JPS5674609A - Transit - Google Patents

Transit

Info

Publication number
JPS5674609A
JPS5674609A JP15217579A JP15217579A JPS5674609A JP S5674609 A JPS5674609 A JP S5674609A JP 15217579 A JP15217579 A JP 15217579A JP 15217579 A JP15217579 A JP 15217579A JP S5674609 A JPS5674609 A JP S5674609A
Authority
JP
Japan
Prior art keywords
slit plates
angle
index
slit
plates
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.)
Pending
Application number
JP15217579A
Other languages
Japanese (ja)
Inventor
Tomiya Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP15217579A priority Critical patent/JPS5674609A/en
Publication of JPS5674609A publication Critical patent/JPS5674609A/en
Pending legal-status Critical Current

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  • Optical Transform (AREA)

Abstract

PURPOSE: To read the angle easily by utilizing the interference fringe which occurs between the angle indexing slit plate and the index slit plate.
CONSTITUTION: The angle indexing slit plates 7h, 7v are installed to the rotary supporting shaft 3 of the body 1 and the supporting shaft 6 of the telescope 4, respectively, and also the index slit plates 8h, 8v are installed so that they are concentrically opposed at small intervals to the angle indexing slit plates 7h, 7v. And the light beams from the light emitting elements 11a, 11b are supplied to the photodetectors 12a, 12b through the angle indexing slit plates 7h, 7v and the index slit plates 8h, 8v, respectively, and as the angle indexing slit plates 7h, 7v and the index slit plates 8h, 8v rotate, the interference fringe which occurs between both the slit plates 7h, 8h and 7v, 8v is detected as an optical signal by the photodetectors 12a, 12b. This output is counted by the electronic circuit, and the count display is executed as the horizontal angle or the vertical angle on the digital display part 15.
COPYRIGHT: (C)1981,JPO&Japio
JP15217579A 1979-11-24 1979-11-24 Transit Pending JPS5674609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15217579A JPS5674609A (en) 1979-11-24 1979-11-24 Transit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15217579A JPS5674609A (en) 1979-11-24 1979-11-24 Transit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP14522083A Division JPS5946507A (en) 1983-08-08 1983-08-08 Transit

Publications (1)

Publication Number Publication Date
JPS5674609A true JPS5674609A (en) 1981-06-20

Family

ID=15534677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15217579A Pending JPS5674609A (en) 1979-11-24 1979-11-24 Transit

Country Status (1)

Country Link
JP (1) JPS5674609A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587514A (en) * 1981-07-08 1983-01-17 Tokyo Optical Co Ltd Digital transit
JPS587513A (en) * 1981-07-08 1983-01-17 Tokyo Optical Co Ltd Digital transit
JPS5842665U (en) * 1981-09-16 1983-03-22 富士光機株式会社 Digital theodolite rotation direction indicator
JPS58105010A (en) * 1981-12-17 1983-06-22 Tokyo Optical Co Ltd Warning device for setting angle value of digital transit
JPS59162610U (en) * 1981-09-18 1984-10-31 富士光機株式会社 Digital theodolite horizontal angle right angle direction indicator
JPS60243531A (en) * 1984-05-18 1985-12-03 Honda Motor Co Ltd Optical type torque detector
JPS60243532A (en) * 1984-05-18 1985-12-03 Honda Motor Co Ltd Optical type torque detector
JPS61706A (en) * 1984-06-14 1986-01-06 Mayekawa Mfg Co Ltd Detection of relative angular displacement of rotating shaft by inclined stripe
JPS6125010A (en) * 1984-07-16 1986-02-03 Asahi Optical Co Ltd Measurement processing circuit in measuring equipment having a plurality of encoders

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587514A (en) * 1981-07-08 1983-01-17 Tokyo Optical Co Ltd Digital transit
JPS587513A (en) * 1981-07-08 1983-01-17 Tokyo Optical Co Ltd Digital transit
JPS5842665U (en) * 1981-09-16 1983-03-22 富士光機株式会社 Digital theodolite rotation direction indicator
JPS59162610U (en) * 1981-09-18 1984-10-31 富士光機株式会社 Digital theodolite horizontal angle right angle direction indicator
JPS58105010A (en) * 1981-12-17 1983-06-22 Tokyo Optical Co Ltd Warning device for setting angle value of digital transit
JPH0449047B2 (en) * 1981-12-17 1992-08-10 Topcon Corp
JPS60243531A (en) * 1984-05-18 1985-12-03 Honda Motor Co Ltd Optical type torque detector
JPS60243532A (en) * 1984-05-18 1985-12-03 Honda Motor Co Ltd Optical type torque detector
JPS61706A (en) * 1984-06-14 1986-01-06 Mayekawa Mfg Co Ltd Detection of relative angular displacement of rotating shaft by inclined stripe
JPH0377929B2 (en) * 1984-06-14 1991-12-12 Maekawa Seisakusho Kk
JPS6125010A (en) * 1984-07-16 1986-02-03 Asahi Optical Co Ltd Measurement processing circuit in measuring equipment having a plurality of encoders

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