Patent US4776670A successfully refreshed from Google Patents.
US4776670A
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US
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Optical assembly
Assignee: US Philips Corp
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Filing: 1987-12-08
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Granted: 1988-10-11
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Expires: 2007-12-08
Abstract
Abstract An optical assembly comprises an elongate hollow body (11) of triangular cross-section, having three deformable side walls which adjoin each other and at least one optical element (1). Inside the body the optical element is secured without play to each of the side walls at a well-defined location and in a well-defined position by rigid local connections (15).
Inventors
- 👤 Henricus M. M. Kessels
- 👤 Francis J. Span
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:15
CPC Classifications
G; G02; G02B; G02B27/00; G02B7/00; G02B7/003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
68 words
An optical assembly comprising retaining means and at least one optical element retained by said means, characterized in that the retaining means comprise an elongate hollow body of triangular cross-section having three deformable side walls which adjoin each other, the optical element being secured to each of the side walls inside the body without play at a well-defined location and in a well-defined position by rigid local connection.
Claim 2
Dependent Claim
68 words
An optical assembly comprising retaining means and at least one optical element retained by said means, characterized in that the retaining means comprise an elongate hollow body of triangular cross-section having three deformable side walls which adjoin each other, the optical element being secured to each of the side walls inside the body without play at a well-defined location and in a well-defined position by rigid local connection.
Claim 3
Dependent Claim
21 words
An assembly as claimed in claim 1, characterized in that the body is constituted by a thin-wall tube of triangular cross-section.
Claim 4
Dependent Claim
48 words
An assembly as claimed in claim 2, the optical element being of circular cross-section, characterized in that at the location of circular cross-section the optical element has a diameter which is at least equal to the diameter of the inscribed circle of said tube in the non-deformed condition.
Claim 5
Dependent Claim
30 words
An assembly as claimed in claim 1, characterized in that the connections constitute at least substantially point-shaped contact spots between the optical element and the side walls of said body.
Claim 6
Dependent Claim
51 words
An assembly as claimed in claim 1, which in addition to said optical element comprises at least a second element, characterized in that the second element is secured in the body in a way similar to said optical element, each of the elements occupying stable position relative to the other element.
Claim 7
Dependent Claim
22 words
An assembly as claimed in claim 1, characterized in that the body is constituted by a thin-wall portion of a prismatic tube.
Claim 8
Dependent Claim
14 words
An optical structure comprising at least two optical assemblies as claimed in claim 1.
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) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |