US5074646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planar reflective optical devices
Assignee: Nokia Bell Labs
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Filing: 1989-04-28
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Granted: 1991-12-24
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Expires: 2009-04-28
Abstract
Abstract Alignment difficulties in optical computing arrangements are overcome by integrating the optical components on a single substrate and arranging the elements in a manner that causes them to interact with one another to perform the desired function. The substrate has one or two major surfaces and the elements are grown or fabricated on those surfaces using conventional integrated circuit manufacturing techniques. Most advantageously, the position-sensitive optical devices are manufactured on one side. Reflective planar optical devices are obtained by applying a reflective layer over the fabricated planar optical devices.
Inventors
- 👤 Alan Huang
- 👤 Jurgen Jahns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:34
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/124
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
An optical structure comprising: a substrate; a level B planar optical device fabricated onto a surface of said substrate; and reflective means covering said level B planar optical device; wherein said level B planar optical device is fabricated by depositing materials onto said substrate to form stair-like structures on said substrate through mutlitple material deposit steps.
Claim 2
Dependent Claim
56 words
An optical structure comprising: a substrate; a level B planar optical device fabricated onto a surface of said substrate; and reflective means covering said level B planar optical device; wherein said level B planar optical device is fabricated by depositing materials onto said substrate to form stair-like structures on said substrate through mutlitple material deposit steps.
Claim 3
Dependent Claim
54 words
An optical structure comprising: a substrate; a level B planar optical device fabricated onto a surface of said substrate; and reflective means covering said level B planar optical device; wherein said planar optical device is fabricated by etching away from said substrate to form stair-like structures on said substrate through multiple material etching steps.
Claim 4
Dependent Claim
54 words
An optical structure comprising: a substrate; a level B planar optical device fabricated onto a surface of said substrate; and reflective means covering said level B planar optical device; wherein said planar optical device is fabricated by etching away from said substrate to form stair-like structures on said substrate through multiple material etching steps.
Claim 5
Dependent Claim
28 words
An optical structure comprising: a substrate; a mirrored surface placed on a surface of said substrate; and a level B planar optical device fabricated onto said mirrored surface.
Claim 6
Dependent Claim
28 words
An optical structure comprising: a substrate; a mirrored surface placed on a surface of said substrate; and a level B planar optical device fabricated onto said mirrored surface.
Claim 7
Dependent Claim
19 words
The structure of claim 3 wherein said planar optical device is fabricated by depositing materials onto said mirrored surface.
Claim 8
Dependent Claim
56 words
An optical structure comprising: a substrate; a mirrored surface placed on a surface of said substrate; and a level B planar optical device fabricated onto said mirrored surface wherein said planar optical device is fabricated by depositing materials onto said substrate, and wherein said depositing forms stair-like structures on said substrate through multiple material deposit steps.
Claim 9
Dependent Claim
56 words
An optical structure comprising: a substrate; a mirrored surface placed on a surface of said substrate; and a level B planar optical device fabricated onto said mirrored surface wherein said planar optical device is fabricated by depositing materials onto said substrate, and wherein said depositing forms stair-like structures on said substrate through multiple material deposit steps.
Claim 10
Dependent Claim
62 words
An optical system comprising: a transparent substrate having a first surface and a second surface; a plurality of reflective level B planar optical devices fabricated onto said first surface; and a mirror fabricated onto said second surface; wherein said plurality of reflective level B optical devices are arranged in an array that functions as a group that forms a macro optical device.
Claim 11
Dependent Claim
62 words
An optical system comprising: a transparent substrate having a first surface and a second surface; a plurality of reflective level B planar optical devices fabricated onto said first surface; and a mirror fabricated onto said second surface; wherein said plurality of reflective level B optical devices are arranged in an array that functions as a group that forms a macro optical device.
Claim 12
Dependent Claim
61 words
An optical system comprising: a transparent substrate having a first surface and a second surface; at least one planar level B optical device fabricated onto said first surface; and at least one planar level B optical device fabricated onto said second surface; wherein at least one of the planar level B optical devices is a reflective planar level B optical device.
Claim 13
Dependent Claim
61 words
An optical system comprising: a transparent substrate having a first surface and a second surface; at least one planar level B optical device fabricated onto said first surface; and at least one planar level B optical device fabricated onto said second surface; wherein at least one of the planar level B optical devices is a reflective planar level B optical device.
Claim 14
Dependent Claim
42 words
An optical system comprising: an opaque substrate; a plurality of reflective level B planar optical devices fabricated onto a surface of said substrate; and means for joining at least some of said reflective planar level B optical devices in concurrent optical cooperation.
Claim 15
Dependent Claim
42 words
An optical system comprising: an opaque substrate; a plurality of reflective level B planar optical devices fabricated onto a surface of said substrate; and means for joining at least some of said reflective planar level B optical devices in concurrent optical cooperation.
Claim 16
Dependent Claim
25 words
The system of claim 8 wherein said plurality of reflective level B optical devices are arranged in an array that forms a macro optical device.
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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) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |