JPS6440915A - Photoelectric limit switch - Google Patents

Photoelectric limit switch

Info

Publication number
JPS6440915A
JPS6440915A JP19794987A JP19794987A JPS6440915A JP S6440915 A JPS6440915 A JP S6440915A JP 19794987 A JP19794987 A JP 19794987A JP 19794987 A JP19794987 A JP 19794987A JP S6440915 A JPS6440915 A JP S6440915A
Authority
JP
Japan
Prior art keywords
displacement
reflecting plate
detection end
prism
detected
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
JP19794987A
Other languages
Japanese (ja)
Inventor
Motoharu Yatsuhashi
Kazuhiko Torii
Takeshi Hirama
Tatsuya Suematsu
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP19794987A priority Critical patent/JPS6440915A/en
Publication of JPS6440915A publication Critical patent/JPS6440915A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mechanical Light Control Or Optical Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

PURPOSE:To simplify the structure of a switch by converting the displacement of a displacement body to be detected into the up-down motion of a shield body in an enclosed case and detecting whether or not reflected light is generated between a reflecting plate and an optical fiber detection end by the up-down motion. CONSTITUTION:When a rotary lever 7 is rotated by the displacement of the displacement body to be detected, the shield body 5 in the enclosed case 1 moves up through a head 8, and the reflecting plate 6 and a prism 4 come to face each other directly; and the optical fiber detection end 3 projects light on the reflecting plate 6 through the prism 4 and the reflecting plate 6 reflects the light to the detection end 3 through the prism 4. Then the optical fiber detection end 3 sends the ON state of the reflected light to a photodetector to detect the displacement of the displacement body to be detected. The prism 4 is used, so the optical path between the optical detection end 3 and reflecting plate 6 which is used for the detection is bent to reduce the capacity that the optical path occupies. Consequently, the switch mechanism is simplified.
JP19794987A 1987-08-07 1987-08-07 Photoelectric limit switch Pending JPS6440915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19794987A JPS6440915A (en) 1987-08-07 1987-08-07 Photoelectric limit switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19794987A JPS6440915A (en) 1987-08-07 1987-08-07 Photoelectric limit switch

Publications (1)

Publication Number Publication Date
JPS6440915A true JPS6440915A (en) 1989-02-13

Family

ID=16382986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19794987A Pending JPS6440915A (en) 1987-08-07 1987-08-07 Photoelectric limit switch

Country Status (1)

Country Link
JP (1) JPS6440915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152508A (en) * 1989-11-10 1991-06-28 Koito Mfg Co Ltd Optical switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152508A (en) * 1989-11-10 1991-06-28 Koito Mfg Co Ltd Optical switch

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