Patent US6150653A successfully refreshed from Google Patents.
US6150653A
Expired / Lapsed
US
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Lens system for photodetectors
Assignee: Intel Corp
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Filing: 1999-02-16
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Granted: 2000-11-21
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Expires: 2019-02-16
Abstract
Abstract An photosensitive device may be formed with a diffractive lens which offsets chromatic aberrations and dispersion caused by a refractive capture lens. The diffractive lens may be formed of a sol-gel material having a photoinitiator, or other materials including those that may be defined with low temperature techniques commonly used in connection with photoresist.
Inventors
- 👤 Azar Assadi
- 👤 Kannan Raj
- 👤 Robert C. Sundahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:01
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/0025; G02B27/0037; G02B27/42; G02B27/4205; G02B27/4211; H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/03; H04N1/031; H04N1/0311; H04N25/00; H10; H10F; H10F39/00; H10F39/80; H10F39/806; H10F39/8063; H10F77/00; H10F77/30; H10F77/306; H10F77/331; H10F77/40; H10F77/413; G02B5/00; G02B5/18; G02B5/1876; G02B5/188; G02B5/1885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A photodetector comprising: a packaged photosensitive device; a diffractive lens arranged on said packaged photosensitive device, said lens formed of a sol-gel material including a photoinitiator, said lens having a stepped configuration including a plurality of surfaces stacked one upon the other; and a window formed over said packaged photosensitive device, said lens being formed over said window.
Claim 2
Dependent Claim
58 words
A photodetector comprising: a packaged photosensitive device; a diffractive lens arranged on said packaged photosensitive device, said lens formed of a sol-gel material including a photoinitiator, said lens having a stepped configuration including a plurality of surfaces stacked one upon the other; and a window formed over said packaged photosensitive device, said lens being formed over said window.
References Cited (Backward Citations)
US4733943A
Cited
EP0517409A1
Cited
WO1993021120A1
Cited
US5340978A
Cited
EP0658418A1
Cited
US5623473A
Cited
US5796514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-21 | 2004-05-22 | 2004-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-21 | 2008-05-22 | 2008-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-21 | 2012-05-22 | 2012-11-21 | $7700.00 | Window Closed / Lapsed |