JPS57157224A - Display device for focusing of camera - Google Patents
Display device for focusing of cameraInfo
- Publication number
- JPS57157224A JPS57157224A JP56042715A JP4271581A JPS57157224A JP S57157224 A JPS57157224 A JP S57157224A JP 56042715 A JP56042715 A JP 56042715A JP 4271581 A JP4271581 A JP 4271581A JP S57157224 A JPS57157224 A JP S57157224A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- focusing
- exclusive
- outputted
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
PURPOSE:To take out easily a focusing display signal to drive a display member consisting of a sound producing element, a light emitting element, or the like, by delaying the state signal outputted from a focus detecting device in a delay circuit and comparing this delayed signal with the original state signal. CONSTITUTION:A focus detecting device 2 receives an output signal from a light receiving part 1 and inputs a state signal S1 not only to a delay circuit 5 but also to one input terminal of an exclusive OR circuit 6 as a detecting circuit. A delay signal S2 outputted from the delay circuit 5 is inputted to the other input terminal of the exclusive OR circuit 6, and a focusing display signal S3 outputted from the exclusive OR circuit 6 is inputted to a display member consisting of a sound producing element or a light emitting element to drive the display member, thus displaying the focusing state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56042715A JPS57157224A (en) | 1981-03-23 | 1981-03-23 | Display device for focusing of camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56042715A JPS57157224A (en) | 1981-03-23 | 1981-03-23 | Display device for focusing of camera |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57157224A true JPS57157224A (en) | 1982-09-28 |
JPH0147763B2 JPH0147763B2 (en) | 1989-10-16 |
Family
ID=12643759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56042715A Granted JPS57157224A (en) | 1981-03-23 | 1981-03-23 | Display device for focusing of camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57157224A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0762751A (en) * | 1993-08-25 | 1995-03-07 | Misaki:Kk | Anchor bolt |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6632043B1 (en) * | 2019-03-13 | 2020-01-15 | Necプラットフォームズ株式会社 | Telephone device and method of controlling telephone device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55111925A (en) * | 1979-02-20 | 1980-08-29 | Ricoh Co Ltd | Focusing point signal generator |
-
1981
- 1981-03-23 JP JP56042715A patent/JPS57157224A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55111925A (en) * | 1979-02-20 | 1980-08-29 | Ricoh Co Ltd | Focusing point signal generator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0762751A (en) * | 1993-08-25 | 1995-03-07 | Misaki:Kk | Anchor bolt |
Also Published As
Publication number | Publication date |
---|---|
JPH0147763B2 (en) | 1989-10-16 |
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