US3582190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power mirror
Assignee: United States Department of the Navy
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Filing: 1970-02-24
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Granted: 1971-06-01
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Expires: 1990-02-24
Abstract
Abstract A mirror capable of reflecting high incident light density without distortion and without deteriorating as a result of residual absorption of the incident energy by providing a housing with a reflecting surface in the middle and an easily evaporable liquid to act as a heat transfer device within the housing.
Inventors
- 👤 Michael R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:03
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
174 words
A mirror for reflecting high densities of light flux, comprising: a. a housing having first and second ends and having an aperture extending therethrough along the longitudinal axis of said housing; b. a mirror support member mounted to said housing in said aperture; c. a mirror mounted in said support member dividing said aperture in first and second portions; d. a first end portion affixed to said housing and defining with said housing and said mirror a first enclosed portion; e. a second end portion transparent to a given frequency spectrum, that is reflected by said mirror, affixed to said housing and defining with said housing and said mirror a second enclosed portion; and f. a material in liquid state in said first enclosed portion that is easily evaporable to a gaseous state, said material moving by capillary action across the mirror and evaporated by the heat absorbed by said mirror to said gaseous state and said gaseous state condensing when in contact with said housing and end portions of said first enclosed portion.
Claim 2
Dependent Claim
174 words
A mirror for reflecting high densities of light flux, comprising: a. a housing having first and second ends and having an aperture extending therethrough along the longitudinal axis of said housing; b. a mirror support member mounted to said housing in said aperture; c. a mirror mounted in said support member dividing said aperture in first and second portions; d. a first end portion affixed to said housing and defining with said housing and said mirror a first enclosed portion; e. a second end portion transparent to a given frequency spectrum, that is reflected by said mirror, affixed to said housing and defining with said housing and said mirror a second enclosed portion; and f. a material in liquid state in said first enclosed portion that is easily evaporable to a gaseous state, said material moving by capillary action across the mirror and evaporated by the heat absorbed by said mirror to said gaseous state and said gaseous state condensing when in contact with said housing and end portions of said first enclosed portion.
Claim 3
Dependent Claim
22 words
The mirror of claim 1 wherein the second end portion is mounted at the brewster angle with respect to the longitudinal axis.
Claim 4
Dependent Claim
18 words
The mirror of claim 2 wherein the mirror consists of a substrate and a reflecting surface disposed thereupon.
Claim 5
Dependent Claim
25 words
The mirror of claim 3 wherein said mirror is held in said support member in a prestrained position to eliminate certain distortions due to heat.
Claim 6
Dependent Claim
29 words
The mirror of claim 4 wherein there is provided a passage between said first enclosed portion and said second enclosed portions to allow for a equalization of pressure therebetween.
Claim 7
Dependent Claim
35 words
The mirror of claim 5 wherein is provided a means for providing a predetermined difference of pressure between said first and second enclosed portions to control the deformation of said mirror in a predetermined manner.
Claim 8
Dependent Claim
13 words
The mirror of claim 6 wherein said housing is a substantially cylindrical shape.
Claim 9
Dependent Claim
16 words
The mirror of claim 7 wherein said mirror and mirror support member have substantially circular construction.
Claim 10
Dependent Claim
16 words
The mirror of claim 8 wherein said mirror is mounted substantially normal to the longitudinal axis.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |