JPS57197406A - Optical spherometer - Google Patents

Optical spherometer

Info

Publication number
JPS57197406A
JPS57197406A JP8290481A JP8290481A JPS57197406A JP S57197406 A JPS57197406 A JP S57197406A JP 8290481 A JP8290481 A JP 8290481A JP 8290481 A JP8290481 A JP 8290481A JP S57197406 A JPS57197406 A JP S57197406A
Authority
JP
Japan
Prior art keywords
light
prism
made incident
reflected
point
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.)
Granted
Application number
JP8290481A
Other languages
Japanese (ja)
Other versions
JPH0128881B2 (en
Inventor
Hiroshi Mizutani
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.)
Mitsutoyo Manufacturing Co Ltd
Original Assignee
Mitsutoyo Manufacturing Co Ltd
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 Mitsutoyo Manufacturing Co Ltd filed Critical Mitsutoyo Manufacturing Co Ltd
Priority to JP8290481A priority Critical patent/JPS57197406A/en
Publication of JPS57197406A publication Critical patent/JPS57197406A/en
Publication of JPH0128881B2 publication Critical patent/JPH0128881B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/2408—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring roundness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE:To provide a plurality of measuring lenses and to increase the utilizing efficiency of light, by constituting in such a way that a light from a light source transmits a half reflecting mirror and is made incident to a spherical surface to be measured with a stereo visual angle alpha and a light reflected on the half reflecting mirror is made incident with a stereo visual angle beta. CONSTITUTION:A ray of opposite direction from a light source 11 is made incident to a point A on a spherical surface to be measured 5 with a stereo visual angle alpha via a rectangular prism 16, a slit 12, a half transmission and reflection prism 13, a prism 18, an objective lens 20. On the other hand, a ray reflected on the prism 13 is made incident to a point B on the surface 5 with a stereo visual angle beta via prisms 21-25 and an objective lens 26. Further, the light reflected on the prism 25 is reflected on a reflecting mirror 27 and is made incident on one point B' on a symmetrical axis 15 on a symmetrical axis 15 and the focus B is retarded. For example, the reflected light from the point A is image-formed via the prism 13, lenses 28, 29, 30A, 30B, 31 and 32 and an eyepiece lens 33. Thus, the measuring can be of a plurality and the utilizing efficiency of light can be increased.
JP8290481A 1981-05-29 1981-05-29 Optical spherometer Granted JPS57197406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8290481A JPS57197406A (en) 1981-05-29 1981-05-29 Optical spherometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8290481A JPS57197406A (en) 1981-05-29 1981-05-29 Optical spherometer

Publications (2)

Publication Number Publication Date
JPS57197406A true JPS57197406A (en) 1982-12-03
JPH0128881B2 JPH0128881B2 (en) 1989-06-06

Family

ID=13787239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8290481A Granted JPS57197406A (en) 1981-05-29 1981-05-29 Optical spherometer

Country Status (1)

Country Link
JP (1) JPS57197406A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020175026A1 (en) * 2019-02-28 2020-09-03 Ｎｔｔエレクトロニクス株式会社 Optical transmission characteristic estimation method, optical transmission characteristic estimation system, and optical transmission characteristic compensation system

Also Published As

Publication number Publication date
JPH0128881B2 (en) 1989-06-06

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