KR960008921U - Pulse width modulated electronic aperture - Google Patents
Pulse width modulated electronic apertureInfo
- Publication number
- KR960008921U KR960008921U KR2019940019951U KR19940019951U KR960008921U KR 960008921 U KR960008921 U KR 960008921U KR 2019940019951 U KR2019940019951 U KR 2019940019951U KR 19940019951 U KR19940019951 U KR 19940019951U KR 960008921 U KR960008921 U KR 960008921U
- Authority
- KR
- South Korea
- Prior art keywords
- pulse width
- width modulated
- electronic aperture
- modulated electronic
- aperture
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/085—Analogue circuits for control of aperture
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019940019951U KR200150090Y1 (en) | 1994-08-08 | 1994-08-08 | Electronic iris of puls width modulation type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019940019951U KR200150090Y1 (en) | 1994-08-08 | 1994-08-08 | Electronic iris of puls width modulation type |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960008921U true KR960008921U (en) | 1996-03-16 |
KR200150090Y1 KR200150090Y1 (en) | 1999-07-01 |
Family
ID=19390292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019940019951U KR200150090Y1 (en) | 1994-08-08 | 1994-08-08 | Electronic iris of puls width modulation type |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR200150090Y1 (en) |
-
1994
- 1994-08-08 KR KR2019940019951U patent/KR200150090Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR200150090Y1 (en) | 1999-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 20070322 Year of fee payment: 9 |
|
LAPS | Lapse due to unpaid annual fee |