US3630809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pellucid laminates
Assignee: Monsanto Co
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Filing: 1969-08-01
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Granted: 1971-12-28
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Expires: 1989-08-01
Abstract
Abstract A pellucid laminate for selectively reflecting infrared radiation and transmitting visible wavelengths of radiation. The laminate includes a pair of outer panels. A relatively thin member formed of plastic has a multilayer dielectric film deposited on one surface thereof and a monolayer dielectric film deposited upon the opposite surface thereof. The multilayer film engages a relatively thin plastic film formed on the interior surface of one of the panels. The film is in the order of magnitude of thickness of the multilayer film so that during the lamination process any particles in the multilayer film will not become disoriented. The monolayer film in combination with the multilayer film is designed to cause some reflection of the transmitted visible radiation. A relatively thick interior panel is disposed beneath the monolayer film and may have incorporated therein light-absorbing compounds in order to reduce angular dependency. A number of methods of laminating the various components are also disclosed.
Inventors
- 👤 James W Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:52
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/28; G02B5/281; G02B5/282; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10174; B32B17/1055; B32B17/10761; B32B27/00; B32B27/36; B32B2307/00; B32B2307/40; B32B2307/412; B32B2307/416; B32B2329/00; B32B2329/06; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
147 words
A pellucid laminate for selective reflectance and transmittance of selective wavelengths of radiation over an extended spectral range, said laminate comprising first and second spaced panels transparent in the wavelength range of radiation to be transmitted, a plastic layer which is relatively thin with respect to said spaced panels, said plastic layer being disposed against the interiorly presented surface of said first panel and being transparent in the wavelength range of radiation to be transmitted, and a selective interference filter disposed between said second panel and said plastic layer and being designed to reflect radiation of a given wavelength range, said plastic layer having a thickness in the order of magnitude of said interference filter, said plastic layer being sufficiently thin so that disorientation of particles of said interference filter occurs in a direction substantially planar to the surface of said first panel facing said interference filter.
Claim 2
Dependent Claim
31 words
The pellucid laminate of claim 2 further characterized in that the selective interference filter is a multilayer filter having alternating layers of material having high and low indices of refraction respectively.
Claim 3
Dependent Claim
172 words
A pellucid laminate for selective reflectance and transmittance of selective wavelength of radiation over an extended spectral range, said laminate comprising first aNd second spaced panels transparent in the wavelength range of radiation to be transmitted, a transparent plastic layer which is relatively thin with respect to said spaced panels and being disposed against the interiorly presented surface of said first panel, a relatively thin support panel interposed between said second panel and said relatively thin transparent plastic layer and being transparent in the wavelength range of radiation to be transmitted, and a selective interference filter disposed between said support panel and said plastic layer and being designed to reflect radiation of a given wavelength range and transmit radiation of a given wavelength range, said relatively thin transparent plastic layer having a thickness in the order of magnitude of said interference filter and being sufficiently thin so that disorientation of particles of said interference filter occurs in a direction substantially planar to the surface of said first panel facing said interference filter.
Claim 4
Dependent Claim
31 words
The pellucid laminate of claim 4 further characterized in that the selective interference filter is a multilayer filter having alternating layers of material having high and low indices of refraction respectively.
Claim 5
Dependent Claim
15 words
The pellucid laminate of claim 4 further characterized in that said panels are substantially rigid.
Claim 6
Dependent Claim
134 words
A pellucid laminate for selective reflectance and transmittance of selective wavelength of radiation over an extended spectral range, said laminate comprising first and second spaced panels transparent in the wavelength range of radiation to be transmitted, a transparent plastic layer disposed against the interiorly presented surface of said first panel, and having a thickness to provide for protection of an interference filter, a support panel interposed between said second panel and said transparent plastic layer and being transparent in the wavelength range of radiation to be transmitted, and a selective interference filter disposed between said support panel and said plastic layer and being designed to reflect radiation of a given wavelength range, said transparent plastic layer having a thickness within the range of 0.5 micron to 10.0 microns to enable protection of said filter.
Claim 7
Dependent Claim
20 words
The pellucid laminate of claim 7 further characterized in that said support panel is formed of a polyvinyl butyral material.
Claim 8
Dependent Claim
24 words
The pellucid laminate of claim 7 further characterized in that said support panel and plastic layer are both formed of a polyvinyl butyral material.
Claim 9
Dependent Claim
131 words
A pellucid laminate for selective reflectance and transmittance of selective wavelength of radiation over an extended spectral range, said laminate comprising first and second spaced panels transparent in the wavelength range of radiation to be transmitted, a relatively thin transparent plastic layer disposed against the interiorly presented surface of said first panel, a relatively thin support panel interposed between said second panel and said relatively thin transparent plastic layer and being transparent in the wavelength range of radiation to be transmitted, and a selective interference filter disposed between said support panel and said plastic layer and being designed to reflect radiation of a given wavelength range and transmit radiation of a given wavelength range, said relatively thin transparent plastic layer having a thickness in the range of 0.5 to 10.0 microns.
Claim 10
Dependent Claim
31 words
The pellucid laminate of claim 10 further characterized in that the selective interference filter is a multilayer filter having alternating layers of material having high and low indices of refraction respectively.
Claim 11
Dependent Claim
156 words
A pellucid laminate for selective reflectance and transmittance of selective wavelength of radiation over an extended spectral range, said laminate comprising first and second spaced panels transparent in the wavelength range of radiation to be transmitted, a transparent plastic layer which is relatively thin with respect to said spaced panels and being disposed against tHe interiorly presented surface of said first panel, a relatively thin support panel interposed between said second panel and said relatively thin transparent plastic layer and being transparent in the wavelength range of radiation to be transmitted, a selective multilayer interference filter disposed between said support panel and said plastic layer and being designed to reflect radiation of a given wavelength range and transmit radiation of a given wavelength range, and a monolayer interference filter disposed between said support panel and said second panel, said relatively thin transparent plastic layer having a thickness in the order of magnitude of said interference filter.
Claim 12
Dependent Claim
31 words
The pellucid laminate of claim 12 further characterized in that the selective interference filter is a multilayer filter having alternating layers of material having high and low indices of refraction respectively.
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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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |