CN103207498A - Dimmable electronic pick glass - Google Patents
Dimmable electronic pick glass Download PDFInfo
- Publication number
- CN103207498A CN103207498A CN2013101266525A CN201310126652A CN103207498A CN 103207498 A CN103207498 A CN 103207498A CN 2013101266525 A CN2013101266525 A CN 2013101266525A CN 201310126652 A CN201310126652 A CN 201310126652A CN 103207498 A CN103207498 A CN 103207498A
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- Prior art keywords
- liquid crystal
- light valve
- crystal light
- fixed head
- circuit board
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Abstract
The invention discloses a dimmable electronic pick glass. The dimmable electronic pick glass is arranged on one side of a lens and comprises a liquid crystal light valve and a control printed circuit board (PCB) arranged around the liquid crystal light valve, the control PCB changes the density of the liquid crystal light valve through change of the voltage or frequency, and the diameter of the liquid crystal light valve is larger than or equal to 30mm. The dimmable electronic pick glass is high in optical precision, convenient to use and widely applicable to various dimming or control devices.
Description
Technical field
The present invention relates to the auxiliary appliance of photographing, relate 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.
Summary of the invention
The present invention 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 present invention 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 present invention 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
The present invention is described further below in conjunction with drawings and Examples, wherein:
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of another embodiment of the present invention;
Fig. 3 is the position view of one embodiment of the invention;
Fig. 4 is the position view of another embodiment of the present invention;
Fig. 5 is the structural representation of fixed mount of the present invention.
Embodiment
As shown in Figures 1 to 4, the tunable optical electron density mirror 1 that one embodiment of the invention 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 invention, those of ordinary skill in the art can make various deformation and variation to above specific embodiment under design of the present invention, and these distortion and variation include within protection scope of the present invention.
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 |
|---|---|---|---|
| CN2013101266525A CN103207498A (en) | 2013-04-12 | 2013-04-12 | Dimmable electronic pick glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101266525A CN103207498A (en) | 2013-04-12 | 2013-04-12 | Dimmable electronic pick glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103207498A true CN103207498A (en) | 2013-07-17 |
Family
ID=48754767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101266525A Pending CN103207498A (en) | 2013-04-12 | 2013-04-12 | Dimmable electronic pick glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103207498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111367102A (en) * | 2020-05-08 | 2020-07-03 | 康惠（惠州）半导体有限公司 | Vertically-oriented liquid crystal light valve lens assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040183965A1 (en) * | 2003-03-19 | 2004-09-23 | Lundgren Mark A. | Variable aperture stop with no moving parts |
| CN1707344A (en) * | 2004-06-07 | 2005-12-14 | 索尼株式会社 | Imaging device and portable terminal device |
| CN1782845A (en) * | 2004-11-30 | 2006-06-07 | 三星电机株式会社 | Image pick up module with optical element |
| CN201004145Y (en) * | 2006-04-07 | 2008-01-09 | 陈文雷 | Self-adapted stress light lens |
| CN201060341Y (en) * | 2006-07-14 | 2008-05-14 | 陈文雷 | Automatic light filter |
| CN201110922Y (en) * | 2007-08-24 | 2008-09-03 | 比亚迪股份有限公司 | Polymer disperse liquid crystal light valve |
| CN102967957A (en) * | 2012-11-21 | 2013-03-13 | 合肥工业大学 | Low-power-consumption electronic control liquid crystal light valve device capable of regulating transmittivity by self |
| CN203204277U (en) * | 2013-04-12 | 2013-09-18 | 深圳市影歌科技有限公司 | Dimmable electronic density mirror |
-
2013
- 2013-04-12 CN CN2013101266525A patent/CN103207498A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040183965A1 (en) * | 2003-03-19 | 2004-09-23 | Lundgren Mark A. | Variable aperture stop with no moving parts |
| CN1707344A (en) * | 2004-06-07 | 2005-12-14 | 索尼株式会社 | Imaging device and portable terminal device |
| CN1782845A (en) * | 2004-11-30 | 2006-06-07 | 三星电机株式会社 | Image pick up module with optical element |
| CN201004145Y (en) * | 2006-04-07 | 2008-01-09 | 陈文雷 | Self-adapted stress light lens |
| CN201060341Y (en) * | 2006-07-14 | 2008-05-14 | 陈文雷 | Automatic light filter |
| CN201110922Y (en) * | 2007-08-24 | 2008-09-03 | 比亚迪股份有限公司 | Polymer disperse liquid crystal light valve |
| CN102967957A (en) * | 2012-11-21 | 2013-03-13 | 合肥工业大学 | Low-power-consumption electronic control liquid crystal light valve device capable of regulating transmittivity by self |
| CN203204277U (en) * | 2013-04-12 | 2013-09-18 | 深圳市影歌科技有限公司 | Dimmable electronic density mirror |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111367102A (en) * | 2020-05-08 | 2020-07-03 | 康惠（惠州）半导体有限公司 | Vertically-oriented liquid crystal light valve lens assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130717 |