IE47956B1 - Apparatus having automatic and manual ranging means - Google Patents
Apparatus having automatic and manual ranging meansInfo
- Publication number
- IE47956B1 IE47956B1 IE197278A IE197278A IE47956B1 IE 47956 B1 IE47956 B1 IE 47956B1 IE 197278 A IE197278 A IE 197278A IE 197278 A IE197278 A IE 197278A IE 47956 B1 IE47956 B1 IE 47956B1
- Authority
- IE
- Ireland
- Prior art keywords
- lens
- cover
- camera
- focus
- gear
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000001419 dependent effect Effects 0.000 claims 2
- 239000002783 friction material Substances 0.000 claims 2
- 238000009877 rendering Methods 0.000 claims 1
- 230000004888 barrier function Effects 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 description 9
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- G02B7/40—Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Lens Barrels (AREA)
- Shutters For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83858177A | 1977-10-03 | 1977-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE781972L IE781972L (en) | 1979-04-03 |
| IE47956B1 true IE47956B1 (en) | 1984-08-08 |
Family
ID=25277484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE197278A IE47956B1 (en) | 1977-10-03 | 1978-10-02 | Apparatus having automatic and manual ranging means |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5461525A (enrdf_load_stackoverflow) |
| CA (1) | CA1122454A (enrdf_load_stackoverflow) |
| DE (1) | DE2842851B2 (enrdf_load_stackoverflow) |
| FR (1) | FR2404868A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2005852B (enrdf_load_stackoverflow) |
| IE (1) | IE47956B1 (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5573026A (en) * | 1978-11-25 | 1980-06-02 | Minolta Camera Co Ltd | Automatic-manual focus controllable lens-barrel |
| JPS5573025A (en) * | 1978-11-25 | 1980-06-02 | Minolta Camera Co Ltd | Changeover device of automatic-manual focus controllable lens-barrel |
| JPS5619033A (en) * | 1979-07-25 | 1981-02-23 | Canon Inc | Automatic focus control unit |
| JPS5648620A (en) * | 1979-09-28 | 1981-05-01 | Nippon Seimitsu Kogyo Kk | Automatic focus controlling mechanism of camera |
| JPS62201738U (enrdf_load_stackoverflow) * | 1986-06-13 | 1987-12-23 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH400602A (de) * | 1961-07-29 | 1965-10-15 | Agfa Ag | Objektiv mit veränderbarer Brennweite, mit einer Vorrichtung zur wahlweisen Brennweitenverstellung von Hand und durch einen Motor |
| US3522764A (en) * | 1968-03-25 | 1970-08-04 | Polaroid Corp | Rangefinding and focusing system for photographic cameras and the like |
-
1978
- 1978-09-07 CA CA310,815A patent/CA1122454A/en not_active Expired
- 1978-10-02 JP JP12142078A patent/JPS5461525A/ja active Granted
- 1978-10-02 IE IE197278A patent/IE47956B1/en not_active IP Right Cessation
- 1978-10-02 GB GB7838900A patent/GB2005852B/en not_active Expired
- 1978-10-02 DE DE19782842851 patent/DE2842851B2/de active Granted
- 1978-10-03 FR FR7828216A patent/FR2404868A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2005852B (en) | 1982-03-17 |
| JPS5751084B2 (enrdf_load_stackoverflow) | 1982-10-30 |
| IE781972L (en) | 1979-04-03 |
| FR2404868A1 (fr) | 1979-04-27 |
| GB2005852A (en) | 1979-04-25 |
| JPS5461525A (en) | 1979-05-17 |
| DE2842851C3 (enrdf_load_stackoverflow) | 1980-07-17 |
| DE2842851A1 (de) | 1979-04-05 |
| DE2842851B2 (de) | 1979-10-31 |
| CA1122454A (en) | 1982-04-27 |
| FR2404868B1 (enrdf_load_stackoverflow) | 1984-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |