FR2292221B1 - - Google Patents
Info
- Publication number
- FR2292221B1 FR2292221B1 FR7535329A FR7535329A FR2292221B1 FR 2292221 B1 FR2292221 B1 FR 2292221B1 FR 7535329 A FR7535329 A FR 7535329A FR 7535329 A FR7535329 A FR 7535329A FR 2292221 B1 FR2292221 B1 FR 2292221B1
- Authority
- FR
- France
- 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
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
- 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
- G03B7/091—Digital circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1009—Calibration
- H03M1/1033—Calibration over the full range of the converter, e.g. for correcting differential non-linearity
- H03M1/1057—Calibration over the full range of the converter, e.g. for correcting differential non-linearity by trimming, i.e. by individually adjusting at least part of the quantisation value generators or stages to their nominal values
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49132790A JPS585371B2 (ja) | 1974-11-20 | 1974-11-20 | ソツコウヒヨウジカイロ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2292221A1 FR2292221A1 (fr) | 1976-06-18 |
| FR2292221B1 true FR2292221B1 (US08124630-20120228-C00102.png) | 1977-12-16 |
Family
ID=15089596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7535329A Granted FR2292221A1 (fr) | 1974-11-20 | 1975-11-19 | Dispositif de mesure de lumiere pour posemetre |
Country Status (5)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914739Y2 (ja) * | 1976-09-07 | 1984-05-01 | 旭光学工業株式会社 | 露出計におけるデジタル表示回路 |
| JPS5366939U (US08124630-20120228-C00102.png) * | 1976-11-08 | 1978-06-05 | ||
| US4356393A (en) * | 1980-05-29 | 1982-10-26 | Banner Engineering Corp. | Alignment indicator for photoelectric scanners |
| JPS5745721A (en) * | 1980-09-01 | 1982-03-15 | Minolta Camera Co Ltd | Analog-to-digital converter |
| US4606686A (en) * | 1983-11-10 | 1986-08-19 | Weaver Allen J | Tool indexing device |
| GB2186380B (en) * | 1986-02-11 | 1988-12-14 | Jit Yong Lim | Domestic weather information display apparatus |
| GB2389260B (en) * | 2002-05-31 | 2006-03-29 | Leo Electron Microscopy Ltd | Transresistance amplifier for a charged particle detector |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3724955A (en) * | 1970-07-07 | 1973-04-03 | Yashica Co Ltd | Discrimination circuit of physical quantities |
| US3836262A (en) * | 1971-07-07 | 1974-09-17 | Minolta Camera Kk | Indicator circuit |
| FR2157761B3 (US08124630-20120228-C00102.png) * | 1971-10-29 | 1974-06-21 | Safare Sa | |
| JPS5312595Y2 (US08124630-20120228-C00102.png) * | 1972-08-31 | 1978-04-05 | ||
| JPS5433151B2 (US08124630-20120228-C00102.png) * | 1973-04-12 | 1979-10-18 | ||
| US3990799A (en) * | 1974-01-14 | 1976-11-09 | Minolta Camera Kabushiki Kaisha | Digital exposure meter |
| US3959791A (en) * | 1974-04-04 | 1976-05-25 | Yashica Co., Ltd. | Digital display systems |
-
1974
- 1974-11-20 JP JP49132790A patent/JPS585371B2/ja not_active Expired
-
1975
- 1975-11-04 US US05/628,654 patent/US4061431A/en not_active Expired - Lifetime
- 1975-11-11 GB GB46575/75A patent/GB1531275A/en not_active Expired
- 1975-11-19 FR FR7535329A patent/FR2292221A1/fr active Granted
- 1975-11-19 DE DE2551960A patent/DE2551960C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5158986A (US08124630-20120228-C00102.png) | 1976-05-22 |
| DE2551960B2 (de) | 1980-09-11 |
| DE2551960A1 (de) | 1976-05-26 |
| JPS585371B2 (ja) | 1983-01-31 |
| GB1531275A (en) | 1978-11-08 |
| US4061431A (en) | 1977-12-06 |
| DE2551960C3 (de) | 1981-09-10 |
| FR2292221A1 (fr) | 1976-06-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |