JPH0332265B2 - - Google Patents
Info
- Publication number
- JPH0332265B2 JPH0332265B2 JP57071809A JP7180982A JPH0332265B2 JP H0332265 B2 JPH0332265 B2 JP H0332265B2 JP 57071809 A JP57071809 A JP 57071809A JP 7180982 A JP7180982 A JP 7180982A JP H0332265 B2 JPH0332265 B2 JP H0332265B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- signal
- distance
- subject
- comparison
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 79
- 230000008569 process Effects 0.000 claims description 61
- 238000005259 measurement Methods 0.000 claims description 32
- 238000001514 detection method Methods 0.000 claims description 18
- 230000004913 activation Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 13
- 230000010355 oscillation Effects 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/671—Focus control based on electronic image sensor signals in combination with active ranging signals, e.g. using light or sound signals emitted toward objects
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
- Measurement Of Optical Distance (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57071809A JPS58188964A (ja) | 1982-04-28 | 1982-04-28 | 自動焦点調節方法および同調節装置 |
| US06/488,162 US4531157A (en) | 1982-04-28 | 1983-04-25 | Method and apparatus for automatic focusing in video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57071809A JPS58188964A (ja) | 1982-04-28 | 1982-04-28 | 自動焦点調節方法および同調節装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58188964A JPS58188964A (ja) | 1983-11-04 |
| JPH0332265B2 true JPH0332265B2 (en]) | 1991-05-10 |
Family
ID=13471257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57071809A Granted JPS58188964A (ja) | 1982-04-28 | 1982-04-28 | 自動焦点調節方法および同調節装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4531157A (en]) |
| JP (1) | JPS58188964A (en]) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803507A (en) * | 1982-12-07 | 1989-02-07 | Canon Kabushiki Kaisha | Automatic focusing device |
| US4695893A (en) * | 1984-02-21 | 1987-09-22 | West Electric Company, Ltd. | Automatic focusing apparatus |
| US5031049A (en) * | 1984-05-25 | 1991-07-09 | Canon Kabushiki Kaisha | Automatic object image follow-up device |
| JPH0654366B2 (ja) * | 1985-05-20 | 1994-07-20 | ウエスト電気株式会社 | ズ−ミング方法およびズ−ミング装置 |
| US5576529A (en) * | 1986-08-08 | 1996-11-19 | Norand Technology Corporation | Hand-held optically readable information set reader focus with operation over a range of distances |
| US5969321A (en) * | 1986-08-08 | 1999-10-19 | Norand Corporation | Hand-held optically readable information set reader with operation over a range of distances |
| US5640001A (en) * | 1986-08-08 | 1997-06-17 | Norand Technology Corporation | Hand-held instant bar code reader having automatic focus control for operation over a range of distances |
| JPH0774856B2 (ja) * | 1986-10-16 | 1995-08-09 | オリンパス光学工業株式会社 | 自動焦点調節方法 |
| JP2540827B2 (ja) * | 1986-12-12 | 1996-10-09 | 株式会社ニコン | 自動焦点調節装置 |
| US4977457A (en) * | 1988-05-10 | 1990-12-11 | Canon Kabushiki Kaisha | Autofocus device for determining an in-focus and real in-focus state |
| US5227828A (en) * | 1988-10-18 | 1993-07-13 | Asahi Kogaku Kogyo Kabushiki Kaisha | Automatic focusing device for camera lens |
| JPH04348329A (ja) * | 1991-05-27 | 1992-12-03 | Canon Inc | カメラの画像振れ防止装置 |
| US6150009A (en) * | 1998-08-07 | 2000-11-21 | Surface Technologies, Inc. | Decorative structural panel |
| TW523635B (en) * | 2002-03-28 | 2003-03-11 | Asia Optical Co Inc | Camera with ranging function |
| US7149423B2 (en) * | 2002-04-03 | 2006-12-12 | Fujinon Corporation | Lens apparatus diagnostic system, diagnostic program, record medium, lens diagnostic system and controller diagnostic system |
| US7801427B2 (en) * | 2005-09-12 | 2010-09-21 | Nokia Corporation | Adjustment of shooting parameters in dependence of motion in a scene |
| CN105323481B (zh) * | 2015-10-15 | 2018-11-20 | 广东欧珀移动通信有限公司 | 一种基于超声波的拍照方法及装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2738804C2 (de) * | 1977-08-29 | 1983-10-20 | Canon Inc., Tokyo | Einrichtung zum Erkennen der Relativbewegung zwischen einem Objekt und dieser Vorrichtung |
| US4264161A (en) * | 1977-10-12 | 1981-04-28 | Canon Kabushiki Kaisha | Motion detecting device in exposure control system for optical instruments |
| US4294531A (en) * | 1978-04-25 | 1981-10-13 | Polaroid Corporation | Auto-focus movie camera |
| US4178087A (en) * | 1978-10-02 | 1979-12-11 | Polaroid Corporation | Autofocus movie camera having focus correction means |
-
1982
- 1982-04-28 JP JP57071809A patent/JPS58188964A/ja active Granted
-
1983
- 1983-04-25 US US06/488,162 patent/US4531157A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58188964A (ja) | 1983-11-04 |
| US4531157A (en) | 1985-07-23 |
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