JPS6413123A - Projecting device for auto focus - Google Patents
Projecting device for auto focusInfo
- Publication number
- JPS6413123A JPS6413123A JP16844087A JP16844087A JPS6413123A JP S6413123 A JPS6413123 A JP S6413123A JP 16844087 A JP16844087 A JP 16844087A JP 16844087 A JP16844087 A JP 16844087A JP S6413123 A JPS6413123 A JP S6413123A
- Authority
- JP
- Japan
- Prior art keywords
- light
- projected
- projection
- tungsten lamp
- light emission
- 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
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
PURPOSE:To effectively utilize a light emission as a projection light at a low cost by using the light emission itself of a longitudinal tungsten lamp being a light source, as a projection pattern. CONSTITUTION:A tungsten lamp 12 is formed by providing a tungsten filament 12B in the longitudinal direction in a thin pipe 12A, constituted in a longitudinal shape as a whole, and a light beam emitted from the tungsten lamp 12 is projected with an expanse of a prescribed projection light angle alpha through a projection lens 14 and a filter 16. That is, said light is projected so as to irradiate an object to be photographed, in a focus detectable range L on an optical axis of a photographic lens 20 of a camera. In such a way, as for the projected light, the light emission itself of the tungsten lamp 12 is projected onto the surface of the object to be photographed, as a projection pattern 18. In such a way, the light beam can be utilized effectively at a low cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62168440A JPH0727111B2 (en) | 1987-07-06 | 1987-07-06 | Projector for auto focus of camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62168440A JPH0727111B2 (en) | 1987-07-06 | 1987-07-06 | Projector for auto focus of camera |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6413123A true JPS6413123A (en) | 1989-01-18 |
JPH0727111B2 JPH0727111B2 (en) | 1995-03-29 |
Family
ID=15868156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62168440A Expired - Fee Related JPH0727111B2 (en) | 1987-07-06 | 1987-07-06 | Projector for auto focus of camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0727111B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5374343A (en) * | 1992-05-15 | 1994-12-20 | Anelva Corporation | Magnetron cathode assembly |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62257010A (en) * | 1986-04-30 | 1987-11-09 | Toshiba Corp | Detection of height |
-
1987
- 1987-07-06 JP JP62168440A patent/JPH0727111B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62257010A (en) * | 1986-04-30 | 1987-11-09 | Toshiba Corp | Detection of height |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5374343A (en) * | 1992-05-15 | 1994-12-20 | Anelva Corporation | Magnetron cathode assembly |
Also Published As
Publication number | Publication date |
---|---|
JPH0727111B2 (en) | 1995-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |