DE2754989A1 - Automatische fokussiereinrichtung - Google Patents
Automatische fokussiereinrichtungInfo
- Publication number
- DE2754989A1 DE2754989A1 DE19772754989 DE2754989A DE2754989A1 DE 2754989 A1 DE2754989 A1 DE 2754989A1 DE 19772754989 DE19772754989 DE 19772754989 DE 2754989 A DE2754989 A DE 2754989A DE 2754989 A1 DE2754989 A1 DE 2754989A1
- Authority
- DE
- Germany
- Prior art keywords
- lens
- scanner
- detector
- scanning
- optical
- 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.)
- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 claims description 44
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 102100037631 Centrin-2 Human genes 0.000 claims 1
- 101000880516 Homo sapiens Centrin-2 Proteins 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method 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
- G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
- G02B7/305—Systems for automatic generation of focusing signals using parallactic triangle with a base line using a scanner
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
- Facsimile Scanning Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14775776A JPS5372617A (en) | 1976-12-10 | 1976-12-10 | Automatic focal point adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2754989A1 true DE2754989A1 (de) | 1978-06-22 |
Family
ID=15437458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772754989 Withdrawn DE2754989A1 (de) | 1976-12-10 | 1977-12-09 | Automatische fokussiereinrichtung |
Country Status (4)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS577508A (en) * | 1980-06-16 | 1982-01-14 | Seiko Koki Kk | Distance detector |
| US4484069A (en) * | 1981-10-15 | 1984-11-20 | St. Regis Paper Company | Apparatus and method for sensing distance |
| JPH05142460A (ja) * | 1991-07-11 | 1993-06-11 | Nikon Corp | オートフオーカス用レンズ鏡筒 |
| JPH05248860A (ja) * | 1992-03-03 | 1993-09-28 | Hitachi Ltd | 自動焦点調節装置 |
| KR101676402B1 (ko) * | 2010-05-31 | 2016-11-29 | 삼성전자주식회사 | 휴대용 영상 투사 장치를 위한 포커스 조절 장치 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1196771A (en) | 1966-05-31 | 1970-07-01 | Eastman Kodak Co | Range Finders. |
| DE2126178B2 (de) | 1970-05-27 | 1978-11-30 | Canon K.K., Tokio | Automatische Scharfeinstellvorrichtung |
| JPS5616574Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1976-03-30 | 1981-04-17 | ||
| US4123765A (en) * | 1976-04-23 | 1978-10-31 | Nihon Beru-Haueru Kabushiki Kaisha | Automatic focus adjusting device |
| US4059757A (en) * | 1976-10-01 | 1977-11-22 | Honeywell Inc. | Focus system for movie cameras |
| US4059756A (en) * | 1976-10-01 | 1977-11-22 | Honeywell Inc. | Focus control system with dual scan |
| US4021821A (en) * | 1976-10-01 | 1977-05-03 | Honeywell Inc. | Automatic focus control motive means |
| US4091275A (en) * | 1976-10-07 | 1978-05-23 | Honeywell Inc. | Automatic focus system with oscillation inhibit circuit |
| US4085320A (en) * | 1976-10-07 | 1978-04-18 | Honeywell Inc. | Automatic focus system with loss of correlation inhibit |
-
1976
- 1976-12-10 JP JP14775776A patent/JPS5372617A/ja active Granted
-
1977
- 1977-12-09 DE DE19772754989 patent/DE2754989A1/de not_active Withdrawn
- 1977-12-12 GB GB51536/77A patent/GB1593395A/en not_active Expired
-
1979
- 1979-07-12 US US06/057,069 patent/US4303320A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS576085B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-02-03 |
| US4303320A (en) | 1981-12-01 |
| JPS5372617A (en) | 1978-06-28 |
| GB1593395A (en) | 1981-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OGA | New person/name/address of the applicant | ||
| 8139 | Disposal/non-payment of the annual fee |