US4630180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light emitting diode array
Assignee: Toshiba Corp
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Filing: 1985-06-07
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Granted: 1986-12-16
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Expires: 2005-06-07
Abstract
Abstract A plurality of light emitting diode pellets arranged on a base are surrounded by a partition member and an outer frame member fixed on the base to mount an elongated lens on the opening portion thereof. A certain number of partition members are arranged between the base and the lens having recessed portions so as to partition each pellet or groups of several pellets. The upper ends of the partition members are inserted into recessed portions of the lens. Thus, when an arbitrary light emitting diode pellet is energized, light from the energized pellet does not spread to the non-light emitting pellet portions, thus clearly discriminating between the light emitting portions and non-light emitting portions.
Inventors
- 👤 Katsuo Muraki
- 👤 Kiyokazu Honda
- 👤 Takaki Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/04; F21V5/043; F21S; F21S4/00; F21S4/20; H; H10; H10H; H10H29/00; H10H29/80; H10H29/85; H10H29/855; F21Y; F21Y2103/00; F21Y2103/10; F21Y2115/00; F21Y2115/10; H10H20/00; H10H20/80; H10H20/85; H10H20/855; H10W; H10W90/00; Y; Y10; Y10S; Y10S362/00; Y10S362/80
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
A light emitting diode array comprising: (a) a base, (b) a plurality of light emitting diode pellets arranged on said base, (c) an outer frame member having one opening portion fastened to said base so as to surround said light emitting diode pellets, (d) a lens having at least one recessed portion provided so as to cover the other opening portion of said outer frame member, and (e) at least one partition member provided between said base and said recessed portion of said lens so as to partition said plurality of light emitting diode pellets in an arrangement direction, one end portion of said partition member positioned at the side of said lens being inserted into said recessed portion, (f) said partition member being non-light transmitting, whereby off-axis radiation emitted by one of said pellets which would otherwise be transmitted through said lens in said arrangement direction towards an adjacent section of said lens overlying an adjacent pellet will be prevented from being so transmitted, resulting in more clearly defined image boundaries when selected pellets are energized while others are not.
Claim 2
Dependent Claim
181 words
A light emitting diode array comprising: (a) a base, (b) a plurality of light emitting diode pellets arranged on said base, (c) an outer frame member having one opening portion fastened to said base so as to surround said light emitting diode pellets, (d) a lens having at least one recessed portion provided so as to cover the other opening portion of said outer frame member, and (e) at least one partition member provided between said base and said recessed portion of said lens so as to partition said plurality of light emitting diode pellets in an arrangement direction, one end portion of said partition member positioned at the side of said lens being inserted into said recessed portion, (f) said partition member being non-light transmitting, whereby off-axis radiation emitted by one of said pellets which would otherwise be transmitted through said lens in said arrangement direction towards an adjacent section of said lens overlying an adjacent pellet will be prevented from being so transmitted, resulting in more clearly defined image boundaries when selected pellets are energized while others are not.
Claim 3
Dependent Claim
22 words
A light emitting diode array as set forth in claim 1, wherein said partition member is provided every each adjacent diode pellet.
Claim 4
Dependent Claim
22 words
A light emitting diode array as set forth in claim 1, wherein said partition member is provided every plural adjacent diode pellets.
Claim 5
Dependent Claim
23 words
A light emitting diode array as set forth in claim 1, wherein said plurality of diode pellets are arranged in a zigzag form.
Claim 6
Dependent Claim
25 words
A light emitting diode array as set forth in claim 1, wherein said lens is formed at its lower portion V-shaped in lateral cross section.
Claim 7
Dependent Claim
25 words
A light emitting diode array as set forth in claim 1, wherein said lens is formed at its lower portion semicircular in lateral cross section.
Claim 8
Dependent Claim
21 words
A light emitting diode array as set forth in claim 1, wherein said lens is formed circular in lateral cross section.
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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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |