Patent US4838629A successfully refreshed from Google Patents.
US4838629A
Expired / Lapsed
US
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Reflector
Assignee: Toshiba Electric Equipment Corp
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Filing: 1988-03-29
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Granted: 1989-06-13
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Expires: 2008-03-29
Abstract
Abstract A reflector for use in combination with an illumination apparatus comprises a body and a reflection film deposited on one surface of the body. The reflection film is designed to allow passage of infrared rays and to reflect visible light. The body is made of a polyimide-based resin and a polyether ketone-based resin.
Inventors
- 👤 Tatsuo Maruyama
- 👤 Nobuo Matsushita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:25
CPC Classifications
B; B29; B29C; B29C51/00; F; F21; F21V; F21V7/00; F21V7/22; F21V7/24; F21V7/28; F21V9/00; F21V9/04; B29L; B29L2011/00; B29L2011/0083
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
86 words
A reflector for reflecting light emitted from a light source, comprising: a body made of a material selected from the group consisting of a polyimide-based resin and a polyether ketone-based resin, and having a thickness falling within a range of 50 μm to 300 μm; and; a reflection film deposited on said body to allow infrared rays to pass and reflect visible light, said film formed by alternately stacking a plurality of layers having high refractive indeces and a plurality of layers having low refractive indeces.
Claim 2
Dependent Claim
86 words
A reflector for reflecting light emitted from a light source, comprising: a body made of a material selected from the group consisting of a polyimide-based resin and a polyether ketone-based resin, and having a thickness falling within a range of 50 μm to 300 μm; and; a reflection film deposited on said body to allow infrared rays to pass and reflect visible light, said film formed by alternately stacking a plurality of layers having high refractive indeces and a plurality of layers having low refractive indeces.
Claim 3
Dependent Claim
18 words
A reflector according to claim 1, wherein said body is made from a sheet and has rib portions.
References Cited (Backward Citations)
US2914989A
Cited
US3099403A
Cited
US3944320A
Cited
JPS56114210A
Cited
JPH0662707A
Cited
JPH06158922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-12 | 1992-12-12 | 1993-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-12 | 1996-12-12 | 1997-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-12 | 2000-12-12 | 2001-06-13 | $7700.00 | Window Closed / Lapsed |