JPS5664525A - Light modulator - Google Patents

Light modulator

Info

Publication number
JPS5664525A
JPS5664525A JP13935379A JP13935379A JPS5664525A JP S5664525 A JPS5664525 A JP S5664525A JP 13935379 A JP13935379 A JP 13935379A JP 13935379 A JP13935379 A JP 13935379A JP S5664525 A JPS5664525 A JP S5664525A
Authority
JP
Japan
Prior art keywords
working point
shift
voltage
source
wavelength
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
JP13935379A
Other languages
Japanese (ja)
Inventor
Yutaka Sato
Yutaka Ichihara
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.)
Nikon Corp
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
Nippon Kogaku KK
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 Nippon Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP13935379A priority Critical patent/JPS5664525A/en
Publication of JPS5664525A publication Critical patent/JPS5664525A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To ensure a quick correction for the shift of the working point, by using the electric or optical working point shifting device to give a shift to the working point by an amount of half wavelength plus the electric or optical working point shifting device of give a continuous shift to the working point. CONSTITUTION:The linear polarized light 2 given from the linear polarized light source 1 is incident to the output light volume detector 7 by the half-mirror 6 and via the light modulating element 3, the 1/4-wavelength plate 4 and the analyzer 5 each. On the other hand, the pulse generator 8 generates the pulse having a height equivalent to the half-wavelength voltage of the element 3. The output voltage can be adjusted by an operation from outside for the variable DC voltage source 9 which functions as a working point shifting means. The source 9 is connected to the generator 8 so that the sum of its output voltage and the pulse generator 8 may be applied to the element 3.
JP13935379A 1979-10-30 1979-10-30 Light modulator Pending JPS5664525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13935379A JPS5664525A (en) 1979-10-30 1979-10-30 Light modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13935379A JPS5664525A (en) 1979-10-30 1979-10-30 Light modulator

Publications (1)

Publication Number Publication Date
JPS5664525A true JPS5664525A (en) 1981-06-01

Family

ID=15243343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13935379A Pending JPS5664525A (en) 1979-10-30 1979-10-30 Light modulator

Country Status (1)

Country Link
JP (1) JPS5664525A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616621A (en) * 1984-05-01 1986-01-13 クロスフィールド　エレクトロニクス　リミティド Method and apparatus for exposing recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616621A (en) * 1984-05-01 1986-01-13 クロスフィールド　エレクトロニクス　リミティド Method and apparatus for exposing recording medium

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