JPS57192909A - Automatic focusing device for optical system expanding obserbation apparatus - Google Patents
Automatic focusing device for optical system expanding obserbation apparatusInfo
- Publication number
- JPS57192909A JPS57192909A JP7809681A JP7809681A JPS57192909A JP S57192909 A JPS57192909 A JP S57192909A JP 7809681 A JP7809681 A JP 7809681A JP 7809681 A JP7809681 A JP 7809681A JP S57192909 A JPS57192909 A JP S57192909A
- Authority
- JP
- Japan
- Prior art keywords
- light
- reflected
- output
- photoelectric element
- automatic focusing
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/241—Devices for focusing
- G02B21/245—Devices for focusing using auxiliary sources, detectors
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7809681A JPS57192909A (en) | 1981-05-25 | 1981-05-25 | Automatic focusing device for optical system expanding obserbation apparatus |
US06/310,240 US4433235A (en) | 1980-10-09 | 1981-10-09 | Focusing position detecting device in optical magnifying and observing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7809681A JPS57192909A (en) | 1981-05-25 | 1981-05-25 | Automatic focusing device for optical system expanding obserbation apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57192909A true JPS57192909A (en) | 1982-11-27 |
JPH0157328B2 JPH0157328B2 (es) | 1989-12-05 |
Family
ID=13652329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7809681A Granted JPS57192909A (en) | 1980-10-09 | 1981-05-25 | Automatic focusing device for optical system expanding obserbation apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57192909A (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6974938B1 (en) | 2000-03-08 | 2005-12-13 | Tibotec Bvba | Microscope having a stable autofocusing apparatus |
-
1981
- 1981-05-25 JP JP7809681A patent/JPS57192909A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6974938B1 (en) | 2000-03-08 | 2005-12-13 | Tibotec Bvba | Microscope having a stable autofocusing apparatus |
US7016110B2 (en) | 2000-03-08 | 2006-03-21 | Tibotec Bvba | Microscope suitable for high-throughput screening having an autofocusing apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0157328B2 (es) | 1989-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE59007982D1 (de) | Autofocussystem für Fotoapparate. | |
ATE9741T1 (de) | Brennpunktdetektor. | |
NO883924L (no) | Optikk for maaling av krummingsvariasjon. | |
DE59102890D1 (de) | Positionsmesseinrichtung. | |
JPS57192909A (en) | Automatic focusing device for optical system expanding obserbation apparatus | |
GB9503485D0 (en) | Displacement measurement apparatus and method | |
ATE94981T1 (de) | Optikanordnung zur dreidimensionalen formerfassung. | |
JPS6421728A (en) | Optical head | |
JPS57105832A (en) | Detector for optical position | |
JPS5459166A (en) | Visual sensibility measuring apparatus of interferometer | |
JPS56133704A (en) | Focus error detector | |
JPS5764712A (en) | Detector for focusing position | |
SE8404376L (sv) | Metanordning for identifiering av ytprofilen hos ett foremal | |
SU1656366A1 (ru) | Способ определени плоскости наилучшей установки объектива | |
SU1037070A1 (ru) | Устройство дл измерени линейных перемещений объектов | |
JPS5773707A (en) | Focusing device | |
DE69310969D1 (de) | Vorrichtung zum Messen der axialen Geschwindigkeit | |
JPS57204503A (en) | Automatic focusing system | |
JPS54106253A (en) | Automatic focusing device | |
JPS57148259A (en) | Photo measuring method | |
JPS56162708A (en) | Optical system for detecting focus state in photographic device using zoom lens | |
JPS57183639A (en) | Focus detector | |
JPS5772004A (en) | Device for measuring curvature | |
JPS641128A (en) | Optical beam spot observing device | |
JPS57197415A (en) | Range finder |