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US4599537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
IR light emitting apparatus with visible detection means
Assignee: Omron Corp
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Filing: 1983-04-27
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Granted: 1986-07-08
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Expires: 2003-04-27
Abstract
Abstract An infrared light emitting element and an infrared/invisible conversion fluroescent substance are provided, and infrared rays to be generated from said infrared light emitting element are emitted outside, and simultaneously part of said infrared rays is illuminated on said fluorescent substance and visible light rays to be generated from said fluorescent substance are emitted outside through an optical fiber.
Inventors
- 👤 Shigeaki Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:52
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/851; H10H20/8515; F; F21; F21K; F21K2/00; F21K2/005; B; B29; B29C; B29C33/00; B29C33/02; B29C33/06; H10H20/8516; H10W; H10W74/00; H10W90/00; H10W90/701; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
77 words
A light emitting apparatus capable of simultaneously emitting infrared rays and visible rays, comprising in combination: a sealed infrared light emitting element which emits infrared light to the outside of said apparatus; a fluorescent substance which converts infrared into visible light located in proximity to said infrared light emitting element; and an optical fiber means connected with said fluorescent substance which guides the visible light rays produced by said fluorescent substance to the outside of said apparatus.
Claim 2
Dependent Claim
77 words
A light emitting apparatus capable of simultaneously emitting infrared rays and visible rays, comprising in combination: a sealed infrared light emitting element which emits infrared light to the outside of said apparatus; a fluorescent substance which converts infrared into visible light located in proximity to said infrared light emitting element; and an optical fiber means connected with said fluorescent substance which guides the visible light rays produced by said fluorescent substance to the outside of said apparatus.
Claim 3
Dependent Claim
22 words
The light emitting apparatus of claim 1 wherein said sealed light emitting element is made of Si doped GaAs light emitting diode.
Claim 4
Dependent Claim
18 words
The light emitting apparatus of claim 1 wherein said sealed light emitting element is molded with transparent resin.
Claim 5
Dependent Claim
30 words
The light emitting apparatus of claim 3 wherein the transparent resin molding said infrared light emitting element has a semi-spherical portion serving as a main emission portion of infrared rays.
Claim 6
Dependent Claim
40 words
The light emitting apparatus of claim 4 wherein the transparent resin molding said infrared light emitting element is formed into substantially columnar shape having at its top end a semi-spherical portion serving as a main emission portion of infrared rays.
Claim 7
Dependent Claim
29 words
The light emiting apparatus of claim 1 wherein said sealed light emitting element is sealed in a package having a window portion through which infrared rays are emitted outside.
Claim 8
Dependent Claim
31 words
The light emitting apparatus of claim 1 wherein said sealed light emitting element is formed into one semiconductor chip and said semiconductor chip has plural light emission areas on its surface.
Claim 9
Dependent Claim
42 words
The light emitting apparatus of claim 7 wherein said semiconductor chip has on its surface one light emission area in the shape of a spot and plural light emission areas in the shape of an arc arranged to encircle the spot area.
Claim 10
Dependent Claim
17 words
The light emitting apparatus of claim 1 wherein said fluorescent substance is of fluorolanthanide family fluorescent substance.
Claim 11
Dependent Claim
20 words
The light emitting apparatus of claim 3 wherein said fluorescent substance is formed by being dispersed in the transparent resin.
Claim 12
Dependent Claim
34 words
The light emitting apparatus of claim 4 wherein said fluorescent substance is dispersed in the transparent resin and formed into the shape of a ring and this ring is embedded around said semi-spherical portion.
Claim 13
Dependent Claim
21 words
The light emitting apparatus of claim 7 wherein part of said plural light emission areas is covered by said fluorescent substance.
Claim 14
Dependent Claim
38 words
The light emitting apparatus of claim 8 wherein said plural light emission areas in the shape of an arc are covered in the shape of a ring by the transparent resin in which said fluorescent substance is dispersed.
Claim 15
Dependent Claim
28 words
The light emitting apparatus of claim 3 wherein holes drilled in said transparent resin molding said infrared light emitting element are filled with said infrared/visible conversion fluorescent substance.
Claim 16
Dependent Claim
23 words
The light emitting apparatus of claim 14 wherein said fluorescent substance in said holes is sealed by a lid made of transparent resin.
Claim 17
Dependent Claim
36 words
The light emitting apparatus of claim 14 wherein one end of said optical fiber is inserted into said hole and fixed thereto for the purpose of guiding outside visible light rays generated from said fluorescent substance.
Claim 18
Dependent Claim
50 words
The light emitting apparatus of claim 6 wherein said fluorescent substance is arranged near at the side of said infrared light emitting element in said package and an optical fiber for guiding outside visible light rays generated from said fluorescent substance is installed so that it penetrates through said package.
Claim 19
Dependent Claim
25 words
The light emitting apparatus of claim 1 wherein said fluorescent substance is arranged sideways from the main optical axis of said infrared light emitting element.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |