DE69021544D1 - Verfahren und Vorrichtung zur Photodetektion. - Google Patents
Verfahren und Vorrichtung zur Photodetektion.Info
- Publication number
- DE69021544D1 DE69021544D1 DE69021544T DE69021544T DE69021544D1 DE 69021544 D1 DE69021544 D1 DE 69021544D1 DE 69021544 T DE69021544 T DE 69021544T DE 69021544 T DE69021544 T DE 69021544T DE 69021544 D1 DE69021544 D1 DE 69021544D1
- Authority
- DE
- Germany
- Prior art keywords
- photodetection
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
- G01C15/006—Detectors therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1329937A JP2860571B2 (ja) | 1989-12-20 | 1989-12-20 | 光検出方法およびそのための装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69021544D1 true DE69021544D1 (de) | 1995-09-14 |
DE69021544T2 DE69021544T2 (de) | 1996-03-07 |
Family
ID=18226940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69021544T Expired - Fee Related DE69021544T2 (de) | 1989-12-20 | 1990-12-19 | Verfahren und Vorrichtung zur Photodetektion. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5196693A (de) |
EP (1) | EP0440956B1 (de) |
JP (1) | JP2860571B2 (de) |
DE (1) | DE69021544T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06109533A (ja) * | 1992-09-29 | 1994-04-19 | Japan Radio Co Ltd | 光学センサ |
JP3532986B2 (ja) * | 1995-02-21 | 2004-05-31 | 株式会社トプコン | 光波測距装置 |
JP3532991B2 (ja) * | 1995-02-24 | 2004-05-31 | 株式会社トプコン | 光波測距装置 |
US5977534A (en) * | 1997-04-11 | 1999-11-02 | Spectra-Precision, Inc. | Laser transmitter incorporating target dither |
US6091487A (en) * | 1997-09-09 | 2000-07-18 | Spectra Precision, Inc. | Laser transmitter incorporating auto scan dither zone |
UA99026C2 (ru) * | 2010-12-14 | 2012-07-10 | Институт Физики Национальной Академии Наук Украины | Способ измерения энергии импульсов оптического излучения и устройство для его реализации |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3644740A (en) * | 1969-07-22 | 1972-02-22 | Hughes Aircraft Co | Control circuit for biasing a photodetector so as to maintain a selected false alarm rate |
US4035084A (en) * | 1976-02-19 | 1977-07-12 | Ramsay James D | Automatic levelling method and apparatus for rotating laser beam transmitter |
GB2089971A (en) * | 1980-12-08 | 1982-06-30 | Wilj International Ltd | Apparatus for deriving an electrical signal from a radiation flash |
US4672189A (en) * | 1983-11-04 | 1987-06-09 | Canon Kabushiki Kaisha | Device for sensing light and providing electrical readout |
JPS6150017A (ja) * | 1985-07-08 | 1986-03-12 | Minolta Camera Co Ltd | 閃光及び定常光下の被写体に対する測光装置 |
US4676634A (en) * | 1985-08-05 | 1987-06-30 | Spectra-Physics, Inc. | Detector device for a rotating light beam |
US4736097A (en) * | 1987-02-02 | 1988-04-05 | Harald Philipp | Optical motion sensor |
-
1989
- 1989-12-20 JP JP1329937A patent/JP2860571B2/ja not_active Expired - Fee Related
-
1990
- 1990-12-19 DE DE69021544T patent/DE69021544T2/de not_active Expired - Fee Related
- 1990-12-19 EP EP90124788A patent/EP0440956B1/de not_active Expired - Lifetime
- 1990-12-20 US US07/631,716 patent/US5196693A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5196693A (en) | 1993-03-23 |
JPH03189512A (ja) | 1991-08-19 |
EP0440956B1 (de) | 1995-08-09 |
DE69021544T2 (de) | 1996-03-07 |
JP2860571B2 (ja) | 1999-02-24 |
EP0440956A2 (de) | 1991-08-14 |
EP0440956A3 (en) | 1992-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |