CA1131970A - Camera having too close/too far indication - Google Patents
Camera having too close/too far indicationInfo
- Publication number
- CA1131970A CA1131970A CA326,334A CA326334A CA1131970A CA 1131970 A CA1131970 A CA 1131970A CA 326334 A CA326334 A CA 326334A CA 1131970 A CA1131970 A CA 1131970A
- Authority
- CA
- Canada
- Prior art keywords
- camera
- subject
- distance
- range
- accordance
- 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
Links
- 238000005286 illumination Methods 0.000 claims abstract description 28
- 230000004044 response Effects 0.000 claims description 10
- 230000002401 inhibitory effect Effects 0.000 claims description 4
- 230000000875 corresponding effect Effects 0.000 claims 10
- 230000007246 mechanism Effects 0.000 abstract description 19
- 238000010586 diagram Methods 0.000 description 11
- 230000000977 initiatory effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229940094070 ambien Drugs 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- ZAFYATHCZYHLPB-UHFFFAOYSA-N zolpidem Chemical compound N1=C2C=CC(C)=CN2C(CC(=O)N(C)C)=C1C1=CC=C(C)C=C1 ZAFYATHCZYHLPB-UHFFFAOYSA-N 0.000 description 1
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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/40—Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Stroboscope Apparatuses (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US89996278A | 1978-04-25 | 1978-04-25 | |
| US899,962 | 1978-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1131970A true CA1131970A (en) | 1982-09-21 |
Family
ID=25411780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA326,334A Expired CA1131970A (en) | 1978-04-25 | 1979-04-25 | Camera having too close/too far indication |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5511277A (ja) |
| AT (1) | AT374011B (ja) |
| AU (1) | AU527169B2 (ja) |
| CA (1) | CA1131970A (ja) |
| CH (1) | CH649635A5 (ja) |
| DE (1) | DE2916571A1 (ja) |
| FR (1) | FR2424562A1 (ja) |
| GB (1) | GB2020051B (ja) |
| IT (1) | IT1112595B (ja) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6064336A (ja) * | 1983-09-19 | 1985-04-12 | Fuji Photo Film Co Ltd | カメラのファインダ表示装置 |
| JPS6243090A (ja) * | 1985-08-19 | 1987-02-25 | 日本特殊陶業株式会社 | 内燃機関用点火プラグ |
| US4754296A (en) * | 1985-11-21 | 1988-06-28 | Polaroid Corporation | Method of and apparatus for displaying alphanumeric range in camera viewfinder |
| US5384617A (en) * | 1988-06-30 | 1995-01-24 | Asahi Kogaku Kogyo Kabushiki Kaisha | Exposure control system of a camera having an interval mode |
| US5241334A (en) * | 1988-06-30 | 1993-08-31 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronically controlled camera having mode changing capability |
| USRE36252E (en) * | 1988-06-30 | 1999-07-13 | Asahi Kogaku Kogyo Kabushiki Kaisha | Autofocus camera |
| US5119121A (en) * | 1988-06-30 | 1992-06-02 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronically controlled camera having macro and normal operational modes |
| FR2633733B1 (fr) * | 1988-06-30 | 1994-05-13 | Asahi Kogaku Kogyo Kk | Appareil photographique a commande electronique ayant des modes de fonctionnement macro et normal |
| US5235374A (en) * | 1988-06-30 | 1993-08-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronically controlled camera having macro and normal operational modes |
| US5280320A (en) * | 1988-06-30 | 1994-01-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronically controlled camera having internal photographing mode and display |
| US5136320A (en) * | 1988-06-30 | 1992-08-04 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronically controlled camera having macro and normal operational modes |
| US5291232A (en) * | 1988-06-30 | 1994-03-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Device for controlling an operation of a movable member |
| US5146259A (en) * | 1988-06-30 | 1992-09-08 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronically controlled camera including automatic shutter speed changing apparatus |
| JP2536236Y2 (ja) * | 1988-06-30 | 1997-05-21 | 旭光学工業株式会社 | カメラの表示装置およびカメラの検査治具 |
| JPH0215248A (ja) * | 1988-07-04 | 1990-01-18 | Seikosha Co Ltd | カメラの自動焦点調節装置 |
| JP2754363B2 (ja) * | 1995-09-28 | 1998-05-20 | 富士写真フイルム株式会社 | カメラのファインダ表示装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3886567A (en) * | 1972-08-28 | 1975-05-27 | Canon Kk | Optical system position controlling device |
| US3917395A (en) * | 1973-06-28 | 1975-11-04 | Honeywell Inc | Control circuit for photographic apparatus |
| CA1099554A (en) * | 1976-10-04 | 1981-04-21 | Polaroid Corporation | Automatic range finding and focussing camera |
-
1979
- 1979-04-19 GB GB7913647A patent/GB2020051B/en not_active Expired
- 1979-04-24 CH CH3867/79A patent/CH649635A5/de not_active IP Right Cessation
- 1979-04-24 DE DE19792916571 patent/DE2916571A1/de active Granted
- 1979-04-24 JP JP5080879A patent/JPS5511277A/ja active Pending
- 1979-04-24 AU AU46441/79A patent/AU527169B2/en not_active Expired
- 1979-04-24 IT IT7922113A patent/IT1112595B/it active
- 1979-04-25 FR FR7910478A patent/FR2424562A1/fr active Granted
- 1979-04-25 AT AT0310179A patent/AT374011B/de not_active IP Right Cessation
- 1979-04-25 CA CA326,334A patent/CA1131970A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2424562B1 (ja) | 1984-04-06 |
| AU4644179A (en) | 1979-11-01 |
| AU527169B2 (en) | 1983-02-17 |
| DE2916571A1 (de) | 1980-01-24 |
| JPS5511277A (en) | 1980-01-26 |
| ATA310179A (de) | 1983-07-15 |
| GB2020051B (en) | 1982-06-30 |
| AT374011B (de) | 1984-03-12 |
| IT7922113A0 (it) | 1979-04-24 |
| IT1112595B (it) | 1986-01-20 |
| DE2916571C2 (ja) | 1990-03-08 |
| GB2020051A (en) | 1979-11-07 |
| FR2424562A1 (fr) | 1979-11-23 |
| CH649635A5 (de) | 1985-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |