US4750826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical assembly comprising a holder and an optical element
Assignee: US Philips Corp
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Filing: 1986-12-23
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Granted: 1988-06-14
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Expires: 2006-12-23
Abstract
Abstract Optical assembly comprising a holder (1) having an inner wall (9) on which a plurality of parallel ribs (11) are formed and an optical element (3) having an outer wall (7), a plurality of gaps (13) being formed between this outer wall and the ribs. The ribs are sufficiently narrow to present a substantially line-shaped contact area to the outer wall. The optical element is connected to the holder by means of an adhesive which is applied exclusively in said gaps.
Inventors
- 👤 Nicolaus Maan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:11
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/08; G11B7/09; G02; G02B; G02B7/00; G02B7/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
An optical assembly with an optical axis, comprising a holder with an interior space bounded by an inner wall and an optical element mounted in said holder and having an outer wall, an adhesive being applied between the inner wall of the holder and the outer wall of the optical element, characterized in that on one of the walls at least three ribs are formed whose crests face the other wall, said ribs extending at least substantially parallel to the optical axis of the assembly, each of said ribs having a width substantially narrower than its length so that each rib presents a substantially line-shaped contact area to said other wall, a number of gaps equal to the number of ribs being formed between ribs and the other wall, in which gaps the adhesive is applied.
Claim 2
Dependent Claim
136 words
An optical assembly with an optical axis, comprising a holder with an interior space bounded by an inner wall and an optical element mounted in said holder and having an outer wall, an adhesive being applied between the inner wall of the holder and the outer wall of the optical element, characterized in that on one of the walls at least three ribs are formed whose crests face the other wall, said ribs extending at least substantially parallel to the optical axis of the assembly, each of said ribs having a width substantially narrower than its length so that each rib presents a substantially line-shaped contact area to said other wall, a number of gaps equal to the number of ribs being formed between ribs and the other wall, in which gaps the adhesive is applied.
Claim 3
Dependent Claim
32 words
An optical assembly as claimed in claim 1, characterized in that on the inner wall of the holder at least one locating surface is formed, on which surface the optical element bears.
Claim 4
Dependent Claim
68 words
An optical assembly as claimed in claim 1, the inner wall of the holder being cylindrical and the outer wall of the optical element being annular, characterized in that the ribs are formed on the inner wall of the holder and are spaced uniformly over the inner circumference of the holder, and in that the holder is provided with a plurality of locating surfaces disposed between the ribs.
Claim 5
Dependent Claim
19 words
An optical assembly as in claim 1 wherein equal amounts of adhesive are applied in each of said gaps.
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) | 1991-06-14 | 1991-12-14 | 1992-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-14 | 1995-12-14 | 1996-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-14 | 1999-12-14 | 2000-06-14 | $7700.00 | Window Closed / Lapsed |