CN203204277U - Dimmable electronic density mirror - Google Patents
Dimmable electronic density mirror Download PDFInfo
- Publication number
- CN203204277U CN203204277U CN201320182045.6U CN201320182045U CN203204277U CN 203204277 U CN203204277 U CN 203204277U CN 201320182045 U CN201320182045 U CN 201320182045U CN 203204277 U CN203204277 U CN 203204277U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- light valve
- crystal light
- control circuit
- fixed head
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a dimmable electronic density mirror, which is arranged on one side of a lens. The dimmable electronic density mirror comprises a liquid crystal light valve and control circuit boards arranged on the periphery of the liquid crystal light valve; the control circuit board changes the voltage or frequency to change the density of the liquid crystal light valve; and the liquid crystal light valve has a diameter larger or equal to 30mm. The utility model has high optical precision, convenient usage, and can be widely applied to various light-dimmer or light control devices.
Description
Technical field
The utility model relates to the photography auxiliary appliance, relates in particular to a kind of tunable optical electron density mirror for control light light modulation equipment such as camera, video camera, digital movie machines.
Background technology
Pick glass mainly is be used to preventing overexposure, it can make photographic goods only reduce the logical light quantity of camera lens, tone is not then produced any influence, and the Light-modulating mirror of Shi Yonging has constant density mirror or machinery to change the optical density (OD) mirror in the market, to reach the purpose of light modulation control light.But the density of constant density mirror is fixed, and can not arbitrarily adjust as required, along with the variation of surround lighting, in order to reach same light quantity effect, must change pick glass, not only uses inconvenience, also can increase corresponding expense.Though machinery becomes optical density mirror variable density, its pace of change is slower, and also more complicated is operated in quick variation that can't response environment light.
The utility model content
The utility model is in order to address the above problem, a kind of tunable optical electron density mirror is proposed, this tunable optical electron density mirror is located at camera lens one side, comprise liquid crystal light valve and be located at liquid crystal light valve control circuit board all around, described control circuit board is by changing the density that voltage or frequency change liquid crystal light valve, and the diameter of described liquid crystal light valve is more than or equal to 30mm.
Described liquid crystal light valve and control circuit board are circular or square.
In one embodiment, also comprise a fixed mount, described fixed mount comprises a fixed head, be located at through hole consistent with diameter of lens on the fixed head, be located at a projection of fixed head bottom, and described fixed head top raises up and forms a boss, and described fixed head both sides are twice flanging upwards.
The utility model adopts liquid crystal light valve as the main part of pick glass, its transparency than existing pick glass under the state that does not power up is doubled, thereby make pick glass can adapt to more lightness environment, the utility model adopts line control, do not need to dispose mechanical hook-up, just can reach accuracy controlling, use convenient, its processing technology is the photoetching technique of electronic component, therefore optical accuracy is considerably beyond existing pick glass, and color response scope is more widely arranged, can also make the optical density (OD) mirror of corresponding specific wavelength, owing in control circuit, adopted light activated element, so can accomplish to control automatically the logical light quantity of eyeglass, namely reached the effect of automatic adjustment density.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further, wherein:
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the structural representation of another embodiment of the utility model;
Fig. 3 is the position view of the utility model one embodiment;
Fig. 4 is the position view of another embodiment of the utility model;
Fig. 5 is the structural representation of the utility model fixed mount.
Embodiment
As shown in Figures 1 to 4, the tunable optical electron density mirror 1 that the utility model one embodiment proposes is fixed in camera lens 2 one sides, can be fixed on camera lens the place ahead or rear.
This tunable optical electron density mirror is located at camera lens one side, comprises liquid crystal light valve 3 and is located at liquid crystal light valve control circuit board 4 all around, and control circuit board is provided with the electronic light valve universal circuit, by changing the density that voltage or frequency change liquid crystal light valve.When liquid crystal light valve is done when circular, corresponding control circuit board is circular, when liquid crystal light valve is done squarely, correspondingly control circuit board also is square, the diameter of liquid crystal light valve or the length of side can make it be widely used in video fields such as photography, shooting, film shooting, video monitoring, video conference system more than or equal to 30mm.
As shown in Figure 5, the electron density mirror is fixed on the fixed mount, this fixed mount comprises a fixed head 51, be located at through hole consistent with diameter of lens on the fixed head 52, be located at a projection 53 of fixed head bottom, the fixed head top raises up and forms a boss 54, described fixed head both sides are twice flanging upwards, and the electron density mirror is fixed in the fixed mount by the flanging of the projection of the boss at top, bottom and both sides.
Only in order to illustrate structure of the present utility model, those of ordinary skill in the art can make various deformation and variation to above specific embodiment under design of the present utility model, and these distortion and variation include within protection domain of the present utility model.
Claims (3)
1. tunable optical electron density mirror, it is characterized in that, described tunable optical electron density mirror is located at camera lens one side, comprise liquid crystal light valve and be located at liquid crystal light valve control circuit board all around, described control circuit board is by changing the density that voltage or frequency change liquid crystal light valve, and the diameter of described liquid crystal light valve is more than or equal to 30mm.
2. tunable optical electron density mirror as claimed in claim 1 is characterized in that, described liquid crystal light valve and control circuit board are circular or square.
3. tunable optical electron density mirror as claimed in claim 2, it is characterized in that, also comprise a fixed mount, described fixed mount comprises a fixed head, be located at through hole consistent with diameter of lens on the fixed head, be located at a projection of fixed head bottom, described fixed head top raises up and forms a boss, and described fixed head both sides are twice flanging upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320182045.6U CN203204277U (en) | 2013-04-12 | 2013-04-12 | Dimmable electronic density mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320182045.6U CN203204277U (en) | 2013-04-12 | 2013-04-12 | Dimmable electronic density mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203204277U true CN203204277U (en) | 2013-09-18 |
Family
ID=49148372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320182045.6U Expired - Lifetime CN203204277U (en) | 2013-04-12 | 2013-04-12 | Dimmable electronic density mirror |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203204277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207498A (en) * | 2013-04-12 | 2013-07-17 | 深圳市影歌科技有限公司 | Dimmable electronic pick glass |
-
2013
- 2013-04-12 CN CN201320182045.6U patent/CN203204277U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207498A (en) * | 2013-04-12 | 2013-07-17 | 深圳市影歌科技有限公司 | Dimmable electronic pick glass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180409 Address after: 518000 Shenzhen, Shenzhen City, Guangdong Province, Tai Lang street, Longping community department, nine long army industrial areas, 21 floors from 2 to 4 Patentee after: APUTURE IMAGING INDUSTRIES Co.,Ltd. Address before: 518000 Guangdong, Shenzhen, Futian District, Bagua two road Bagualing Industrial Zone ninth 6 floor 603 Patentee before: APUTURE IMAGING INDUSTRIES Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |