged from the two long sides of the cover wall toward the grooves of the assembly walls. The illuminating device of claim 7, wherein each side wall of the socket has a side wall portion spaced apart from a mounting surface of the base wall, and a connection between the mounting surface and the side wall portion and away from the other The direction of a side wall The light source module is disposed on the mounting surface of the base wall and is fixed between the protruding wall portions, and the light guiding module is disposed between the side wall portions. The light-emitting device of claim 3, wherein the light guiding module further comprises two light-transmitting strips adjacent to each other and extending along the length direction and located on the light-emitting surface of the optical fiber body. The light-emitting device of claim 1, wherein the light source module comprises a carrier plate extending along the length direction, and a plurality of LED lamps disposed on the carrier plate spaced apart from each other along the length direction.