CN102221770A - Lens cap device and projection machine - Google Patents
Lens cap device and projection machine Download PDFInfo
- Publication number
- CN102221770A CN102221770A CN2011101388595A CN201110138859A CN102221770A CN 102221770 A CN102221770 A CN 102221770A CN 2011101388595 A CN2011101388595 A CN 2011101388595A CN 201110138859 A CN201110138859 A CN 201110138859A CN 102221770 A CN102221770 A CN 102221770A
- Authority
- CN
- China
- Prior art keywords
- lens cap
- projector
- sensitive film
- metal
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The invention discloses a lens cap device, which is applied to a projection machine and comprises a lens cap, a locating column, an elastic part, a sensitive film and a metal hook, wherein one end of the elastic part is fixed at a shell of the projection machine and the other end of the elastic part is connected with one end of the lens cap; the locating column and the sensitive film are arranged at the inner side of the lens cap; and the metal hook consists of two metal strips with different coefficients of thermal expansion, and comprises a body and a clamping part. When the projection machine is not turned on, the metal hook can be contacted with the sensitive film and the locating column can be clamped by the clamping part; and when the projection machine is turned on, the metal hook is heated and the temperature of the metal hook is raised, then the metal hook bends towards the metal strip with smaller coefficient of thermal expansion, and the locating column is released by the clamping part. The lens cap device can automatically open the lens cap and has a simple structure and a low manufacture cost; and moreover, the process of opening the lens cover does not consume energy, thereby reducing the use cost. The invention also discloses the projection machine.
Description
Technical field
The invention belongs to the lens cap technical field, relate in particular to a kind of lens cap device and projector.
Background technology
Projector is the video device that the modern uses always, is widely used in bulletin, meeting or education and training, data can be projeced on the bigger plane or screen by projector.In the use of projector, must picture be transmitted through the external world by camera lens, if the camera lens surface by scratch or when being stained with dust, projector will be smudgy by the image that camera lens throwed.Therefore, must keep lens cleaning and avoid extraneous dust to stick at the camera lens surface.
Projector comprises at least: casing; Be arranged at the camera lens in the casing; Be opened on the casing, the mirror plate corresponding with lens location; The air draft pipeline that is used to dispel the heat; Be opened in the exhaust outlet on the casing.Present lens cap mainly contains two kinds of forms: the first, and the mirror plate of projector is provided with external thread, and internal thread is set on lens cap, in the time will using projector, lens cap is screwed off from mirror plate; The second, lens cap is connected with power part, when needs use projector, drives the power part running, drives lens cap in the time of the power part running and opens automatically.
But, when can't starting working in projector, open automatically first kind of above-mentioned lens cap, though and second kind of lens cap can be opened automatically, but to dispose power part in addition for lens cap, this cause lens cap complex structure, improved the manufacturing cost of lens cap, and the running of power part need expend the energy, improved the use cost of lens cap.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of lens cap device, it is simple in structure, can realize automatic unlatching, and its manufacturing cost and use cost are lower.
For achieving the above object, the invention provides following technical scheme:
A kind of lens cap device is applied to projector, comprises lens cap, reference column, elastomeric element, sensitive film and metal trip;
Casing, the other end that one end of described elastomeric element is fixed in described projector is connected in an end of described lens cap, and described elastomeric element can provide power away from the mirror plate of described projector to described lens cap;
Described reference column and described sensitive film are arranged at the inboard of described lens cap;
Described metal trip is made up of two different sheet metals of thermal expansivity, comprises main body and holding section;
When described projector did not open, described metal trip can contact with described sensitive film, and described holding section can hold described reference column; When described projector opens, the intensification of being heated of described metal trip, the little sheet metal generation deflection of described metal trip thermotropism expansion coefficient, described holding section discharges described reference column.
Preferably, in above-mentioned lens cap device, the curved structure in described holding section.
Preferably, in above-mentioned lens cap device, two sheet metals forming described metal trip are stainless steel substrates and aluminium flake, perhaps are tin sheet and lead flake, perhaps are tin sheet and zinc metal sheet.
Preferably, in above-mentioned lens cap device, described sensitive film is provided with the sheet metal of black coating for the surface.
Preferably, in above-mentioned lens cap device, the arranged outside of described lens cap has pulling part.
The invention also discloses a kind of lens cap device, be applied to projector, comprise lens cap, sensitive film and support component;
Described sensitive film is arranged at the inboard of described lens cap;
Described support component contacts with described sensitive film, is made up of two different sheet metals of thermal expansivity, and the one end is fixed in the casing of projector, and the other end is connected in the inboard or the sensitive film of described lens cap;
When described projector did not open, the described lens cap of described supporting units support was positioned at the mirror plate place of described projector; When described projector opens, the intensification of being heated of described support component, described support component drives the exhaust outlet that described lens cap moves to described projector to the little sheet metal generation deflection of thermal expansivity.
Preferably, in above-mentioned lens cap device, two sheet metals forming described support component are stainless steel substrates and aluminium flake, perhaps are tin sheet and lead flake, perhaps are tin sheet and zinc metal sheet.
Preferably, in above-mentioned lens cap device, described sensitive film is provided with the sheet metal of black coating for the surface.
Preferably, in above-mentioned lens cap device, described support component drives described lens cap and moves to one of a plurality of exhaust outlets of described projector.
The invention also discloses a kind of projector, comprising: casing, camera lens, mirror plate, air draft pipeline and exhaust outlet also comprise above-mentioned any lens cap device.
This shows, in the above-mentioned disclosed lens cap device of the present invention, by sensitive film the light that projector projects is converted to heat energy, under the effect of heat energy, by different sheet metal of two thermal expansivity and the metal trip generation deflection of forming, fixed leg is deviate from from the holding section of metal trip, and lens cap is opened under the restoring force effect of elastomeric element automatically afterwards.Lens cap device disclosed by the invention need not to be provided with in addition power part just can realize automatic unlatching, and its simple in structure, low cost of manufacture, and the automatic unlatching of lens cap consumes energy have not reduced use cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Structural representation when Fig. 1 is in closed condition for a kind of lens cap device disclosed by the invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Structural representation when Fig. 3 is in opening for lens cap device shown in Figure 1;
Fig. 4 is the structural representation of another kind of metal trip disclosed by the invention;
Structural representation when Fig. 5 is in closed condition for another kind of lens cap device disclosed by the invention;
Structural representation when Fig. 6 is in opening for lens cap device shown in Figure 5.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The invention discloses a kind of lens cap device, it is simple in structure, can realize automatic unlatching, and its manufacturing cost and use cost are lower.
Referring to Fig. 1, the structural representation when Fig. 1 is in closed condition for a kind of lens cap device disclosed by the invention.Comprise: lens cap 11, elastomeric element 12, sensitive film 13, metal trip 14 and reference column 15.
Wherein, casing 101, the other end that an end of elastomeric element 12 is fixed in projector is connected in an end of lens cap 11, can provide power away from the mirror plate 102 of projector to lens cap 11.In force, elastomeric element 12 can be spring or rope with retractility, and the quantity of elastomeric element 12 can be for a plurality of, and can provide bigger restoring force this moment.
The structure of metal trip 14 as shown in Figure 2, be made up of two different sheet metals 141 and 142 of thermal expansivity, metal trip 14 comprises main body 143 and holding section 144, when projector does not open, lens cap 11 is positioned at mirror plate 102 places, and metal trip 14 can contact with sensitive film 13.
When projector did not open, lens cap 11 was positioned at mirror plate 102 places of projector, and promptly lens cap is in closed condition, and the holding section 144 of metal trip 14 can hold reference column 15.When projector starts working, camera lens passes through mirror plate 102 to extraneous throw light, the sensitive film 13 that be arranged at the lens cap inboard this moment can convert the light that receives to heat energy, because metal trip 14 can contact with sensitive film when camera lens was in closed condition, so the heat energy that sensitive film 13 produces will be passed on the metal trip 14.Rising along with metal trip 14 temperature, deformation can take place in two sheet metals forming metal trip 14, because the thermal expansivity difference of two sheet metals, deflection can take place to the less sheet metal place of thermal expansivity in metal trip 14, at this moment, fixed leg 15 will be deviate from from metal trip 14, and to elastomeric element 12 place direction motions, lens cap 11 is unlocked (as shown in Figure 3) lens cap 11 under the effect of elastomeric element 12 restoring forces.
After closing projector, spur lens cap 11 round about, fixed leg 15 is stuck in the holding section 144, close lens cap 11.
In the above-mentioned disclosed lens cap device of the present invention, by sensitive film 13 light that projector projects is converted to heat energy, under the effect of heat energy, deflection takes place in the metal trip of being made up of two different sheet metals 141 and 142 of thermal expansivity 14, fixed leg 15 is deviate from from the holding section 144 of metal trip 14, and lens cap 11 is opened under the restoring force effect of elastomeric element 12 automatically afterwards.Lens cap device disclosed by the invention need not to be provided with in addition power part just can realize automatic unlatching, and its simple in structure, low cost of manufacture, and the automatic unlatching of lens cap consumes energy have not reduced use cost.
In force, the structure of metal trip 14 can be as shown in Figure 2, the holding section 144 curved structures of metal trip 14.After closing projector, spur in the process of lens cap 11 in the other direction, be convenient to fixed leg 15 is stuck in the holding section 144.
The structure of metal trip 14 can also be as shown in Figure 4, and the main body 143 of metal trip 14 and the angle between the holding section 144 are greater than 0 ° and less than 90 °.After closing projector, spur in the process of lens cap 11 in the other direction, be convenient to fixed leg 15 is stuck in the holding section 144.
In force, choose thermal expansivity and differ bigger metal making sheet metal 141 and 142, its objective is the degree of flexibility that increases metal trip 14.Preferably, in two sheet metals forming metal trip 14, the less sheet metal of thermal expansivity can be selected stainless steel substrates, tin sheet or steel disc for use, and the sheet metal that thermal expansivity is bigger can be selected aluminium flake, lead flake or zinc metal sheet for use.
In order to improve the ability that sensitive film 13 produces heat energy, sensitive film 13 selects for use the surface to be provided with the sheet metal of black coating.
In addition, can be in the arranged outside pulling part (not shown) of lens cap 11, after closing projector, the user can close lens cap 11 by the pulling pulling part.
The invention also discloses a kind of lens cap device, need not just can realize the automatic open and close of lens cap by means of power part.
Referring to Fig. 5, the structural representation when Fig. 5 is in closed condition for another kind of lens cap device disclosed by the invention.Comprise: lens cap 41, sensitive film 42 and support component 43.
Wherein, lens cap 41 can all cover mirror plate 102, is provided with sensitive film 42 in the inboard (side relative with camera lens) of lens cap 41, and sensitive film 42 can be a heat energy with transform light energy.
When projector did not open, support component 43 support lens lid 41 was positioned at mirror plate 102 places of projector, and promptly lens cap 41 is in closed condition, guaranteed that lens cap 41 effectively covers mirror plate 102, avoided camera lens by scratch or be stained with dust.When projector starts working, camera lens passes through mirror plate 102 to extraneous throw light, the sensitive film 42 that be arranged at the lens cap inboard this moment can convert the light that receives to heat energy, because support component 43 keeps in touch with sensitive film 42, so the heat energy that sensitive film 42 produces will be passed to support component 43.Rising along with support component 43 temperature, deformation can take place in two sheet metals forming support component 43, because the thermal expansivity difference of two sheet metals, deflection can take place to the less sheet metal place of thermal expansivity in support component 43, and drive lens cap 41 motions, lens cap 41 is opened (as shown in Figure 6).Lens cap 41 after opening is positioned at exhaust outlet 103 places of projector, a large amount of heats that projector produces in operational process are discharged from exhaust outlet 103, because lens cap 41 is positioned at exhaust outlet 103 places, so sensitive film 42 can continue to receive heat energy, support component 43 remains on current state under the effect of heat energy.After projector closes, will no longer produce heat, support component 43 coolings gradually this moment, when it was cooled to normal temperature, two sheet metals forming support component 43 returned to normal, and drove lens cap 41 and kept in the center, cover mirror plate 102 places, finish automatically and close.
In the above-mentioned disclosed lens cap device of the present invention, by sensitive film 42 light that projector projects is converted to heat energy, under the effect of heat energy, deflection takes place in the support component of being made up of two different sheet metals of thermal expansivity 43, the motion of drive lens cap realizes the automatic unlatching of lens cap; After the heat energy disappearance that acts on the support component 43, two sheet metals forming support component 43 return to normal, and drive lens cap 41 and keep in the center, and finish automatically and close.
In force, choose the metal that thermal expansivity differs bigger and make sheet metal respectively, its objective is the degree of flexibility that increases support component 43.Preferably, in two sheet metals forming support component 43, the sheet metal that thermal expansivity is bigger can be selected stainless steel substrates, tin sheet or steel disc for use, and the less sheet metal of thermal expansivity can be selected aluminium flake, lead flake or zinc metal sheet for use.
In order to improve the ability that sensitive film 42 produces heat energy, sensitive film 42 selects for use the surface to be provided with the sheet metal of black coating.
When projector had a plurality of exhaust outlet, support component 43 drove one that lens cap moves in a plurality of exhaust outlets and gets final product in the back that is heated.
The invention also discloses a kind of projector, comprise casing, camera lens, mirror plate, air draft pipeline, exhaust outlet and lens cap device.This lens cap device is above-mentioned disclosed any one lens cap device of the present invention, and when opening in projector, lens cap can be opened automatically.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a lens cap device is applied to projector, it is characterized in that, comprises lens cap, reference column, elastomeric element, sensitive film and metal trip;
Casing, the other end that one end of described elastomeric element is fixed in described projector is connected in an end of described lens cap, and described elastomeric element can provide power away from the mirror plate of described projector to described lens cap;
Described reference column and described sensitive film are arranged at the inboard of described lens cap;
Described metal trip is made up of two different sheet metals of thermal expansivity, comprises main body and holding section;
When described projector did not open, described metal trip can contact with described sensitive film, and described holding section can hold described reference column; When described projector opens, the intensification of being heated of described metal trip, the little sheet metal generation deflection of described metal trip thermotropism expansion coefficient, described holding section discharges described reference column.
2. lens cap device according to claim 1 is characterized in that, the curved structure in described holding section.
3. lens cap device according to claim 1 and 2 is characterized in that, two sheet metals forming described metal trip are stainless steel substrates and aluminium flake, perhaps are tin sheet and lead flake, perhaps are tin sheet and zinc metal sheet.
4. lens cap device according to claim 3 is characterized in that, described sensitive film is provided with the sheet metal of black coating for the surface.
5. lens cap device according to claim 4 is characterized in that the arranged outside of described lens cap has pulling part.
6. a lens cap device is applied to projector, it is characterized in that, comprises lens cap, sensitive film and support component;
Described sensitive film is arranged at the inboard of described lens cap;
Described support component contacts with described sensitive film, is made up of two different sheet metals of thermal expansivity, and the one end is fixed in the casing of projector, and the other end is connected in the inboard or the sensitive film of described lens cap;
When described projector did not open, the described lens cap of described supporting units support was positioned at the mirror plate place of described projector; When described projector opens, the intensification of being heated of described support component, described support component drives the exhaust outlet that described lens cap moves to described projector to the little sheet metal generation deflection of thermal expansivity.
7. lens cap device according to claim 6 is characterized in that, two sheet metals forming described support component are stainless steel substrates and aluminium flake, perhaps are tin sheet and lead flake, perhaps are tin sheet and zinc metal sheet.
8. according to claim 6 or 7 described lens cap devices, it is characterized in that described sensitive film is provided with the sheet metal of black coating for the surface.
9. lens cap device according to claim 6 is characterized in that described support component drives described lens cap and moves to one of a plurality of exhaust outlets of described projector.
