US5073008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicolor interference filters with side surfaces to prevent entry of undesirable light
Assignee: Fujifilm Corp
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Filing: 1991-03-14
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Granted: 1991-12-17
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Expires: 2011-03-14
Abstract
Abstract An interference filter includes a multi-coated interference filter layer of dielectric substances deposited on a transparent base plate and extinction members applied to side surfaces of the transparent base plate. A multi-color interference filter has at least two such interference filters having different spectral characteristics closely connected to each other through the extinction members and cemented to a transparent base plate which is formed with a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which the interference filter is cemented.
Inventors
- 👤 Takaaki Terashita
- 👤 Setsuo Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:11
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/28; G02B5/285; G02B1/00; G02B1/10; G02B1/11; G02B1/113; G02B1/115; G02B1/116; G02B5/201
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
86 words
An interference filter for preventing entry of undesirable light, comprising: a transparent base plate; a multi-coated interference filter layer deposited on said transparent base plate; extinction members applied to side surfaces of said transparent base plate; wherein each of said extinction members is a thin film painted on said side surfaces of said transparent base plate; and wherein said thin film painted on said side surfaces of said transparent base plate is colored substantially the same color as that of light passed through said interference filter.
Claim 2
Dependent Claim
86 words
An interference filter for preventing entry of undesirable light, comprising: a transparent base plate; a multi-coated interference filter layer deposited on said transparent base plate; extinction members applied to side surfaces of said transparent base plate; wherein each of said extinction members is a thin film painted on said side surfaces of said transparent base plate; and wherein said thin film painted on said side surfaces of said transparent base plate is colored substantially the same color as that of light passed through said interference filter.
Claim 3
Dependent Claim
86 words
An interference filter for preventing entry of undesirable light, comprising: a transparent base plate; a multi-coated interference filter layer deposited on said transparent base plate; extinction members applied to side surfaces of said transparent base plate; wherein each of said extinction members is a thin sheet attached to said side surfaces of said transparent base plate; and wherein said thin sheet attached to said side surfaces of said transparent base plate is colored substantially the same color as that of light passed through said interference filter.
Claim 4
Dependent Claim
86 words
An interference filter for preventing entry of undesirable light, comprising: a transparent base plate; a multi-coated interference filter layer deposited on said transparent base plate; extinction members applied to side surfaces of said transparent base plate; wherein each of said extinction members is a thin sheet attached to said side surfaces of said transparent base plate; and wherein said thin sheet attached to said side surfaces of said transparent base plate is colored substantially the same color as that of light passed through said interference filter.
Claim 5
Dependent Claim
59 words
A multi-color interference for preventing entry of undesirable light, comprising: at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented on a transparent base support; wherein said transparent base support has a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which said interference filters are cemented.
Claim 6
Dependent Claim
59 words
A multi-color interference for preventing entry of undesirable light, comprising: at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented on a transparent base support; wherein said transparent base support has a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which said interference filters are cemented.
Claim 7
Dependent Claim
24 words
A multi-color interference filter as defined in claim 3, wherein each said transparent base plate has a side surface finished as a mirror surface.
Claim 8
Dependent Claim
24 words
A multi-color interference filter as defined in claim 4, wherein said mirror surface is of a roughness smaller than a wavelength of visible light.
Claim 9
Dependent Claim
27 words
A multi-color interference filter as defined in claim 4, wherein said mirror surface is of a roughness smaller than a half of a wavelength of visible light.
Claim 10
Dependent Claim
87 words
A multi-color interference filter for preventing entry of undesirable light, comprising: at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented on a transparent base support; wherein each of said interference filters comprises a separate transparent base plate and a multi-coated interference layer of dielectric substances deposited on said separate transparent base plate; wherein said transparent base support has a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which said interference filters are cemented.
