JPS6454407A - Optical axis setter for autocollimator - Google Patents

Optical axis setter for autocollimator

Info

Publication number
JPS6454407A
JPS6454407A JP21237887A JP21237887A JPS6454407A JP S6454407 A JPS6454407 A JP S6454407A JP 21237887 A JP21237887 A JP 21237887A JP 21237887 A JP21237887 A JP 21237887A JP S6454407 A JPS6454407 A JP S6454407A
Authority
JP
Japan
Prior art keywords
autocollimator
optical axis
fitting
point
reflecting mirror
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
JP21237887A
Other languages
Japanese (ja)
Inventor
Yoshito Shinohara
Norito Kurose
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.)
Tokyo Metropolitan Government
Original Assignee
Tokyo Metropolitan Government
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 Tokyo Metropolitan Government filed Critical Tokyo Metropolitan Government
Priority to JP21237887A priority Critical patent/JPS6454407A/en
Publication of JPS6454407A publication Critical patent/JPS6454407A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

PURPOSE:To easily correct a shift in optical axis due to movement by providing a reflecting mirror for separating part of projection light toward the light reflecting liquid surface of a reference plane device and a fitting part for fitting a reflecting mirror separately from or integrally with the autocollimator. CONSTITUTION:The optical axis setting device 1 consists of the reference plane device 2, reflecting mirror 3, and fitting part 4 for fitting the autocollimator 5. Then when the optical axis AO is horizontal, light passes through an optical path A O B O A and returns to the point A. If the autocollimator 5 slants by an angle theta from a horizontal surface as shown by CO, light from the autocollimator 5 passes through an optical path C O D O' E and travels to a point E without returning to the point C. Here, when the initial setting of the optical axis of the autocollimator 5 is set to the horizontal, the attitude of the autocollimator 5 is adjusted by an attitude adjusting device to move the optical axis from the CO to AO. Consequently, even when the autocollimator 5 is moved, its shift of the optical axis is easily corrected.
JP21237887A 1987-08-25 1987-08-25 Optical axis setter for autocollimator Pending JPS6454407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21237887A JPS6454407A (en) 1987-08-25 1987-08-25 Optical axis setter for autocollimator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21237887A JPS6454407A (en) 1987-08-25 1987-08-25 Optical axis setter for autocollimator

Publications (1)

Publication Number Publication Date
JPS6454407A true JPS6454407A (en) 1989-03-01

Family

ID=16621578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21237887A Pending JPS6454407A (en) 1987-08-25 1987-08-25 Optical axis setter for autocollimator

Country Status (1)

Country Link
JP (1) JPS6454407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000030207A1 (en) * 1998-11-17 2000-05-25 Nec Corporation Portable terminal device having reflection board

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152209A (en) * 1982-03-05 1983-09-09 Hitachi Ltd Method for holding laser beam horizontally or vertically

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152209A (en) * 1982-03-05 1983-09-09 Hitachi Ltd Method for holding laser beam horizontally or vertically

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000030207A1 (en) * 1998-11-17 2000-05-25 Nec Corporation Portable terminal device having reflection board
US6947762B1 (en) 1998-11-17 2005-09-20 Nec Corporation Portable terminal device with reflection board

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