10. projector comprises: casing, camera lens, mirror plate, air draft pipeline and exhaust outlet, it is characterized in that, and also comprise each described lens cap device in the claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110138859 CN102221770B (en) | 2011-05-25 | 2011-05-25 | Lens cap device and projection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110138859 CN102221770B (en) | 2011-05-25 | 2011-05-25 | Lens cap device and projection machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102221770A true CN102221770A (en) | 2011-10-19 |
| CN102221770B CN102221770B (en) | 2013-06-26 |
Family
ID=44778358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110138859 Expired - Fee Related CN102221770B (en) | 2011-05-25 | 2011-05-25 | Lens cap device and projection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102221770B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031862A (en) * | 2018-08-28 | 2018-12-18 | 张超 | A kind of outdoor projection instrument |
| CN110251819A (en) * | 2013-04-19 | 2019-09-20 | 祖雷克斯制药公司 | Medical skin applicator |
| CN110876044A (en) * | 2018-08-30 | 2020-03-10 | 深圳光峰科技股份有限公司 | Projection system and automatic starting method of projection equipment |
| CN115493052A (en) * | 2022-11-16 | 2022-12-20 | 山东省物化探勘查院 | Portable level |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1039415A (en) * | 1996-05-20 | 1998-02-13 | Hitachi Ltd | Projection lens device and projection image display device using the same |
| CN1197225A (en) * | 1997-04-18 | 1998-10-28 | 致伸实业股份有限公司 | Projecting head mechanism of projector |
| CN1368659A (en) * | 2001-02-09 | 2002-09-11 | 明碁电通股份有限公司 | Lens cover slide with function of starting close taking-up |
| CN1432862A (en) * | 2002-01-14 | 2003-07-30 | 明基电通股份有限公司 | Lens cap assembly |
| JP2004145264A (en) * | 2002-08-30 | 2004-05-20 | Victor Co Of Japan Ltd | Projecter |
| US20050041222A1 (en) * | 2003-02-13 | 2005-02-24 | Seiko Epson Corporation | Projector |
| CN1740903A (en) * | 2005-09-20 | 2006-03-01 | 乐金电子（沈阳）有限公司 | Projector lens cap |
| CN1862367A (en) * | 2005-05-09 | 2006-11-15 | 中强光电股份有限公司 | Sliding lens cap |
| CN1920659A (en) * | 2005-08-23 | 2007-02-28 | 明基电通股份有限公司 | Electronic device with portable lens cover |
| CN2914138Y (en) * | 2006-05-11 | 2007-06-20 | 华晶科技股份有限公司 | Multidisc lens cap mechanism |
| CN101114110A (en) * | 2006-07-27 | 2008-01-30 | 中强光电股份有限公司 | Lens cap device |
| JP2008116508A (en) * | 2006-10-31 | 2008-05-22 | Casio Comput Co Ltd | Projection apparatus, projection method and program |
| JP2008262062A (en) * | 2007-04-12 | 2008-10-30 | Sony Corp | Projection display device |
| CN101419383A (en) * | 2007-10-22 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | Projection device |
| CN201340511Y (en) * | 2009-01-09 | 2009-11-04 | 日立数字映像(中国)有限公司 | Automatic opening or closing lens cap component |
| CN101581410A (en) * | 2008-05-15 | 2009-11-18 | 卡西欧计算机株式会社 | Light source unit and projector |
-
2011
- 2011-05-25 CN CN 201110138859 patent/CN102221770B/en not_active Expired - Fee Related
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1039415A (en) * | 1996-05-20 | 1998-02-13 | Hitachi Ltd | Projection lens device and projection image display device using the same |
| CN1197225A (en) * | 1997-04-18 | 1998-10-28 | 致伸实业股份有限公司 | Projecting head mechanism of projector |
| CN1368659A (en) * | 2001-02-09 | 2002-09-11 | 明碁电通股份有限公司 | Lens cover slide with function of starting close taking-up |
| CN1432862A (en) * | 2002-01-14 | 2003-07-30 | 明基电通股份有限公司 | Lens cap assembly |
| JP2004145264A (en) * | 2002-08-30 | 2004-05-20 | Victor Co Of Japan Ltd | Projecter |
| US20050041222A1 (en) * | 2003-02-13 | 2005-02-24 | Seiko Epson Corporation | Projector |
| CN1862367A (en) * | 2005-05-09 | 2006-11-15 | 中强光电股份有限公司 | Sliding lens cap |
| CN1920659A (en) * | 2005-08-23 | 2007-02-28 | 明基电通股份有限公司 | Electronic device with portable lens cover |
| CN1740903A (en) * | 2005-09-20 | 2006-03-01 | 乐金电子（沈阳）有限公司 | Projector lens cap |
| CN2914138Y (en) * | 2006-05-11 | 2007-06-20 | 华晶科技股份有限公司 | Multidisc lens cap mechanism |
| CN101114110A (en) * | 2006-07-27 | 2008-01-30 | 中强光电股份有限公司 | Lens cap device |
| JP2008116508A (en) * | 2006-10-31 | 2008-05-22 | Casio Comput Co Ltd | Projection apparatus, projection method and program |
| JP2008262062A (en) * | 2007-04-12 | 2008-10-30 | Sony Corp | Projection display device |
| CN101419383A (en) * | 2007-10-22 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | Projection device |
| CN101581410A (en) * | 2008-05-15 | 2009-11-18 | 卡西欧计算机株式会社 | Light source unit and projector |
| CN201340511Y (en) * | 2009-01-09 | 2009-11-04 | 日立数字映像(中国)有限公司 | Automatic opening or closing lens cap component |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251819A (en) * | 2013-04-19 | 2019-09-20 | 祖雷克斯制药公司 | Medical skin applicator |
| CN109031862A (en) * | 2018-08-28 | 2018-12-18 | 张超 | A kind of outdoor projection instrument |
| CN110876044A (en) * | 2018-08-30 | 2020-03-10 | 深圳光峰科技股份有限公司 | Projection system and automatic starting method of projection equipment |
| CN110876044B (en) * | 2018-08-30 | 2021-11-12 | 深圳光峰科技股份有限公司 | Projection system and automatic starting method of projection equipment |
| CN115493052A (en) * | 2022-11-16 | 2022-12-20 | 山东省物化探勘查院 | Portable level |
| CN115493052B (en) * | 2022-11-16 | 2023-02-03 | 山东省物化探勘查院 | Portable level |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102221770B (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102221770B (en) | Lens cap device and projection machine | |
| CN106101497B (en) | From dedusting heat dissipation monitoring camera | |
| CN204425477U (en) | A kind of Anti-fogging camera protecgulum and tubular video camera | |
| CN112128581A (en) | Network engineering monitoring device | |
| CN112333362A (en) | Camera assembly and electronic equipment | |
| CN208691307U (en) | The external lens bracket of hand-held intelligent terminal and the external camera lens for using the bracket | |
| CN211860310U (en) | Camera ball frame that prevents dust | |
| CN210720981U (en) | Motion camera lens protection architecture and motion camera | |
| CN209674086U (en) | A kind of eyeglass demister | |
| CN206341299U (en) | A kind of network high definition monitoring camera for being adapted to many camera lenses | |
| TW200613778A (en) | Optical film having adhesive and image display apparatus | |
| CN206741341U (en) | One kind palm fingerprint instrument self-heating temperature-controlling system | |
| CN203057310U (en) | A cell phone camera module | |
| CN210640966U (en) | Double-angle acquisition additional lens for intelligent mobile equipment | |
| CN209198861U (en) | A kind of anti-light screen | |
| CN206851213U (en) | One kind is applied to ROV front ends collision prevention device | |
| CN209606879U (en) | A kind of notebook rear lid case being convenient to clean radiator fan | |
| CN208905110U (en) | A kind of smart phone 3D camera | |
| CN213815363U (en) | LED high definition display screen | |
| CN107209402A (en) | A kind of wear-type device with defrosting function | |
| CN219676809U (en) | Display screen with prevent scraping function | |
| CN211719037U (en) | Miniature teaching projecting apparatus | |
| CN208239705U (en) | A kind of optical lens of high pixel low-cost and easy-to processing | |
| CN210048695U (en) | 3D cambered surface cell-phone camera lens protection film | |
| CN219392442U (en) | Composite lens with good waterproof effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20160525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |