US4756972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated optical component
Assignee: US Philips Corp
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Filing: 1984-06-08
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Granted: 1988-07-12
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Expires: 2004-06-08
Abstract
Abstract Laminated optical component, for example an aspherical lens, comprising a supporting member which is manufactured from a transparent inorganic material and on at least one side has a layer of lacquer of a specific composition cured by means of radiation, for example UV radiation.
Inventors
- 👤 Johan G. Kloosterboer
- 👤 Robert G. Gossink
- 👤 Gerardus M. M. Van de Hei
- 👤 Johannes M. G. Verhoeven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:09
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/02; G02B3/04; C; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C08; C08F; C08F222/00; C08F222/10; C08F222/1006; C08F222/102; C09; C09D; C09D4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A laminated optical component comprising a transparent supporting member formed of an inorganic material to at least one surface of which supporting member there is adhesively bonded by copolymerization with a monomer adhering to said supporting member a thin layer of a radiation cured lacquer the free surface of which layer is shaped by a mould, said lacquer comprising at least 50% by weight of a compound of the formula ##STR5## wherein R 1 is hydrogen or methyl, R is a moiety of the formula --O--R.sub.2 -- or --O--R.sub.3 --OR.sub.4 -- wherein R 2 is alkylene of 2-8 carbon atoms or hydroxyl substitution products thereof, R 3 and R 4 are each independently alkylenes of 1-4 carbon atoms and m=0 or 1.
Claim 2
Dependent Claim
122 words
A laminated optical component comprising a transparent supporting member formed of an inorganic material to at least one surface of which supporting member there is adhesively bonded by copolymerization with a monomer adhering to said supporting member a thin layer of a radiation cured lacquer the free surface of which layer is shaped by a mould, said lacquer comprising at least 50% by weight of a compound of the formula ##STR5## wherein R 1 is hydrogen or methyl, R is a moiety of the formula --O--R.sub.2 -- or --O--R.sub.3 --OR.sub.4 -- wherein R 2 is alkylene of 2-8 carbon atoms or hydroxyl substitution products thereof, R 3 and R 4 are each independently alkylenes of 1-4 carbon atoms and m=0 or 1.
Claim 3
Dependent Claim
18 words
A laminated optical component as claimed in claim 1, characterized in that the compound satisfies the formula ##STR6##
Claim 4
Dependent Claim
27 words
A laminated optical component as claimed in claim 1, characterized in that the lacquer comprises a mixture of a compound of formula 1 and an aromatic monoacrylate.
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) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |