Patent US3625593A successfully refreshed from Google Patents.
US3625593A
Expired / Lapsed
US
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Electrical control of light polarization utilizing the optical property of fluids
Assignee: RCA Corp
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Filing: 1969-02-03
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Granted: 1971-12-07
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Expires: 1989-02-03
Abstract
Abstract The electrical control of light polarization utilizing the optical properties of fluids. A container of fluid is placed in the path of a polarized light beam, and the polarization of the light is changed an amount dependent upon the effective dimensions of the container and the optical characteristics of the fluid. Means responsive to the change in polarization are included for either deflecting, or varying the intensity of, the polarized light.
Inventors
- 👤 George W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:50
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/28; G02B27/286
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
58 words
In combination: a source of plane polarized light; a single transparent container in the path of the light; at least two different optically active fluids, each such fluid, when in said container, rotating the plane of polarization of the plane polarized light through a different angle; and means for individually adding and removing said fluids from said container.
Claim 2
Dependent Claim
58 words
In combination: a source of plane polarized light; a single transparent container in the path of the light; at least two different optically active fluids, each such fluid, when in said container, rotating the plane of polarization of the plane polarized light through a different angle; and means for individually adding and removing said fluids from said container.
Claim 3
Dependent Claim
86 words
In combination: a source of polarized light; a two-state device having a single optical chamber in the path of the light which in one state said optical chamber contains fluid of the type which changes the polarization of the light, and which in the other state contains fluid of the type which does not affect the polarization of the light; means for controlling the state of said device; and means responsive to the amount of change in said polarization for varying the intensity of the light.
Claim 4
Dependent Claim
86 words
In combination: a source of polarized light; a two-state device having a single optical chamber in the path of the light which in one state said optical chamber contains fluid of the type which changes the polarization of the light, and which in the other state contains fluid of the type which does not affect the polarization of the light; means for controlling the state of said device; and means responsive to the amount of change in said polarization for varying the intensity of the light.
Claim 5
Dependent Claim
20 words
The combination claimed in claim 2, said fluid of the type which changes the polarization of light comprising a liquid.
Claim 6
Dependent Claim
93 words
In combination: a source of polarized light; a two-state device having a single optical chamber in the path of the light; means for placing said device in one state comprising means for filling said chamber with a fluid of the type which changes the polarization of the light, and for placing said device in its other state comprising means for filling said chamber with a fluid of the type which does not affect the polarization of the light; and means responsive to the amount of change in said polarization for deflecting the light.
Claim 7
Dependent Claim
93 words
In combination: a source of polarized light; a two-state device having a single optical chamber in the path of the light; means for placing said device in one state comprising means for filling said chamber with a fluid of the type which changes the polarization of the light, and for placing said device in its other state comprising means for filling said chamber with a fluid of the type which does not affect the polarization of the light; and means responsive to the amount of change in said polarization for deflecting the light.
Claim 8
Dependent Claim
115 words
In combination: a fluid which changes the plane of polarization of light; means for directing a plane polarized beam of light through said fluid; means for changing the length of the path in said fluid taken by said light; an element responsive solely to each different path length through said fluid taken by said light for correspondingly affecting, to an extent which is a given function of path length, a characteristic of said light; and an element which includes deflection means stationary relative to said plane polarized light beam responsive to each different path length through said fluid taken by said light for affecting the deflection of light solely as a function of path length.
Claim 9
Dependent Claim
115 words
In combination: a fluid which changes the plane of polarization of light; means for directing a plane polarized beam of light through said fluid; means for changing the length of the path in said fluid taken by said light; an element responsive solely to each different path length through said fluid taken by said light for correspondingly affecting, to an extent which is a given function of path length, a characteristic of said light; and an element which includes deflection means stationary relative to said plane polarized light beam responsive to each different path length through said fluid taken by said light for affecting the deflection of light solely as a function of path length.
Claim 10
Dependent Claim
87 words
In combination: a fluid which changes the plane of polarization of light; means for directing a plane polarized beam of light through said fluid; means for changing the length of the path in said fluid taken by said light in n linear increments, where n is an integer greater than 2; and an element responsive solely to each different path length through said fluid taken by said light for correspondingly affecting, to an extent which is a given function of path length, a characteristic of said light.
Claim 11
Dependent Claim
87 words
In combination: a fluid which changes the plane of polarization of light; means for directing a plane polarized beam of light through said fluid; means for changing the length of the path in said fluid taken by said light in n linear increments, where n is an integer greater than 2; and an element responsive solely to each different path length through said fluid taken by said light for correspondingly affecting, to an extent which is a given function of path length, a characteristic of said light.
Claim 12
Dependent Claim
97 words
In combination: a fluid which changes the plane of polarization of light; means for dIrecting a plane polarized beam of light through said fluid; means for changing the length of the path in said fluid taken by said light comprising means for varying said length in n linear increments in a geometric progression, where n is an integer greater than unity; and an element responsive solely to each different path length through said fluid taken by said light for correspondingly affecting, to an extent which is a given function of path length, a characteristic of said light.
Claim 13
Dependent Claim
97 words
In combination: a fluid which changes the plane of polarization of light; means for dIrecting a plane polarized beam of light through said fluid; means for changing the length of the path in said fluid taken by said light comprising means for varying said length in n linear increments in a geometric progression, where n is an integer greater than unity; and an element responsive solely to each different path length through said fluid taken by said light for correspondingly affecting, to an extent which is a given function of path length, a characteristic of said light.
Claim 14
Independent Claim
70 words
A method of modulating the intensity of plane polarized light comprising the steps of: directing the light through a fluid of the type which changes the plane of polarization of said light; selectively incrementally changing the length of the path through the fluid taken by the light; and correspondingly for each path length changing the intensity of the light emerging from the fluid solely as a function of path length.
Claim 15
Independent Claim
70 words
A method of modulating the intensity of plane polarized light comprising the steps of: directing the light through a fluid of the type which changes the plane of polarization of said light; selectively incrementally changing the length of the path through the fluid taken by the light; and correspondingly for each path length changing the intensity of the light emerging from the fluid solely as a function of path length.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |