JPS56112124A - Light logical equipment - Google Patents

Light logical equipment

Info

Publication number
JPS56112124A
JPS56112124A JP1529280A JP1529280A JPS56112124A JP S56112124 A JPS56112124 A JP S56112124A JP 1529280 A JP1529280 A JP 1529280A JP 1529280 A JP1529280 A JP 1529280A JP S56112124 A JPS56112124 A JP S56112124A
Authority
JP
Japan
Prior art keywords
polarizing plate
light
phase
logical equipment
polarizing
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
JP1529280A
Other languages
Japanese (ja)
Inventor
Tetsuya Okano
Shigeru Ueno
Yoshihiro Sugano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1529280A priority Critical patent/JPS56112124A/en
Publication of JPS56112124A publication Critical patent/JPS56112124A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F3/00—Optical logic elements; Optical bistable devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To get rid of a malfunction of the logical equipment, which is apt to occur by the inductive voltage, by transmitting a light from the fixed polarizing plate to the photodetection part through the polarizing plate which is interlocked with operation of the mechanical moving member. CONSTITUTION:In case of the OR logical equipment, the polarizing plates 18 incorporated in the operation mechanism 17 of the gas breaker CB of 3 phase are arranged at 45 deg. polarized angle to the polarizing plate 20 contained in the light emission 15. Also, the polarizing plate 21 contained in the photodetector 14 is set at 80 deg. polarized angle to the polarizing plate 20. When all the gas breakers CB of 3 phase are opened, all the polarizing plates 18 shift from the optical axis, light does not pass through the polarizing plate 21, and it is not detected by the photodetecting element. On the other hand, when at least one of the gas breakers CS of 3 phase is closed and the polarizing plate 18 gets down, the difference of adjacent polarized angles becomes 45 deg., light passes through the polarizing plate 21, and it is detected by the photodetecting element, by which the output as the OR circuit can be obtained.
JP1529280A 1980-02-11 1980-02-11 Light logical equipment Pending JPS56112124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1529280A JPS56112124A (en) 1980-02-11 1980-02-11 Light logical equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1529280A JPS56112124A (en) 1980-02-11 1980-02-11 Light logical equipment

Publications (1)

Publication Number Publication Date
JPS56112124A true JPS56112124A (en) 1981-09-04

Family

ID=11884755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1529280A Pending JPS56112124A (en) 1980-02-11 1980-02-11 Light logical equipment

Country Status (1)

Country Link
JP (1) JPS56112124A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885422A (en) * 1981-11-16 1983-05-21 Mitsubishi Electric Corp Optical logical element using polarized light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885422A (en) * 1981-11-16 1983-05-21 Mitsubishi Electric Corp Optical logical element using polarized light

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