Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1997-09-05
1999-05-25
Epps, Georgia
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359305, 359312, 359314, G02F 111, G02F 133
Patent
active
059074280
ABSTRACT:
An xyz coordinate system is determined so that a z-axis may coincide with an incident direction of an incident light, an x-axis may coincide with a polarizing direction of the incident light and a y-axis may be defined as the right-handed system from the z-axis and x-axis. An acousto-optic element is rotated around the z-axis, around the axis in a direction of propagation of an ultrasonic wave and around an axis B perpendicular to a plane formed by the z-axis and the direction of propagation of the ultrasonic wave, so that the attitude of the acousto-optic element to the incident light is adjusted.
REFERENCES:
"Optical Diffraction by Slow Acoustic Waves in TeO/sub 2/ With an Arbitrary Plane of Incidence"; Proklov V. et al.; Soviet Technical Physics Letters; vol. 5, No. 4, Apr. 1979; pp. 177-178 XP002079516, New York USA.
Patent Abstracts of Japan, vol. 013, No. 409 (P-931), Sep. 11, 1989 & JP 01 149029 A (Matsushita Electric Ind Co., Ltd.) Jun. 12, 1989, Abstract.
Patent Abstracts of Japan, vol. 007, No. 216 (P-225), Sep. 24, 1983 & JP 58 111020 A (Matsushita Denki Sangyo KK), Jul. 1, 1983 *Abstract.
Sumi Katsuto
Yamashita Akiko
Epps Georgia
Fuji Photo Film Co. , Ltd.
Letendre Suzanne
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