JPH0442604B2 - - Google Patents
Info
- Publication number
- JPH0442604B2 JPH0442604B2 JP9896283A JP9896283A JPH0442604B2 JP H0442604 B2 JPH0442604 B2 JP H0442604B2 JP 9896283 A JP9896283 A JP 9896283A JP 9896283 A JP9896283 A JP 9896283A JP H0442604 B2 JPH0442604 B2 JP H0442604B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical
- laser beam
- pulse
- laser
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 41
- 239000004065 semiconductor Substances 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
- H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
- H03M1/301—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/36—Forming the light into pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optical Transform (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9896283A JPS59224515A (ja) | 1983-06-03 | 1983-06-03 | 光学式エンコ−ダ |
DE19843420600 DE3420600A1 (de) | 1983-06-03 | 1984-06-01 | Optischer codierer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9896283A JPS59224515A (ja) | 1983-06-03 | 1983-06-03 | 光学式エンコ−ダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59224515A JPS59224515A (ja) | 1984-12-17 |
JPH0442604B2 true JPH0442604B2 (fr) | 1992-07-14 |
Family
ID=14233692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9896283A Granted JPS59224515A (ja) | 1983-06-03 | 1983-06-03 | 光学式エンコ−ダ |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS59224515A (fr) |
DE (1) | DE3420600A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4733069A (en) * | 1986-02-14 | 1988-03-22 | Optec Co., Ltd. | Position encoder using a laser scan beam |
JP2508428B2 (ja) * | 1986-10-03 | 1996-06-19 | ソニー株式会社 | 光学式エンコ−ダ |
DE3737278A1 (de) * | 1986-11-04 | 1988-05-11 | Canon Kk | Verfahren und vorrichtung zum optischen erfassen der stellung eines objekts |
DE4220502C1 (de) * | 1992-06-23 | 1993-12-16 | Stegmann Max Antriebstech | Drehwinkelmeßsystem |
JPH10260007A (ja) * | 1997-03-14 | 1998-09-29 | Ricoh Co Ltd | 相対位置検出装置 |
JP3672438B2 (ja) * | 1998-07-08 | 2005-07-20 | 株式会社リコー | 光学式エンコーダ装置 |
ATE458985T1 (de) * | 2000-03-28 | 2010-03-15 | Aim Controls Inc | Drehgeber |
US7532370B2 (en) | 2002-12-02 | 2009-05-12 | Ricoh Company, Ltd. | Optical encoder, motor driver and image forming apparatus |
DE10311412B3 (de) * | 2003-03-13 | 2004-05-27 | Lenord, Bauer & Co. Gmbh | Verfahren zur Messung und Bestimmung der absoluten Position einer Geberwelle sowie einer Einrichtung zur Anwendung des Verfahrens |
JP4863803B2 (ja) | 2006-07-28 | 2012-01-25 | 株式会社ミツトヨ | 光学式エンコーダ |
JP2009264778A (ja) * | 2008-04-22 | 2009-11-12 | Satoshi Kiyono | 光スポット変位検出装置及び計測装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7100212A (fr) * | 1971-01-08 | 1972-07-11 | ||
DE2517176A1 (de) * | 1975-04-18 | 1976-10-21 | Espera Werke Gmbh | Einstellvorrichtung fuer abtastvorrichtungen an merkmalskalen |
US4096383A (en) * | 1976-11-08 | 1978-06-20 | Gilbert & Barker Manufacturing Company | Pulse-generating apparatus responsive to shaft rotation |
US4263506A (en) * | 1978-12-21 | 1981-04-21 | Hewlett-Packard Company | Pulse generating apparatus |
US4385234A (en) * | 1980-11-25 | 1983-05-24 | Bei Electronics, Inc. | Optical systems for optical encoders |
JPS57136118A (en) * | 1981-02-17 | 1982-08-23 | Ricoh Co Ltd | Setting of phase difference in two sets of pulse trains of rotary encoder |
GB2114834A (en) * | 1982-02-12 | 1983-08-24 | Solenoids And Regulators Limit | Displacement encoder |
-
1983
- 1983-06-03 JP JP9896283A patent/JPS59224515A/ja active Granted
-
1984
- 1984-06-01 DE DE19843420600 patent/DE3420600A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3420600C2 (fr) | 1989-09-07 |
DE3420600A1 (de) | 1984-12-13 |
JPS59224515A (ja) | 1984-12-17 |
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