US5613768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for generating parallel light using two arrayed mirrors
Assignee: Samsung Electronics Co Ltd
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Filing: 1995-09-05
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Granted: 1997-03-25
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Expires: 2015-09-05
Abstract
Abstract A parallel light generating apparatus uses two arrayed mirrors. The apparatus includes a parabolic mirror, a lamp located at the focal point of the parabolic mirror, and first and second arrayed mirrors disposed in parallel, each of which is divided into plural portions, with each portion being divided again into parts. A panel is situated between the arrayed mirrors and has a plurality of holes corresponding to each portion of both mirrors, for blocking non-parallel light.
Inventors
- 👤 Dong-ha Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:09
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/06; G02B5/00; G02B5/08; G02B5/10; F; F21; F21V; F21V13/00; F21V13/02; F21V13/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
A parallel light generating apparatus, comprising: a parabolic mirror; a lamp located at the focal point of said parabolic mirror and for generating parallel light reflected from said parabolic mirror, as well as non-parallel light; first and second arrayed disposed in parallel, each of which is divided into plural portions, each portion being divided again into parts, the first arrayed mirror disposed to receive the parallel light from the parabolic mirror and the non-parallel light; and a panel being situated said first and second arrayed mirrors and having a plurality of holes corresponding to each portion of said first and second arrayed mirrors, for passing the parallel light to the second arrayed mirror while blocking the non-parallel light.
Claim 2
Dependent Claim
118 words
A parallel light generating apparatus, comprising: a parabolic mirror; a lamp located at the focal point of said parabolic mirror and for generating parallel light reflected from said parabolic mirror, as well as non-parallel light; first and second arrayed disposed in parallel, each of which is divided into plural portions, each portion being divided again into parts, the first arrayed mirror disposed to receive the parallel light from the parabolic mirror and the non-parallel light; and a panel being situated said first and second arrayed mirrors and having a plurality of holes corresponding to each portion of said first and second arrayed mirrors, for passing the parallel light to the second arrayed mirror while blocking the non-parallel light.
Claim 3
Dependent Claim
25 words
The parallel light generating apparatus as set forth in claim 1, wherein each said part has a regular polygonal shape which forms a solid surface.
Claim 4
Dependent Claim
120 words
A parallel light generating apparatus, comprising: a parabolic mirror; a lamp located at the focal point of said parabolic mirror and for generating parallel light reflected from said parabolic mirror, as well as non-parallel light; first and second arrayed mirrors disposed in parallel, each of which is divided into plural portions, each portion being an aspherical concave mirror, the first arrayed mirror disposed to receive the parallel light from the parabolic mirror and the non-parallel light; and a panel being situated between said first and second arrayed mirrors and having a plurality of holes corresponding to each portion of said first and second arrayed mirrors, for passing the parallel light to the second arrayed mirror while blocking the non-parallel light.
Claim 5
Dependent Claim
120 words
A parallel light generating apparatus, comprising: a parabolic mirror; a lamp located at the focal point of said parabolic mirror and for generating parallel light reflected from said parabolic mirror, as well as non-parallel light; first and second arrayed mirrors disposed in parallel, each of which is divided into plural portions, each portion being an aspherical concave mirror, the first arrayed mirror disposed to receive the parallel light from the parabolic mirror and the non-parallel light; and a panel being situated between said first and second arrayed mirrors and having a plurality of holes corresponding to each portion of said first and second arrayed mirrors, for passing the parallel light to the second arrayed mirror while blocking the non-parallel light.
Claim 6
Dependent Claim
27 words
The parallel light generating apparatus as set forth in claim 3, wherein said aspherical concave mirrors respectively constituting said first and second arrayed mirrors are geometrically similar.
References Cited (Backward Citations)
US1324288A
Cited
US1618010A
Cited
US3494231A
Cited
US4241389A
Cited
US5138490A
Cited
US5219445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-24 | 2000-09-23 | 2001-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-24 | 2004-09-23 | 2005-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-24 | 2008-09-23 | 2009-03-25 | $7700.00 | Window Closed / Lapsed |