US6150653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 12:46
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)
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WO1993021120A1
Cited
US5340978A
Cited
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US5623473A
Cited
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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 |