JPS57190927A - Multispot acoustooptic modulator - Google Patents

Multispot acoustooptic modulator

Info

Publication number
JPS57190927A
JPS57190927A JP7614681A JP7614681A JPS57190927A JP S57190927 A JPS57190927 A JP S57190927A JP 7614681 A JP7614681 A JP 7614681A JP 7614681 A JP7614681 A JP 7614681A JP S57190927 A JPS57190927 A JP S57190927A
Authority
JP
Japan
Prior art keywords
sound
frequencies
signal
cell
diffraction
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.)
Granted
Application number
JP7614681A
Other languages
Japanese (ja)
Other versions
JPS6232458B2 (en
Inventor
Shuzo Hattori
Tadao Hiramatsu
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.)
Hagiwara Electric Co Ltd
Original Assignee
Hagiwara 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 Hagiwara Electric Co Ltd filed Critical Hagiwara Electric Co Ltd
Priority to JP7614681A priority Critical patent/JPS57190927A/en
Publication of JPS57190927A publication Critical patent/JPS57190927A/en
Publication of JPS6232458B2 publication Critical patent/JPS6232458B2/ja
Granted 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/33—Acousto-optical deflection devices

Landscapes

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

Abstract

PURPOSE:To reduce sound inputs and to prevent a change of diffracting direction caused by the generation of heat, by using repetitive interferences to increase the mutual functioning length between the sound and light waves and at the same time applying a thin-film producing technique to sufficiently decreasing the thickness of a sound solid material. CONSTITUTION:An output beam given from an He-Cd laser 1 is made incident to a diffraction cell 3 with an inclination. In this case, the direction of electric deviation is within an incident surface. The cell 3 has the dielectric multilayer reflecting films 3b1 and 3b2 formed on the surfaces parallel to each other on a tellurium glass plate 3a. The equidistant three frequencies fa1-fa3 are produced by oscillators 4a1-4a3 and controlled at the gates 4b1-4b3 and according to the digital image signal to be synthesized into a signal. This synthetic signal is amplified by a high frequency amplifier 4c and applied to a piezoelectric transducer 4d. The components which received the Bragg diffraction at each of the sound fields corresponding to the three frequencies are condensed at a lens 5a and form a light spot pattern at 5d.
JP7614681A 1981-05-20 1981-05-20 Multispot acoustooptic modulator Granted JPS57190927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7614681A JPS57190927A (en) 1981-05-20 1981-05-20 Multispot acoustooptic modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7614681A JPS57190927A (en) 1981-05-20 1981-05-20 Multispot acoustooptic modulator

Publications (2)

Publication Number Publication Date
JPS57190927A true JPS57190927A (en) 1982-11-24
JPS6232458B2 JPS6232458B2 (en) 1987-07-15

Family

ID=13596859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7614681A Granted JPS57190927A (en) 1981-05-20 1981-05-20 Multispot acoustooptic modulator

Country Status (1)

Country Link
JP (1) JPS57190927A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6294831A (en) * 1985-10-21 1987-05-01 Anritsu Corp Light diffracting device utilizing surface acoustic wave
JPS63239425A (en) * 1987-03-27 1988-10-05 Anritsu Corp Surface acoustic wave variable diffraction grating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6294831A (en) * 1985-10-21 1987-05-01 Anritsu Corp Light diffracting device utilizing surface acoustic wave
JPS63239425A (en) * 1987-03-27 1988-10-05 Anritsu Corp Surface acoustic wave variable diffraction grating

Also Published As

Publication number Publication date
JPS6232458B2 (en) 1987-07-15

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