US4232952A
Expired / Lapsed
US
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Acousto-optic device
Assignee: Czech Academy of Sciences
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Filing: 1979-03-29
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Granted: 1980-11-11
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Expires: 1999-03-29
Abstract
Abstract A single crystal of pure or mixed univalent mercury halide is formed having a first face perpendicular to the direction [A] which is inclined about the crystallographic direction [110] by an angle α. The crystal is simultaneously inclined from the crystallographic direction [110] about the direction [A] by an angle β so that the two opposite faces for entrance and exit of the light wave are parallel to the direction [A] and [B]. The first face of the parallelepiped is provided with an acoustic wave.
Inventors
- 👤 Cestmir Barta
- 👤 Jiri Ctyroky
- 👤 Iraida M. Silvestrova
- 👤 Jurij V. Pisarevskij
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:24
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/0009
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
121 words
An acousto-optic device comprising a single crystal of pure or mixed univalent mercury halide formed in the shape of a parallelepiped having a first face provided with a source of acoustic wave, and a pair of opposite faces polished for the entrance and exit of light waves, said first face being perpendicular to the direction [A], said direction [A] being inclined from the crystallographic direction [110] about the crystallographic direction [110] by an angle α said crystal being simultaneously inclined from the crystallographic direction [110] about the direction [A] by an angle β so that the edge formerly parallel to the [110] direction points in the direction [B] and two opposite faces are simultaneously parallel to the directions [A] and [B].
Claim 2
Dependent Claim
121 words
An acousto-optic device comprising a single crystal of pure or mixed univalent mercury halide formed in the shape of a parallelepiped having a first face provided with a source of acoustic wave, and a pair of opposite faces polished for the entrance and exit of light waves, said first face being perpendicular to the direction [A], said direction [A] being inclined from the crystallographic direction [110] about the crystallographic direction [110] by an angle α said crystal being simultaneously inclined from the crystallographic direction [110] about the direction [A] by an angle β so that the edge formerly parallel to the [110] direction points in the direction [B] and two opposite faces are simultaneously parallel to the directions [A] and [B].
Claim 3
Dependent Claim
20 words
The device according to claim 1, wherein α is between 0.5° and 20° and β is between 0.5° and 15°.
References Cited (Backward Citations)
US3843234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |