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JPS6454328A - Automatic focusing mechanism for lens inspection instrument - Google Patents

Automatic focusing mechanism for lens inspection instrument

Info

Publication number
JPS6454328A
JPS6454328A JP21029587A JP21029587A JPS6454328A JP S6454328 A JPS6454328 A JP S6454328A JP 21029587 A JP21029587 A JP 21029587A JP 21029587 A JP21029587 A JP 21029587A JP S6454328 A JPS6454328 A JP S6454328A
Authority
JP
Japan
Prior art keywords
lens
focusing
motor
inspection instrument
movable part
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
JP21029587A
Other languages
Japanese (ja)
Inventor
Atsushi Osone
Tsutomu Hongo
Tsunemi Fukushima
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.)
Hitachi High Tech Corp
Original Assignee
Hitachi Electronics Engineering 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 Hitachi Electronics Engineering Co Ltd filed Critical Hitachi Electronics Engineering Co Ltd
Priority to JP21029587A priority Critical patent/JPS6454328A/en
Publication of JPS6454328A publication Critical patent/JPS6454328A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Optical Devices Or Fibers (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To reduce the mass of a moving part for focusing and to improve the response to the focusing by coupling a chuck mechanism with the movable part of a voice coil motor and providing a passage for irradiation light to its center part. CONSTITUTION:This mechanism is provided with the lens chuck mechanism 1 which chucks a lens 2 while an open state is set in front of and behind the lens 2 and the voice coil motor 14 which has a through-hole 17. Then the movable part 14b of the motor 14 is coupled with the mechanism 1 and the through hole 17 becomes the optical path of light irradiating the chucked lens 2. Thus, the mechanism 1 is coupled directly with the movable part 14b and the passage of the irradiation light is provided at the center part of the motor 14 to reduce the overall mass of the moving mechanism for the focusing. Further, the mechanism 1 is coupled directly with the motor 14 for the movement driving mechanism to perform with good response. Therefore, the focusing is completed in a short time, the mechanism which is simple on the whole is obtained, and the inspection instrument is therefore reduced in size.
JP21029587A 1987-08-26 1987-08-26 Automatic focusing mechanism for lens inspection instrument Pending JPS6454328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21029587A JPS6454328A (en) 1987-08-26 1987-08-26 Automatic focusing mechanism for lens inspection instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21029587A JPS6454328A (en) 1987-08-26 1987-08-26 Automatic focusing mechanism for lens inspection instrument

Publications (1)

Publication Number Publication Date
JPS6454328A true JPS6454328A (en) 1989-03-01

Family

ID=16587032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21029587A Pending JPS6454328A (en) 1987-08-26 1987-08-26 Automatic focusing mechanism for lens inspection instrument

Country Status (1)

Country Link
JP (1) JPS6454328A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108871732A (en) * 2017-05-12 2018-11-23 翊鼎光电股份有限公司 Optical detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108871732A (en) * 2017-05-12 2018-11-23 翊鼎光电股份有限公司 Optical detection device

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