JPS6128923B2 - - Google Patents
Info
- Publication number
- JPS6128923B2 JPS6128923B2 JP55101035A JP10103580A JPS6128923B2 JP S6128923 B2 JPS6128923 B2 JP S6128923B2 JP 55101035 A JP55101035 A JP 55101035A JP 10103580 A JP10103580 A JP 10103580A JP S6128923 B2 JPS6128923 B2 JP S6128923B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- scale
- lens
- half mirror
- receives
- 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 12
- 230000001427 coherent effect Effects 0.000 claims description 6
- 230000010363 phase shift Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000000737 periodic effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- G01D5/38—Forming the light into pulses by diffraction gratings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10103580A JPS5724817A (en) | 1980-07-23 | 1980-07-23 | Reading device for optical type scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10103580A JPS5724817A (en) | 1980-07-23 | 1980-07-23 | Reading device for optical type scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5724817A JPS5724817A (en) | 1982-02-09 |
| JPS6128923B2 true JPS6128923B2 (ru) | 1986-07-03 |
Family
ID=14289903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10103580A Granted JPS5724817A (en) | 1980-07-23 | 1980-07-23 | Reading device for optical type scale |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5724817A (ru) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3741579A1 (en) | 2019-05-24 | 2020-11-25 | Canon Kabushiki Kaisha | Method for processing a sheet, bookbinding method, and bookbinding article |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5764717U (ru) * | 1980-10-06 | 1982-04-17 | ||
| JPS61176817A (ja) * | 1985-01-31 | 1986-08-08 | Foster Denki Kk | エンコ−ダ |
| DE3541199C1 (de) * | 1985-11-21 | 1987-06-25 | Heidenhain Gmbh Dr Johannes | Lichtelektrische Positionsmesseinrichtung |
| JPH0648169B2 (ja) * | 1987-05-11 | 1994-06-22 | キヤノン株式会社 | 測長装置 |
| JPH01187406A (ja) * | 1988-01-22 | 1989-07-26 | Rikagaku Kenkyusho | 等間隔干渉縞の位置検出法ならびに位置検出装置 |
-
1980
- 1980-07-23 JP JP10103580A patent/JPS5724817A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3741579A1 (en) | 2019-05-24 | 2020-11-25 | Canon Kabushiki Kaisha | Method for processing a sheet, bookbinding method, and bookbinding article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5724817A (en) | 1982-02-09 |
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