US3644022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical mirror
Assignee: Heraeus Schott Quarzschmelze GmbH
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Filing: 1970-09-14
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Granted: 1972-02-22
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Expires: 1990-09-14
Abstract
Abstract An optical mirror essentially consisting of a material containing silicon dioxide, for example, quartz glass, comprising a reflective plate, a carrier plate, and a supporting frame intermediate said plates and connecting them to each other and having a honeycomb structure consisting of a plurality of hexagonal cells, in which the supporting frame is composed of a plurality of Y-shaped elements and the outer longitudinal edges of the three wings of each of these elements are welded together with the corresponding edges of the wings of the adjacent elements so that each hexagonal cell is formed by two wings of each of three adjacent elements.
Inventors
- 👤 Reinhard Jagdt
- 👤 Ingo Kloss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:27
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
An optical mirror essentially consisting of a material containing silicon dioxide and comprising a reflective plate, a carrier plate, and a supporting frame having a honeycomb structure intermediate said two plates and connecting the same to each other and forming a plurality of cells of a hexagonal cross section, wherein said supporting frame comprises a plurality of Y-shaped elements each including three wings having outer longitudinal edges welded to the corresponding edges of the adjacent Y-shaped elements.
Claim 2
Dependent Claim
77 words
An optical mirror essentially consisting of a material containing silicon dioxide and comprising a reflective plate, a carrier plate, and a supporting frame having a honeycomb structure intermediate said two plates and connecting the same to each other and forming a plurality of cells of a hexagonal cross section, wherein said supporting frame comprises a plurality of Y-shaped elements each including three wings having outer longitudinal edges welded to the corresponding edges of the adjacent Y-shaped elements.
Claim 3
Dependent Claim
28 words
An optical mirror as defined in claim 1, in which the adjacent wings of each Y-shaped element are disposed at an angle of substantially 120* to each other.
Claim 4
Dependent Claim
21 words
An optical mirror as defined in claim 1, in which said three wings of each Y-shaped element have the same length.
Claim 5
Dependent Claim
33 words
An optical mirror as defined in claim 1, in which at least one of said wings of each Y-shaped element has a length greater than at least one of the two other wings.
Claim 6
Dependent Claim
36 words
An optical mirror as defined in claim 1, in which one of said wings has a length at least 1.2 times greater than the length of the shortest of the other wings of the same element.
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |