Patent US4468094A successfully refreshed from Google Patents.
US4468094A
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US
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Dach mirror array
Assignee: Ricoh Co Ltd
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Filing: 1982-08-13
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Granted: 1984-08-28
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Expires: 2002-08-13
Abstract
Abstract A roof mirror array for use in an optical imaging apparatus includes a front and a rear surface on which a succession of chevron faces of an equal configuration are formed in a manner such that the peak of one of the surfaces is aligned with the valley of the other surface. The chevron faces on at least one of the front and the rear surface define a roof mirror surface. The array includes a holding frame which surrounds the outside portion of the central region between the chevron faces.
Inventors
- 👤 Toshiyuki Inokuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:58
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B17/00; G02B17/002; G02B17/02; G02B17/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
A roof mirror array comprising; a front and a rear surface on which a plurality of chevron faces of an equal configuration are formed so that a peak portion on a first surface of each of said chevron faces is aligned with a valley portion on a second surface of each of said chevron faces, wherein at least one of the first and second surfaces further comprises a roof mirror surface; and a holding frame disposed so as to surround an exterior portion of a central region between each of said plurality of chevron faces.
Claim 2
Dependent Claim
95 words
A roof mirror array comprising; a front and a rear surface on which a plurality of chevron faces of an equal configuration are formed so that a peak portion on a first surface of each of said chevron faces is aligned with a valley portion on a second surface of each of said chevron faces, wherein at least one of the first and second surfaces further comprises a roof mirror surface; and a holding frame disposed so as to surround an exterior portion of a central region between each of said plurality of chevron faces.
Claim 3
Dependent Claim
27 words
A roof mirror array according to claim 1 wherein the holding frame surrounds a part of said valley portions in each of the plurality of chevron faces.
Claim 4
Dependent Claim
29 words
A roof mirror array according to claim 1 wherein the holding frame extends between said valley portion of each of the plurality of chevron faces on the second surfaces.
Claim 5
Dependent Claim
25 words
A roof mirror array according to claim 1 wherein the holding frame entirely surrounds said valley portions of each of the plurality of chevron faces.
Claim 6
Dependent Claim
33 words
A roof mirror array according to claim 4 wherein the the holding frame which surrounds said valley portions of each of the plurality of chevron faces further comprises a tapered inner wall surface.
Claim 7
Dependent Claim
26 words
A roof mirror array according to claim 5 wherein the holding frame further comprises an internal wall surface having a plurality of minute irregularities formed therein.
References Cited (Backward Citations)
DE3106539A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |