JPH0290810U - - Google Patents
Info
- Publication number
- JPH0290810U JPH0290810U JP1988169429U JP16942988U JPH0290810U JP H0290810 U JPH0290810 U JP H0290810U JP 1988169429 U JP1988169429 U JP 1988169429U JP 16942988 U JP16942988 U JP 16942988U JP H0290810 U JPH0290810 U JP H0290810U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- distance
- image position
- level
- position signal
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- 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
- G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
- G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
- Measurement Of Optical Distance (AREA)
- Focusing (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988169429U JPH0714970Y2 (ja) | 1988-12-29 | 1988-12-29 | 自動焦点調整装置 |
US07/458,765 US5128529A (en) | 1988-12-29 | 1989-12-29 | Autofocusing device with improved distance focusing accuracy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988169429U JPH0714970Y2 (ja) | 1988-12-29 | 1988-12-29 | 自動焦点調整装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0290810U true JPH0290810U (US20100223739A1-20100909-C00005.png) | 1990-07-18 |
JPH0714970Y2 JPH0714970Y2 (ja) | 1995-04-10 |
Family
ID=15886432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988169429U Expired - Lifetime JPH0714970Y2 (ja) | 1988-12-29 | 1988-12-29 | 自動焦点調整装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5128529A (US20100223739A1-20100909-C00005.png) |
JP (1) | JPH0714970Y2 (US20100223739A1-20100909-C00005.png) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3026030B2 (ja) * | 1991-07-13 | 2000-03-27 | 株式会社リコー | カメラの測距装置 |
DE69227414T2 (de) * | 1991-07-30 | 1999-05-20 | Canon K.K., Tokio/Tokyo | Entfernungsmessvorrichtung |
JP3223306B2 (ja) * | 1992-11-30 | 2001-10-29 | セイコープレシジョン株式会社 | カメラ用測距装置 |
JPH06214149A (ja) * | 1993-01-14 | 1994-08-05 | Nikon Corp | 測距装置 |
US5572012A (en) * | 1993-06-16 | 1996-11-05 | Seiko Precision Inc. | Distance measuring device for camera using integration of reflected light |
JP3509282B2 (ja) * | 1994-05-24 | 2004-03-22 | セイコープレシジョン株式会社 | カメラ用測距装置 |
JP3337868B2 (ja) * | 1995-05-26 | 2002-10-28 | セイコープレシジョン株式会社 | カメラ用測距装置 |
US5814808A (en) * | 1995-08-28 | 1998-09-29 | Matsushita Electric Works, Ltd. | Optical displacement measuring system using a triangulation including a processing of position signals in a time sharing manner |
JP2000162493A (ja) * | 1998-11-25 | 2000-06-16 | Fuji Photo Optical Co Ltd | 測距装置 |
US6673580B2 (en) | 2000-10-27 | 2004-01-06 | Genentech, Inc. | Identification and modification of immunodominant epitopes in polypeptides |
TWI265368B (en) * | 2005-03-22 | 2006-11-01 | Compal Electronics Inc | Method of using flash light pre-flash for focus |
US20230159067A1 (en) * | 2021-11-22 | 2023-05-25 | Holland, L.P. | Railcar Uncoupling Lever Apparatus and Methods of Using the Same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54126023A (en) * | 1978-03-23 | 1979-09-29 | Canon Inc | Optical device |
JPS54140532A (en) * | 1978-04-23 | 1979-10-31 | Canon Inc | Automatic focus adjustor |
DE3216246A1 (de) * | 1981-05-01 | 1982-12-02 | Ricoh Co., Ltd., Tokyo | Entfernungsmesseinrichtung |
JPS5810605A (ja) * | 1981-07-10 | 1983-01-21 | Canon Inc | 距離測定装置 |
JPS59160108A (ja) * | 1983-03-02 | 1984-09-10 | Canon Inc | 光半導体位置検出素子の信号処理回路 |
US4720723A (en) * | 1983-06-24 | 1988-01-19 | Canon Kabushiki Kaisha | Distance measuring device |
US4621292A (en) * | 1983-10-19 | 1986-11-04 | Matsushita Electric Industrial Co., Ltd. | Automatic focusing device for a video camera |
US4773751A (en) * | 1984-03-09 | 1988-09-27 | Minolta Camera Kabushiki Kaisha | Infinite level setting device for a distance measuring device |
US4673274A (en) * | 1984-09-18 | 1987-06-16 | Matsushita Electric Industrial Co., Ltd. | Automatic focusing apparatus for camera |
JPS61219916A (ja) * | 1985-03-27 | 1986-09-30 | Kowa Co | 自動焦点調節装置 |
US4758082A (en) * | 1985-04-17 | 1988-07-19 | Canon Kabushiki Kaisha | Distance detection apparatus |
JPS62215913A (ja) * | 1986-03-18 | 1987-09-22 | Nippon Kogaku Kk <Nikon> | 自動焦点検出回路 |
-
1988
- 1988-12-29 JP JP1988169429U patent/JPH0714970Y2/ja not_active Expired - Lifetime
-
1989
- 1989-12-29 US US07/458,765 patent/US5128529A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5128529A (en) | 1992-07-07 |
JPH0714970Y2 (ja) | 1995-04-10 |