Apparatus for deflecting light beam

Details Apparatus for deflecting light beam Apparatus for deflecting light beam

1986-02-04

1988-07-05

Sikes, William L.

350 9614, 350355, 350356, 350358, 350359, 350360, G02B 610

Patent

active

047550368

ABSTRACT:
An optical deflector including a waveguide which has an electrooptic effect and which is adapted to guide rays of light therethrough. The deflector comprises a deflector portion having deflection electrodes disposed on a portion of the waveguide and spaced apart in a selected direction intersecting a direction of propagation of the light. The deflector further comprises a controller for applying deflection voltages to the deflection electrodes to establish a distribution of refractive index of the above-indicated portion of the waveguide in the above selected direction. The controller periodically changes the deflection voltages to vary the refractive index distribution, thereby deflecting the light passing through the waveguide. The waveguide may be formed on a surface of a substrate made of an electrooptic material. The substrate may have a converging portion including convergence electrodes disposed on another portion of the waveguide, to converge the rays of light deflected by the deflector portion, convergence voltages to be applied to the convergence electrodes being varied according to an angle of deflection of the rays, to permit the convergence of the rays on a surface of an object irrespective of the deflection angle.

REFERENCES:
patent: 3795433 (1974-03-01), Channin
patent: 4070092 (1978-01-01), Burns
patent: 4175827 (1979-11-01), McMahon
patent: 4348079 (1982-09-01), Johnson
patent: 4413270 (1983-11-01), Sprague
patent: 4425023 (1984-01-01), Matsumoto et al.
patent: 4470661 (1984-09-01), Matsumoto
patent: 4478483 (1984-10-01), Sprague
patent: 4548464 (1985-10-01), Auracher et al.
patent: 4611883 (1986-09-01), Myer
patent: 4614408 (1986-09-01), Mir et al.
patent: 4637681 (1987-01-01), Yamamoto et al.
patent: 4705346 (1987-11-01), Miyawaki
patent: 4707059 (1987-11-01), Ogura et al.
Takizawa, "Electrooptical Fresnel Lens . . . ", Applied Optics, vol. 22, No. 16, 8/83, pp. 2468-2473.
Kazumasa Mitsunaga et al., "Optical Waveguide Isolator in Ti-Diffused LiNbO.sub.3 ", Optics Communications, vol. 27, No. 3, Dec. 1978, pp. 361-364.
J. Y. Tsao et al., "Photodeposition of Ti and Application to Direct Writing of Ti:LiNbO.sub.3 ", Appl. Phys. Lett., 42 (7), Apr. 1, 1983, pp. 559-561.

Affiliated with

Also associated with

Rating

Apparatus for deflecting light beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for deflecting light beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for deflecting light beam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2328987