JPS6418117A - Range finder for camera - Google Patents
Range finder for cameraInfo
- Publication number
- JPS6418117A JPS6418117A JP17395487A JP17395487A JPS6418117A JP S6418117 A JPS6418117 A JP S6418117A JP 17395487 A JP17395487 A JP 17395487A JP 17395487 A JP17395487 A JP 17395487A JP S6418117 A JPS6418117 A JP S6418117A
- Authority
- JP
- Japan
- Prior art keywords
- light emission
- distance measurement
- light
- short
- light emitting
- 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.)
- Granted
Links
Landscapes
- Measurement Of Optical Distance (AREA)
- Focusing (AREA)
- Viewfinders (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE:To use a light emitting element which has smaller light emission intensity than an element for long-distance measurement and to accurately measure a short distance by making light emitting elements illuminate selectively by a light emission circuit and outputting light beams for long-distance measurement and short-distance measurement. CONSTITUTION:An infrared light emitting LED 6 as a light emitting element is provided with two light emission parts L1 and L2 at different positions in the direction of a base line A. The light emission part L1 is for the long-distance measurement and the light emission part L2 is for the short-distance measurement; and the light emission intensity of the light emission part L1 is made larger than that of the light emission part L2, which is installed except on the side of a PSD 5. Even reflected light from a subject at a short distance is therefore accurately caught. Consequently, the short distance can accurately be measured.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173954A JPH0738048B2 (en) | 1987-07-14 | 1987-07-14 | Camera rangefinder |
US07/192,719 US4827302A (en) | 1987-05-15 | 1988-05-11 | Distance measurement apparatus for camera |
DE88304321T DE3886811T2 (en) | 1987-05-15 | 1988-05-12 | Distance measuring device for a camera. |
EP88304321A EP0291312B1 (en) | 1987-05-15 | 1988-05-12 | Distance measurement apparatus for camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173954A JPH0738048B2 (en) | 1987-07-14 | 1987-07-14 | Camera rangefinder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6418117A true JPS6418117A (en) | 1989-01-20 |
JPH0738048B2 JPH0738048B2 (en) | 1995-04-26 |
Family
ID=15970134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62173954A Expired - Lifetime JPH0738048B2 (en) | 1987-05-15 | 1987-07-14 | Camera rangefinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0738048B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01250813A (en) * | 1988-03-31 | 1989-10-05 | Olympus Optical Co Ltd | Multipoint distance measuring instrument |
JPH041523U (en) * | 1990-04-17 | 1992-01-08 | ||
JP2008107284A (en) * | 2006-10-27 | 2008-05-08 | Omron Corp | Reflection-type photoelectric sensor |
US9643453B2 (en) | 2010-12-29 | 2017-05-09 | Compagnie Generale Des Etablissements Michelin | Annular structure having multiple reinforcement bands |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129838A (en) * | 1983-01-17 | 1984-07-26 | Canon Inc | Automatic focus photographing device |
JPS60151507A (en) * | 1984-01-18 | 1985-08-09 | Canon Inc | Distance measuring instrument |
-
1987
- 1987-07-14 JP JP62173954A patent/JPH0738048B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129838A (en) * | 1983-01-17 | 1984-07-26 | Canon Inc | Automatic focus photographing device |
JPS60151507A (en) * | 1984-01-18 | 1985-08-09 | Canon Inc | Distance measuring instrument |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01250813A (en) * | 1988-03-31 | 1989-10-05 | Olympus Optical Co Ltd | Multipoint distance measuring instrument |
JPH041523U (en) * | 1990-04-17 | 1992-01-08 | ||
JP2008107284A (en) * | 2006-10-27 | 2008-05-08 | Omron Corp | Reflection-type photoelectric sensor |
US9643453B2 (en) | 2010-12-29 | 2017-05-09 | Compagnie Generale Des Etablissements Michelin | Annular structure having multiple reinforcement bands |
Also Published As
Publication number | Publication date |
---|---|
JPH0738048B2 (en) | 1995-04-26 |
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