Patent US5802310A successfully refreshed from Google Patents.
Patent EP0466975A1 successfully refreshed from Google Patents.
EP0466975A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Semiconductor light-emitting device
Assignee: Mitsubishi Electric Corp
•
Filing: 1990-12-14
•
Granted: —
•
Expires: 2010-12-14
Abstract
Abstract A semiconductor light-emitting device which provides optically undistorted light includes a semiconductor light-emitting element (1) and at least one optical element (8). The light emitting-element (1) and the optical element (8) are sealed and held in a resin (5) which is transparent to light emitted from the light-emitting element in such a predetermined positional relationship with each other that light emitted from the light-emitting element travels through the optical element. The entire optical path (6a) from the light-emitting element to the light entrance portion (8a) of the optical element (8) extends within the resin (5), with the light exit portion (8b) of the optical element (8) being located outside of the resin (5).
Inventors
- 👤 Kazuyoshi Hasegawa
- 👤 Mitsuo Ishii
- 👤 Masayuki Kubota
- 👤 Seiichi Nagai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 18:41
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/852; H10H20/853; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4204; G02B6/4212; H10H20/855; H10H20/856
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
A semiconductor light-emitting device comprising: a semiconductor light-emitting element (1); an optical element (8, 9) disposed in a predetermined positional relationship with said light-emitting element (1) such that light (6) emitted from said light-emitting element (1) travels through said optical element (8, 9); and a resin (5) sealing and holding said semiconductor light-emitting element (1) and said optical element (8, 9) in said predetermined positional relationship, said resin being transparent to light (6) emitted from said light-emitting element (1); wherein said resin (5) seals said semiconductor light-emitting element(1) and said optical element (8, 9) in such a manner that the end surface (8b) of said optical element (8) from which light (6) emitted from said semiconductor light-emitting element (1) exists from said semiconductor light-emitting device is not covered by said resin (5) and the entire optical path for light emitted from said light-emitting element extending from said light-emitting element (1) to the light entrance portion (8a, 8b, 9a) of said optical element (8, 9) is located within said resin (5).
Claim 2
Dependent Claim
170 words
A semiconductor light-emitting device comprising: a semiconductor light-emitting element (1); an optical element (8, 9) disposed in a predetermined positional relationship with said light-emitting element (1) such that light (6) emitted from said light-emitting element (1) travels through said optical element (8, 9); and a resin (5) sealing and holding said semiconductor light-emitting element (1) and said optical element (8, 9) in said predetermined positional relationship, said resin being transparent to light (6) emitted from said light-emitting element (1); wherein said resin (5) seals said semiconductor light-emitting element(1) and said optical element (8, 9) in such a manner that the end surface (8b) of said optical element (8) from which light (6) emitted from said semiconductor light-emitting element (1) exists from said semiconductor light-emitting device is not covered by said resin (5) and the entire optical path for light emitted from said light-emitting element extending from said light-emitting element (1) to the light entrance portion (8a, 8b, 9a) of said optical element (8, 9) is located within said resin (5).
Claim 3
Dependent Claim
39 words
A semiconductor light-emitting device according to claim 1 wherein, in said optical path extending in said resin (5) between said semiconductor light-emitting element (1) and said optical element (9), there is disposed at least one additional optical element (10).
Claim 4
Dependent Claim
20 words
A semiconductor light-emitting device according to claim 1 or 2 wherein said resin (5) is a cyclic aliphatic epoxy resin.
Claim 5
Dependent Claim
16 words
A semiconductor light-emitting device according to claim 1 or 2 wherein said resin is diglycidyl ester.
Claim 6
Dependent Claim
41 words
A semiconductor light-emitting element according to one of claims 1 to 4 wherein said optical element (8, 9) is a member selected from the group consisting of a beam splitter (8), an optical fiber (9), a lens and a glass plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.