BE675659A - - Google Patents
Info
- Publication number
- BE675659A BE675659A BE675659DA BE675659A BE 675659 A BE675659 A BE 675659A BE 675659D A BE675659D A BE 675659DA BE 675659 A BE675659 A BE 675659A
- Authority
- BE
- Belgium
Links
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
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42999365A | 1965-02-03 | 1965-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE675659A true BE675659A (en17) | 1966-07-27 |
Family
ID=23705609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE675659D BE675659A (en17) | 1965-02-03 | 1966-01-27 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3450883A (en17) |
| BE (1) | BE675659A (en17) |
| CH (1) | CH451552A (en17) |
| DK (1) | DK114584B (en17) |
| GB (1) | GB1131831A (en17) |
| NL (1) | NL6601313A (en17) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1193177A (en) * | 1967-12-14 | 1970-05-28 | Rank Organisation Ltd | Improvements in or relating to Automatic Control Systems |
| US3560647A (en) * | 1968-02-27 | 1971-02-02 | Bell Telephone Labor Inc | Automatic focusing system |
| US3620613A (en) * | 1968-05-10 | 1971-11-16 | Fuji Photo Film Co Ltd | Automatic focusing device for projectors |
| US3571598A (en) * | 1969-12-08 | 1971-03-23 | Mc Donnell Douglas Corp | Automatic focusing means using an analog signal correlator |
| US3635551A (en) * | 1970-05-18 | 1972-01-18 | Gaf Corp | Automatic focusing system for projectors and the like |
| US3639048A (en) * | 1970-07-23 | 1972-02-01 | Eastman Kodak Co | Automatic ranging and focusing projector |
| US3631785A (en) * | 1970-07-30 | 1972-01-04 | Eastman Kodak Co | Automatic focusing device |
| US3708619A (en) * | 1970-10-15 | 1973-01-02 | Goodyear Aerospace Corp | Automatic focusing of optical systems |
| US3783269A (en) * | 1972-06-05 | 1974-01-01 | Honeywell Inc | Automatic focus positioning circuit |
| US3776639A (en) * | 1972-06-05 | 1973-12-04 | Honeywell Inc | Frequency responsive focus detecting apparatus |
| JPS5531445B2 (en17) * | 1972-06-17 | 1980-08-18 | ||
| US4053934A (en) * | 1972-12-29 | 1977-10-11 | Kornreich Philipp G | Measuring the quality of images |
| US3904869A (en) * | 1973-10-09 | 1975-09-09 | Honeywell Inc | Focus detecting apparatus |
| US3906219A (en) * | 1973-10-09 | 1975-09-16 | Honeywell Inc | Focus detecting apparatus |
| US3904870A (en) * | 1973-10-09 | 1975-09-09 | Honeywell Inc | Focus detecting apparatus |
| US3846628A (en) * | 1973-12-06 | 1974-11-05 | Honeywell Inc | Sensitivity balancing apparatus for photo responsive detecting circuits |
| US3846629A (en) * | 1973-12-06 | 1974-11-05 | Honeywell Inc | Sensitivity balancing apparatus for photo responsive detecting circuits |
| US3860935A (en) * | 1973-12-19 | 1975-01-14 | Honeywell Inc | Auto focus camera |
| US4002899A (en) * | 1974-12-04 | 1977-01-11 | Honeywell Inc. | Focus detecting apparatus |
| US3958117A (en) * | 1975-07-15 | 1976-05-18 | Honeywell Inc. | Distance determining and automatic focusing apparatus |
| US4103152A (en) * | 1976-06-29 | 1978-07-25 | Honeywell Inc. | Distance determining and automatic focusing apparatus with false peak discrimination |
| US4080531A (en) * | 1976-06-29 | 1978-03-21 | Honeywell Inc. | Single pass distance determining and automatic focusing apparatus with separately adjusted optical element |
| US4184968A (en) * | 1978-02-13 | 1980-01-22 | Honeywell Inc. | Auto focus system |
| US4470676A (en) * | 1978-07-28 | 1984-09-11 | Canon Kabushiki Kaisha | Focus detecting device |
| US4352545A (en) * | 1979-02-13 | 1982-10-05 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera focus detecting device |
| US4349254A (en) * | 1979-02-13 | 1982-09-14 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera focus detecting device |
| JPS63316838A (ja) * | 1987-06-19 | 1988-12-26 | Minolta Camera Co Ltd | 拡大投影装置における自動焦点調節装置 |
| JP2555611B2 (ja) * | 1987-06-26 | 1996-11-20 | ミノルタ株式会社 | マイクロ画像処理装置 |
| US5210565A (en) * | 1991-06-21 | 1993-05-11 | Eastman Kodak Company | Oscillating pupil autofocus method and apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL181528B (nl) * | 1952-09-22 | Sumitomo Electric Industries | Inrichting voor het meten van een spanning of van een elektrisch veld met gebruikmaking van licht. | |
| DE1447450A1 (de) * | 1963-06-14 | 1968-10-31 | Agfa Ag | Entfernungsmess- oder Steuervorrichtung |
-
1965
- 1965-02-03 US US429993A patent/US3450883A/en not_active Expired - Lifetime
-
1966
- 1966-01-27 CH CH109366A patent/CH451552A/fr unknown
- 1966-01-27 BE BE675659D patent/BE675659A/xx unknown
- 1966-02-01 GB GB4338/66A patent/GB1131831A/en not_active Expired
- 1966-02-02 NL NL6601313A patent/NL6601313A/xx unknown
- 1966-02-03 DK DK55066AA patent/DK114584B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6601313A (en17) | 1966-08-04 |
| DK114584B (da) | 1969-07-14 |
| GB1131831A (en) | 1968-10-30 |
| CH451552A (fr) | 1968-05-15 |
| US3450883A (en) | 1969-06-17 |