US4888201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a diffuse reflector
Assignee: US Philips Corp
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Filing: 1987-10-13
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Granted: 1989-12-19
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Expires: 2007-10-13
Abstract
Abstract Diffuse reflectors are manufactured by depositing a reflecting material (5) on a synthetic resin layer (1) a top layer of which is roughened by treatment in a freon-containing plasma or by means of UV radiation. The layer (5) of reflecting material may also be deposited on the resin layer (1) at an elevated temperature.
Inventors
- 👤 Hendrik Veenvliet
- 👤 Antonius H. M. Raaymakers
- 👤 Maarten J. Verkerk
- 👤 Arnold H. Witjes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:32
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/02; G02B5/0205; G02B5/021; G02B5/0221; B; B29; B29D; B29D11/00; B29D11/00605; G02B5/0268; G02B5/0273; G02B5/0284; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133553; G02F2201/00; G02F2201/12; G02F2203/00; G02F2203/02
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
76 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of (a) providing a layer of synthetic resin on a substrate layer, (b) forming a profile on a top surface layer of said synthetic resin by the steps of irradiating said top surface layer with UV radiation, and subsequently heating to a temperature of between 180° C. and 250° C., and (c) etching said profile at least partly into said substrate layer.
Claim 2
Independent Claim
76 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of (a) providing a layer of synthetic resin on a substrate layer, (b) forming a profile on a top surface layer of said synthetic resin by the steps of irradiating said top surface layer with UV radiation, and subsequently heating to a temperature of between 180° C. and 250° C., and (c) etching said profile at least partly into said substrate layer.
Claim 3
Dependent Claim
30 words
A method of manufacturing according to claim 1, wherein after said step (c), a further step of providing the etched surface with a layer of reflecting material is carried out.
Claim 4
Dependent Claim
16 words
A method of manufacturing according to claim 2, wherein said reflecting material is silver or aluminum.
Claim 5
Dependent Claim
35 words
A method of manufacturing according to claim 1, wherein said substrate layer consists of a reflecting material, and wherein said step (c) is carried out until said profile is completely etched into said substrate layer.
Claim 6
Dependent Claim
16 words
A method of manufacturing according to claim 4, wherein said reflecting material is silver or aluminum.
Claim 7
Dependent Claim
30 words
A method of manufacturing according to claim 1, wherein said step (a) is carried out by depositing said substrate layer and said layer of synthetic resin on a supporting plate.
Claim 8
Independent Claim
83 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of (a) providing a layer of synthetic resin on a substrate layer, (b) forming a profile on a top surface layer of said synthetic resin by the steps of treating said top surface layer to a plasma of polyhalogenated hydrocarbons containing fluorine and carbon, and then heating to a temperature of between 180° C. and 250° C., and (c) etching said profile at least partly into said substrate layer.
Claim 9
Independent Claim
83 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of (a) providing a layer of synthetic resin on a substrate layer, (b) forming a profile on a top surface layer of said synthetic resin by the steps of treating said top surface layer to a plasma of polyhalogenated hydrocarbons containing fluorine and carbon, and then heating to a temperature of between 180° C. and 250° C., and (c) etching said profile at least partly into said substrate layer.
Claim 10
Dependent Claim
30 words
A method of manufacturing according to claim 7, wherein after said step (c), a further step of providing the etched surface with a layer of reflecting material is carried out.
Claim 11
Dependent Claim
16 words
A method of manufacturing according to claim 8, wherein said reflecting material is silver or aluminum.
Claim 12
Dependent Claim
35 words
A method of manufacturing according to claim 7, wherein said substrate layer consists of a reflecting material, and wherein said step (c) is carried out until said profile is completely etched into said substrate layer.
Claim 13
Dependent Claim
16 words
A method of manufacturing according to claim 10, wherein said reflecting material is silver or aluminum.
Claim 14
Dependent Claim
30 words
A method of manufacturing according to claim 7, wherein said step (a) is carried out be depositing said substrate layer and said layer of synthetic resin on a supporting plate.
Claim 15
Independent Claim
78 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of: (a) providing a layer of a synthetic resin, (b) forming a surface pattern in a top surface layer of said synthetic resin by treating said top layer to a plasma of polyhalogenated hydrocarbons containing fluorine and carbon, and then heating to a temperature of between 180° C. and 250° C., and (c) coating the patterned top layer with a layer of reflecting material.
Claim 16
Independent Claim
78 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of: (a) providing a layer of a synthetic resin, (b) forming a surface pattern in a top surface layer of said synthetic resin by treating said top layer to a plasma of polyhalogenated hydrocarbons containing fluorine and carbon, and then heating to a temperature of between 180° C. and 250° C., and (c) coating the patterned top layer with a layer of reflecting material.
Claim 17
Dependent Claim
32 words
A method of manufacturing according to claim 13, wherein step (c) of coating is carried out by depositing a metal to a thickness of at least 0.4 micrometers at an elevated temperature.
Claim 18
Dependent Claim
18 words
A method of manufacturing according to claim 14, wherein said metal layer is one of silver or aluminum.
Claim 19
Dependent Claim
25 words
A method of manufacturing according to claim 13, wherein step (a) is carried out by depositing said layer of synthetic resin on a supporting plate.
Claim 20
Independent Claim
71 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of: (a) providing a layer of a synthetic resin, (b) forming a surface pattern in a top surface layer of said synthetic resin by irradiating said top layer with UV radiation, and subsequently heating to a temperature of between 180° C. and 250° C., and, (c) coating the patterned top layer with a layer of reflecting material.
Claim 21
Independent Claim
71 words
A method of manufacturing a diffuse reflector having a surface pattern comprising the steps of: (a) providing a layer of a synthetic resin, (b) forming a surface pattern in a top surface layer of said synthetic resin by irradiating said top layer with UV radiation, and subsequently heating to a temperature of between 180° C. and 250° C., and, (c) coating the patterned top layer with a layer of reflecting material.
Claim 22
Dependent Claim
33 words
A method of manufacturing according to claim 17, wherein step (c) of coating is carried out by depositing a metal layer to a thickness of at least 0.4 micrometers at an elevated temperature.
Claim 23
Dependent Claim
18 words
A method of manufacturing according to claim 18, wherein said metal layer is one of silver or aluminum.
Claim 24
Dependent Claim
25 words
A method of manufacturing according to claim 17, wherein step (a) is carried out by depositing said layer of synthetic resin on a supporting plate.
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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) | 1992-12-18 | 1993-06-19 | 1993-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-18 | 1997-06-19 | 1997-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-18 | 2001-06-19 | 2001-12-19 | $7700.00 | Window Closed / Lapsed |