Patent US3603670A successfully refreshed from Google Patents.
US3603670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directional panel adapted to control the passage of incident radiation
Assignee: Individual
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Filing: 1969-12-29
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Granted: 1971-09-07
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Expires: 1989-12-29
Abstract
Abstract A directionally transmissive optical panel or structure, which is adapted to control the passage therethrough of incident electromagnetic radiation in the visible and invisible spectral regions, is provided. The panel or structure is fabricated with a pair of transparent or translucent plates each having a flat surface and a corrugated surface generally including a series of peaks and valleys extending along the width or horizontal dimension of the respective plates, alternate sections of the corrugated surfaces being fashioned to have an opaque or reflective coating. The corrugated surfaces are maintained in interlocking intimate optical contact.
Inventors
- 👤 Sangbong Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:10
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/54; F; F21; F21V; F21V11/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A directionally transmissive optical panel comprising a pair of optically identical plates each having a first surface that is flat and a second surface that is corrugated, said corrugated surfaces being formed by a plurality of adjacently oriented elongate planar sections extending along one dimension of said plates, alternate ones of said planar sections having an opaque area extending for the length of said section wherein said second surfaces of said identical plates are secured in interlocking intimate optical contact.
Claim 2
Dependent Claim
80 words
A directionally transmissive optical panel comprising a pair of optically identical plates each having a first surface that is flat and a second surface that is corrugated, said corrugated surfaces being formed by a plurality of adjacently oriented elongate planar sections extending along one dimension of said plates, alternate ones of said planar sections having an opaque area extending for the length of said section wherein said second surfaces of said identical plates are secured in interlocking intimate optical contact.
Claim 3
Dependent Claim
26 words
The apparatus defined by claim 1 wherein said planar sections included in said corrugated second surfaces are arranged to form a series of peaks and valleys.
Claim 4
Dependent Claim
14 words
The apparatus defined by claim 1 wherein said pair of identical plates are transparent.
Claim 5
Dependent Claim
14 words
The apparatus defined by claim 1 wherein said pair of identical plates are translucent.
Claim 6
Dependent Claim
33 words
The apparatus defined by claim 1 wherein said second surfaces of said pair of identical plates are secured in interlocking intimate optical contact by the application of heat and pressure to said plates.
Claim 7
Dependent Claim
28 words
The apparatus defined by claim 1 wherein said second surfaces of said pair of identical plates are secured in interlocking intimate optical contact by an optically free adhesive.
Claim 8
Dependent Claim
19 words
The apparatus defined by claim 1 wherein alternate ones of said planar sections are oriented in a parallel relationship.
Claim 9
Dependent Claim
33 words
The apparatus defined by claim 1 wherein the opaque area of each of said alternate planar sections will obstruct the transmission, therethrough, of electromagnetic radiation in the infrared, visible and ultraviolet spectral regions.
Claim 10
Dependent Claim
16 words
The apparatus defined by claim 1 wherein said pair of optically identical plates are physically identical.
References Cited (Backward Citations)
US3393034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |