JPS6474413A - Optical displacement detector - Google Patents

Optical displacement detector

Info

Publication number
JPS6474413A
JPS6474413A JP23343487A JP23343487A JPS6474413A JP S6474413 A JPS6474413 A JP S6474413A JP 23343487 A JP23343487 A JP 23343487A JP 23343487 A JP23343487 A JP 23343487A JP S6474413 A JPS6474413 A JP S6474413A
Authority
JP
Japan
Prior art keywords
light
emitting element
light emitting
main scale
scale
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
JP23343487A
Other languages
Japanese (ja)
Inventor
Yoshihiko Kabaya
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.)
Mitutoyo Corp
Mitsutoyo Kiko Co Ltd
Original Assignee
Mitutoyo Corp
Mitsutoyo Kiko 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 Mitutoyo Corp, Mitsutoyo Kiko Co Ltd filed Critical Mitutoyo Corp
Priority to JP23343487A priority Critical patent/JPS6474413A/en
Publication of JPS6474413A publication Critical patent/JPS6474413A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To reduce the manufacture cost and increase the degree of freedom of the designing and manufacture by constituting the reflection type optical displacement detector by fitting a light emitting element and a light receiving element to a lead frame. CONSTITUTION:A 1st member 18 where a main scale 16 consisting of an optical grating with constant pitch and a reference scale 20 consisting of an optical grating corresponding to the main scale 16 are provided, and the 2nd member is arranged relatively movably to the 1st member 18. A light-transmissive resin mold 32 wherein the lead frame 30 is molded integrally is provided on the opposite side from the 2nd member 22 and the light emitting element 26 and light emitting element 24 are fixed on the lead frame 30. Projection light from the light emitting element 26 is made into parallel light through a lens 34 and a reflecting mirror 28 and reaches the light receiving element 26 through the main scale 16 and reference scale 20. The light receiving element 26 detects variation of the input light based upon the repetition of an overlap between the main scale and reference scale by the relative displacement between the 1st and 2nd members 18 and 22 and detects the relative variation quantity between the 1st and 2nd members from the detection result.
JP23343487A 1987-09-17 1987-09-17 Optical displacement detector Pending JPS6474413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23343487A JPS6474413A (en) 1987-09-17 1987-09-17 Optical displacement detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23343487A JPS6474413A (en) 1987-09-17 1987-09-17 Optical displacement detector

Publications (1)

Publication Number Publication Date
JPS6474413A true JPS6474413A (en) 1989-03-20

Family

ID=16954979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23343487A Pending JPS6474413A (en) 1987-09-17 1987-09-17 Optical displacement detector

Country Status (1)

Country Link
JP (1) JPS6474413A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1472712A4 (en) * 2002-02-06 2010-08-04 Gentex Corp DETECTION CONFIGURATION FOR SUBSTANTIAL SPACING IN RELATION TO A SMALL OPENING
US9870753B2 (en) 2013-02-12 2018-01-16 Gentex Corporation Light sensor having partially opaque optic
US9961746B2 (en) 2013-02-12 2018-05-01 Gentex Corporation Light sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1472712A4 (en) * 2002-02-06 2010-08-04 Gentex Corp DETECTION CONFIGURATION FOR SUBSTANTIAL SPACING IN RELATION TO A SMALL OPENING
US9870753B2 (en) 2013-02-12 2018-01-16 Gentex Corporation Light sensor having partially opaque optic
US9961746B2 (en) 2013-02-12 2018-05-01 Gentex Corporation Light sensor
US11017741B2 (en) 2013-02-12 2021-05-25 Gentex Corporation Light sensor having partially opaque optic

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