JPS6466614A - Optical controller - Google Patents

Optical controller

Info

Publication number
JPS6466614A
JPS6466614A JP22461287A JP22461287A JPS6466614A JP S6466614 A JPS6466614 A JP S6466614A JP 22461287 A JP22461287 A JP 22461287A JP 22461287 A JP22461287 A JP 22461287A JP S6466614 A JPS6466614 A JP S6466614A
Authority
JP
Japan
Prior art keywords
magnetic
container
light beam
fluid
switch
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
JP22461287A
Other languages
Japanese (ja)
Inventor
Toshiharu Tanaka
Toshiaki Yokoo
Kenichi Shibata
Kosuke Takeuchi
Seiji Nishikawa
Shoichi Nakano
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP22461287A priority Critical patent/JPS6466614A/en
Publication of JPS6466614A publication Critical patent/JPS6466614A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To miniaturize a shape, and also, to simplify a structure, by magnetizing a magnetic pole plate by a line of magnetic force generated by an electric conduction of a current path, and executing a transmission control of light by attracting a magnetic fluid. CONSTITUTION:When a light beam 7 is projected to the center part of a container 1, when a switch is opened, the light beam 7 is scattered and attracted by a magnetic fluid 2 and does not transmit through the container 1. On the other hand, when the switch 5 is closed, a current flows to current paths 3,4 a line of magnetic force 9 is generated in the periphery of the current paths 3,4 and magnetic pole plates 6,6 are magnetized so as to become different magnetic poles, and attract fluid 2. As result, the density of the magnetic fluid 2 of the center part of the container 1 becomes low, and the light beam transmits through the container 1 and emitted.
JP22461287A 1987-09-08 1987-09-08 Optical controller Pending JPS6466614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22461287A JPS6466614A (en) 1987-09-08 1987-09-08 Optical controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22461287A JPS6466614A (en) 1987-09-08 1987-09-08 Optical controller

Publications (1)

Publication Number Publication Date
JPS6466614A true JPS6466614A (en) 1989-03-13

Family

ID=16816449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22461287A Pending JPS6466614A (en) 1987-09-08 1987-09-08 Optical controller

Country Status (1)

Country Link
JP (1) JPS6466614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018155524A (en) * 2017-03-16 2018-10-04 セイコーインスツル株式会社 Display device, timepiece, and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018155524A (en) * 2017-03-16 2018-10-04 セイコーインスツル株式会社 Display device, timepiece, and electronic device

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