US3994569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tl3 PSe4 compound, single crystals, and acousto-optical devices
Assignee: Westinghouse Electric Corp
•
Filing: 1975-09-17
•
Granted: 1976-11-30
•
Expires: 1995-09-17
Abstract
Abstract The compound Tl3PSe4 is disclosed. Non-conducting single crystals of the compound are prepared which have outstanding acousto-optical properties including an exceptionally high acousto-optical figure of merit. The crystals are used in various acousto-optical devices including a display device, a laser modulator, a non-collinear acousto-optical filter, and an acoustic delay line.
Inventors
- 👤 Thelma J. Isaacs
- 👤 Milton S. Gottlieb
- 👤 John D. Feichtner
- 👤 Andrea A. Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:57
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/11; C; C01; C01B; C01B25/00; C30; C30B; C30B11/00; C30B29/00; C30B29/10; C30B29/46; H; H01; H01S; H01S3/00; H01S3/10; H01S3/106; H01S3/1068
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
52 words
A method of diffracting light comprising passing said light through a single crystal having the general formula Tl 3 X Se 4 where X is about 50 to about 100% phosphorus and about 0 to about 50% arsenic, while generating a sound wave at a diffracting angle to said light in said
Claim 2
Independent Claim
52 words
A method of diffracting light comprising passing said light through a single crystal having the general formula Tl 3 X Se 4 where X is about 50 to about 100% phosphorus and about 0 to about 50% arsenic, while generating a sound wave at a diffracting angle to said light in said
Claim 3
Dependent Claim
25 words
A method according to claim 1 wherein said single crystal is at least about 0.05 centimeters in diameter and at least about 1 centimeter long.
Claim 4
Dependent Claim
12 words
A method according to claim 1 wherein said single crystal has two
Claim 5
Dependent Claim
24 words
A method according to claim 1 wherein two sound waves are generated perpendicular to each other, and including the last step of directing said
Claim 6
Dependent Claim
14 words
A method according to claim 4 wherein said sound waves are in the Bragg
Claim 7
Dependent Claim
12 words
A method according to claim 4 wherein said light is polarized and
Claim 8
Dependent Claim
24 words
A method according to claim 4 wherein the source of said light is a laser which comprises a lasing medium positioned between two opposing
Claim 9
Dependent Claim
12 words
A method according to claim 7 wherein said single crystal is positioned
Claim 10
Dependent Claim
12 words
A method according to claim 7 wherein said single crystal is positioned
Claim 11
Dependent Claim
37 words
A method according to claim 1 wherein said single crystal is a rectangle, said sound waves move the length of said rectangle, and said light wave is incident to the face of said rectangle at a non-normal
Claim 12
Dependent Claim
12 words
A method according to claim 1 wherein said single crystal has the
Claim 13
Dependent Claim
71 words
An acousto-optical system comprising: 1. a single crystal having the general formula Tl 3 X Se 4 where X is about 50 to about 100% phosphorus and about 0 to about 50% arsenic; 2. means for passing light through said crystal; 3. means for generating a sound wave at a diffracting angle to said light in said crystal; and 4. means for detecting said light after it passes through said crystal.
Claim 14
Dependent Claim
71 words
An acousto-optical system comprising: 1. a single crystal having the general formula Tl 3 X Se 4 where X is about 50 to about 100% phosphorus and about 0 to about 50% arsenic; 2. means for passing light through said crystal; 3. means for generating a sound wave at a diffracting angle to said light in said crystal; and 4. means for detecting said light after it passes through said crystal.
Claim 15
Dependent Claim
23 words
An acousto-optical system according to claim 12 wherein said single crystal is at least about 0.05 centimeters in diameter and at least about
Claim 16
Dependent Claim
10 words
An acousto-optical system according to claim 12 wherein said single
Claim 17
Dependent Claim
33 words
An acousto-optical system according to claim 12 including means for generating a second sound wave perpendicular to the first sound wave, and including a viewing screen which is irradiated by said diffracted light.
Claim 18
Dependent Claim
10 words
An acousto-optical system according to claim 15 wherein said sound
Claim 19
Dependent Claim
11 words
An acousto-optical system according to claim 15 wherein said light is
Claim 20
Dependent Claim
33 words
An acousto-optical system according to claim 12 wherein the source of said light is a laser which comprises a lasing medium positioned between two opposing mirrors, one partially reflecting and the other totally
Claim 21
Dependent Claim
10 words
An acousto-optical system according to claim 18 wherein said single
Claim 22
Dependent Claim
22 words
An acousto-optical system according to claim 18 wherein said single crystal is positioned between said lasing medium and one of said mirrors.
Claim 23
Dependent Claim
46 words
An acousto-optical system according to claim 12 wherein said single crystal is a rectangle, said means for generating said sound wave generates said sound wave along the length of said rectangle, and said light wave is incident to the face of said rectangle at a non-normal
Claim 24
Dependent Claim
10 words
An acousto-optical system according to claim 12 wherein said single
Claim 25
Dependent Claim
55 words
An acoustic delay line comprising: 1. a single crystal having the general formula Tl 3 XSe 4 where X is about 50 to about 100% phosphorus and about 0 to about 50% arsenic; 2. means for generating sound waves in said crystal; and 3. means for detecting said sound waves after they have traversed said
Claim 26
Dependent Claim
55 words
An acoustic delay line comprising: 1. a single crystal having the general formula Tl 3 XSe 4 where X is about 50 to about 100% phosphorus and about 0 to about 50% arsenic; 2. means for generating sound waves in said crystal; and 3. means for detecting said sound waves after they have traversed said
Claim 27
Dependent Claim
21 words
An acoustic delay line according to claim 23 wherein said single crystal has the general formula Tl 3 PSe 4 .
References Cited (Backward Citations)
US3746866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |