JPS58157309U - focus adjustment device - Google Patents
focus adjustment deviceInfo
- Publication number
- JPS58157309U JPS58157309U JP5525682U JP5525682U JPS58157309U JP S58157309 U JPS58157309 U JP S58157309U JP 5525682 U JP5525682 U JP 5525682U JP 5525682 U JP5525682 U JP 5525682U JP S58157309 U JPS58157309 U JP S58157309U
- Authority
- JP
- Japan
- Prior art keywords
- lens system
- focus
- parallel light
- adjustment device
- photographic lens
- 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.)
- Pending
Links
Landscapes
- Focusing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一例の構成図、第２図〜第６図はその
説明のための図、第７図は他の例の構成図である。
１は撮影レンズ、５．９はハーフミラ−１，６゜７．１
０，１２．１３はレンズ、８は赤外線発光 ′器、１１
はスプリットイメージプリズム、１４は赤外線検出器、
１５は制御回路である。FIG. 1 is a block diagram of one example of the present invention, FIGS. 2 to 6 are diagrams for explaining the same, and FIG. 7 is a block diagram of another example. 1 is the photographing lens, 5.9 is the half mirror 1,6°7.1
0,12.13 is a lens, 8 is an infrared light emitter, 11
is a split image prism, 14 is an infrared detector,
15 is a control circuit.
Claims (1)
ズ系と、焦点の調整される撮影レンズ系′とを有し、上
記平行光を鏡を介して上記撮影レンズ系にその光軸に沿
って挿入して被写体に照射すると共に、上記被写体で反
射された上記平行光を上記鏡及び第１のレンズ系を逆方
向に通過させて取り出し、この取り出された光線を上記
発光部と等価の位置に置かれたスプリットイメージ装置
に供給し、このスプリットイメージ装置による像の位置
を検知し、この像に応じて上記撮影レンズ系の焦点を調
整するようにした焦点調整装置。It has a first lens system that converts the luminous flux from the light emitting part into predetermined parallel light, and a photographic lens system whose focus is adjusted, and the optical axis of the parallel light is directed to the photographic lens system through a mirror. At the same time, the parallel light reflected by the object is passed through the mirror and the first lens system in the opposite direction and taken out, and this taken out light beam is equivalent to the light emitting part. A focus adjustment device that is supplied to a split image device placed at a position, detects the position of an image produced by the split image device, and adjusts the focus of the photographic lens system in accordance with this image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5525682U JPS58157309U (en) | 1982-04-16 | 1982-04-16 | focus adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5525682U JPS58157309U (en) | 1982-04-16 | 1982-04-16 | focus adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58157309U true JPS58157309U (en) | 1983-10-20 |
Family
ID=30065845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5525682U Pending JPS58157309U (en) | 1982-04-16 | 1982-04-16 | focus adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58157309U (en) |
-
1982
- 1982-04-16 JP JP5525682U patent/JPS58157309U/en active Pending
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