US5683622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical elements having color-selective and polarization-selective reflection containing LC pigments, and the production of these elements
Assignee: SICPA Holding SA
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Filing: 1995-05-05
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Granted: 1997-11-04
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Expires: 2015-05-05
Abstract
Abstract Wavelength-selective and polarization-selective optical elements contain pigments embedded in a transparent binder, in which the pigments include at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase.
Inventors
- 👤 Oliver Kratzschmar
- 👤 Thilo Gebhard
- 👤 Silvia Ehmann
- 👤 Franz-Heinrich Kreuzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:41
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; C; C09; C09K; C09K19/00; C09K19/04; C09K19/40; C09K19/406; C09K19/408; C09K19/52; C09K19/54; G02B; G02B5/00; G02B5/30; G02B5/3016
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
A wavelength-selective and polarization-selective optical element comprising a transparent binder containing pigments embedded therein; and wherein the pigments comprise at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase; and wherein refractive index of the transparent binder is equal to that of the LC pigments.
Claim 2
Dependent Claim
50 words
A wavelength-selective and polarization-selective optical element comprising a transparent binder containing pigments embedded therein; and wherein the pigments comprise at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase; and wherein refractive index of the transparent binder is equal to that of the LC pigments.
Claim 3
Dependent Claim
49 words
A process for the production of optical components, comprising providing a substrate; and applying pigments containing substance having a liquid-crystalline (LC) structure with a chiral phase in transparent binder systems to said substrate; and wherein refractive index of the transparent binder is equal to that of the LC pigments.
Claim 4
Dependent Claim
49 words
A process for the production of optical components, comprising providing a substrate; and applying pigments containing substance having a liquid-crystalline (LC) structure with a chiral phase in transparent binder systems to said substrate; and wherein refractive index of the transparent binder is equal to that of the LC pigments.
Claim 5
Dependent Claim
71 words
A process for the production of wavelength-selective and polarization-selective optical components, comprising mixing pigments having the properties of color reflection and polarization direction with a suitable transparent binder system; and polymerizing the transparent binder to produce an optical element containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase; and wherein the refractive index of the transparent binder is equal to that of the liquid-crystalline structure.
Claim 6
Dependent Claim
71 words
A process for the production of wavelength-selective and polarization-selective optical components, comprising mixing pigments having the properties of color reflection and polarization direction with a suitable transparent binder system; and polymerizing the transparent binder to produce an optical element containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase; and wherein the refractive index of the transparent binder is equal to that of the liquid-crystalline structure.
Claim 7
Dependent Claim
55 words
In a method of providing a color filter, the improvement which comprises utilizing pigments containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase embedded in a transparent binder; and wherein refractive index of the transparent binder is equal to that of the LC pigments, as said color filter.
Claim 8
Dependent Claim
55 words
In a method of providing a color filter, the improvement which comprises utilizing pigments containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase embedded in a transparent binder; and wherein refractive index of the transparent binder is equal to that of the LC pigments, as said color filter.
Claim 9
Dependent Claim
53 words
In a method of providing a polarizer, the improvement which comprises utilizing pigments containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase embedded in a transparent binder; and wherein refractive index of the transparent binder is equal to that of the LC pigments, as said polarizer.
Claim 10
Dependent Claim
53 words
In a method of providing a polarizer, the improvement which comprises utilizing pigments containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase embedded in a transparent binder; and wherein refractive index of the transparent binder is equal to that of the LC pigments, as said polarizer.
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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) | 2000-11-03 | 2001-05-05 | 2001-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-03 | 2005-05-05 | 2005-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-03 | 2009-05-05 | 2009-11-04 | $7700.00 | Window Closed / Lapsed |