Claim 11
Dependent Claim
87 words
A multi-color interference filter for preventing entry of undesirable light, comprising: at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented on a transparent base support; wherein each of said interference filters comprises a separate transparent base plate and a multi-coated interference layer of dielectric substances deposited on said separate transparent base plate; wherein said transparent base support has a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which said interference filters are cemented.
Claim 12
Dependent Claim
24 words
A multi-color interference filter as defined in claim 7, wherein each said transparent base plate has a side surface finished as a mirror surface.
Claim 13
Dependent Claim
24 words
A multi-color interference filter as defined in claim 8, wherein said mirror surface is of a roughness smaller than a wavelength of visible light.
Claim 14
Dependent Claim
27 words
A multi-color interference filter as defined in claim 8, wherein said mirror surface is of a roughness smaller than a half of a wavelength of visible light.
Claim 15
Dependent Claim
96 words
A multi-color interference filter for preventing entry of undesirable light, comprising: a transparent base support, at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented to said transparent base support, each of said interference filters comprising a transparent base plate and a multi-coated interference layer of dielectric substances deposited on said transparent base plate; and extinction members applied between said interference filters; wherein said transparent base support has a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which said interference filter is cemented.
Claim 16
Dependent Claim
96 words
A multi-color interference filter for preventing entry of undesirable light, comprising: a transparent base support, at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented to said transparent base support, each of said interference filters comprising a transparent base plate and a multi-coated interference layer of dielectric substances deposited on said transparent base plate; and extinction members applied between said interference filters; wherein said transparent base support has a multi-coated anti-reflection layer deposited on one surface opposite to a surface to which said interference filter is cemented.
Claim 17
Dependent Claim
94 words
A multi-color interference filter for preventing entry of undesirable light, comprising: a transparent base support; at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented to said transparent base support, each of said interference filters comprising a transparent base plate and a multi-coated interference layer of dielectric substances deposited on said transparent base plate; and extinction members applied between said interference filters; wherein said extinction member is a thin film painted on a side surface of said transparent base plate of each said interference filter.
Claim 18
Dependent Claim
94 words
A multi-color interference filter for preventing entry of undesirable light, comprising: a transparent base support; at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented to said transparent base support, each of said interference filters comprising a transparent base plate and a multi-coated interference layer of dielectric substances deposited on said transparent base plate; and extinction members applied between said interference filters; wherein said extinction member is a thin film painted on a side surface of said transparent base plate of each said interference filter.
Claim 19
Dependent Claim
26 words
A multi-color interference filter as defined in claim 12, wherein said thin film painted to said side surface of said transparent base plate is colored black.
Claim 20
Dependent Claim
43 words
A multi-color interference filter as defined in claim 12, wherein said thin film painted to said side surface of said transparent base plate of each said interference filter is colored substantially the same color as that of light passed through said interference filter.
Claim 21
Dependent Claim
102 words
A multi-color interference filter for preventing entry of undesirable light, comprising: a transparent base support; at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented to said transparent base support, each of said interference filters comprising a transparent base plate and a multi-coated interference layer of dielectric substances deposited on said transparent base plate; and extinction members applied between said interference filters; wherein said extinction member is a thin sheet disposed between said side surfaces of said transparent base plates of said two interference filters; and wherein said thin sheet is colored black.
Claim 22
Dependent Claim
102 words
A multi-color interference filter for preventing entry of undesirable light, comprising: a transparent base support; at least two interference filters, having different spectral characteristics, closely connected and horizontally adjacent to each other and cemented to said transparent base support, each of said interference filters comprising a transparent base plate and a multi-coated interference layer of dielectric substances deposited on said transparent base plate; and extinction members applied between said interference filters; wherein said extinction member is a thin sheet disposed between said side surfaces of said transparent base plates of said two interference filters; and wherein said thin sheet is colored black.
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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) | 1994-12-16 | 1995-06-17 | 1995-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-16 | 1999-06-17 | 1999-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-16 | 2003-06-17 | 2003-12-17 | $7700.00 | Window Closed / Lapsed |