JPS56151913A - Wide-angle deflecting device - Google Patents

Wide-angle deflecting device

Info

Publication number
JPS56151913A
JPS56151913A JP5608080A JP5608080A JPS56151913A JP S56151913 A JPS56151913 A JP S56151913A JP 5608080 A JP5608080 A JP 5608080A JP 5608080 A JP5608080 A JP 5608080A JP S56151913 A JPS56151913 A JP S56151913A
Authority
JP
Japan
Prior art keywords
luminous flux
signal
entered
electrode
frequency
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
JP5608080A
Other languages
Japanese (ja)
Inventor
Kazuya Matsumoto
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP5608080A priority Critical patent/JPS56151913A/en
Priority to DE19813116426 priority patent/DE3116426A1/en
Publication of JPS56151913A publication Critical patent/JPS56151913A/en
Priority to US06/509,862 priority patent/US4470661A/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
    • 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
    • G02F1/335—Acousto-optical deflection devices having an optical waveguide structure

Abstract

PURPOSE:To scan a wide scanning area substantially without any flyback time by applying the signal reciprocatively changing in a prescribed frequency range to a transducer, and changing over the two incident luminous fluxes in correspondence to the reciprocation of the frequencies thereof. CONSTITUTION:An optical waveguide 21 is formed on the surface of a piezoelectric crystal plate 10 of LiNbO3 or the like by diffusing Ti, and two semiconductor lasers 25, 26 are disposed to the incident end surface thereof. The respective luminous fluxes thereof are diffracted in the ultrasonic field through a thin film lens 27. Two sets of comb-shaped electrodes 29, 30 are inclined by a prescribed angle and are disposed in a manner that the patterns are made symmetrical. When the signal of which the frequency changes continuously from f2 up to f1 is applied to the electrode 29, and a luminous flux 22 is entered, a deflected luminous flux 31 is obtained. When the signal of which the frequency continuously changes from f1 up to f2 is applied to the electrode 30 and a luminous flux 23 is entered in succession to this, a deflected luminous flux 33 is obtained. Hence, a wide scanning range is scanned substantially without any flyback time.
JP5608080A 1980-04-26 1980-04-26 Wide-angle deflecting device Pending JPS56151913A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5608080A JPS56151913A (en) 1980-04-26 1980-04-26 Wide-angle deflecting device
DE19813116426 DE3116426A1 (en) 1980-04-26 1981-04-24 "BEAM DEFLECTOR"
US06/509,862 US4470661A (en) 1980-04-26 1983-06-30 Beam deflecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5608080A JPS56151913A (en) 1980-04-26 1980-04-26 Wide-angle deflecting device

Publications (1)

Publication Number Publication Date
JPS56151913A true JPS56151913A (en) 1981-11-25

Family

ID=13017098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5608080A Pending JPS56151913A (en) 1980-04-26 1980-04-26 Wide-angle deflecting device

Country Status (1)

Country Link
JP (1) JPS56151913A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150034A (en) * 1984-08-20 1986-03-12 Nippon Telegr & Teleph Corp <Ntt> Light splitting circuit
JPH02139261A (en) * 1988-11-21 1990-05-29 Nec Corp Printing head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150034A (en) * 1984-08-20 1986-03-12 Nippon Telegr & Teleph Corp <Ntt> Light splitting circuit
JPH02139261A (en) * 1988-11-21 1990-05-29 Nec Corp Printing head

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