Title:
GIMBAL ASSEMBLY
Document Type and Number:
WIPO Patent Application WO1988008145
Kind Code:
A3
Abstract:
A crystal modulator (20) is on an axis (19) which is positioned in translation and pivotal rotation with respect to another axis (17) of a laser. The crystal modulator (20) is supported in an inner housing (18) on axis (19). The inner housing is supported within an outer housing (16) which is affixed to the laser. Mating surfaces (32, 38) on the inner and outer housings are spherically contoured so that the inner housing may be pivoted about the center (24) of the extended sphere of the mating surfaces and thereby pivot axis (19) into coincidence with axis (17). An end (22) of the crystal modulator is positioned at this spherical center. Of two sets of four setscrews (26, 28) threaded into the outer housing, one set is disposed to contact the inner housing directly. The other set of screws is disposed to contact a ring (36) whose inner surface comprises one of the spherical surfaces. By adjustment of the screws, the axis of the inner housing may be linearly moved in a radial direction toward the laser optical axis until at least both axes intersect at the centerpoint (34) of the spherical surfaces. The set of setscrews (28) are adjusted to pivot the axis of the inner housing about the centerpoint of the spherical surfaces until the axes coincide.
Inventors:
ROMERO CHARLES (US)
Application Number:
PCT/US1988/000866
Publication Date:
November 17, 1988
Filing Date:
March 21, 1988
Export Citation:
Assignee:
HUGHES AIRCRAFT CO (US)
International Classes:
G02B7/00; G02F1/03; G12B3/00; (IPC1-7): G02B7/00; G12B3/00
Domestic Patent References:
| WO1984004991A1 | 1984-12-20 |
Foreign References:
| FR2044159A5 | 1971-02-19 | |||
| EP0177815A2 | 1986-04-16 |
Other References:
Soviet Inventions Illustrated, Week 36, 19th September 1986, Class P81, 86-237975/36 Derwent Publications Lts. (London, GB) & SU, A, 1210113 (SESLAVINSKII I.A.) 7 February 1986,
Instruments and Experimental Techniques, vol. 27, no. 5, Part 2, September-October 1984 (New York, US) L.S. Vasilenko et al.:"Device for adjusting a resonator and returning the frequency of a laser", pages 1267-1268,
IBM Technical Disclosure Bulletin, vol. 23, no. 11, April 1981 (New York, US) F. Grundon et al.: "Adjustable optics mounting assembly for vacuum use", pages 4941-4942
Instruments and Experimental Techniques, vol. 27, no. 5, Part 2, September-October 1984 (New York, US) L.S. Vasilenko et al.:"Device for adjusting a resonator and returning the frequency of a laser", pages 1267-1268,
IBM Technical Disclosure Bulletin, vol. 23, no. 11, April 1981 (New York, US) F. Grundon et al.: "Adjustable optics mounting assembly for vacuum use", pages 4941-4942
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