Patent US4871411A successfully refreshed from Google Patents.
US4871411A
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Method of preparing volume type hologram film
Assignee: Canon Inc
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Filing: 1988-05-18
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Granted: 1989-10-03
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Expires: 2008-05-18
Abstract
Abstract A method of preparing a volume type phase hologram film comprises forming a volume type phase hologram in a polymer film formed on a substrate and comprises of a polymer of vinylcarbazoles, and separating the polymer film from the substrate. Preferably, the polymer film is separated from the substrate in a liquid inert to the hologram.
Inventors
- 👤 Nobuo Kushibiki
- 👤 Yoko Yoshinaga
- 👤 Naosato Taniguchi
- 👤 Tetsuro Kuwayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:27
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0005; G03F7/001; G03H; G03H1/00; G03H1/04; G03H1/18; G03H1/182; G03H1/02; G03H1/024; G03H1/0248; G03H1/0272; G03H2001/026; G03H2001/0264; G03H2240/00; G03H2240/10; G03H2240/11; G03H2250/00; G03H2250/12; G03H2270/00; G03H2270/20; G03H2270/21; G03H2270/30; G03H2270/31; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10T; Y10T156/00; Y10T156/11; Y10T156/1111; Y10T156/1116
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
47 words
A method of preparing a volume type phase hologram film, comprising forming a volume type phase hologram in a polymer film formed on a substrate and comprised of a polymer of vinylcarbazoles, and separating said polymer film from said substrate in a liquid inert to said hologram.
Claim 2
Independent Claim
47 words
A method of preparing a volume type phase hologram film, comprising forming a volume type phase hologram in a polymer film formed on a substrate and comprised of a polymer of vinylcarbazoles, and separating said polymer film from said substrate in a liquid inert to said hologram.
Claim 3
Dependent Claim
18 words
The method of claim 1, wherein said hologram film has a thickness ranging from 4 to 20 μm.
Claim 4
Dependent Claim
10 words
The method of claim 1, wherein said substrate is light-transmissive.
Claim 5
Dependent Claim
11 words
The method of claim 1, wherein said substrate has a rigidity.
Claim 6
Dependent Claim
10 words
The method of claim 1, wherein said substrate is glass.
Claim 7
Dependent Claim
28 words
The method of claim 1, wherein said substrate has a light transmittance of 30% or more at 400 nm and 40% or more at 450 to 800 nm.
Claim 8
Dependent Claim
21 words
The method of claim 1, wherein said liquid is water or an organic low-boiling solvent, or a mixed liquid of these.
Claim 9
Independent Claim
52 words
A method of preparing a volume type phase hologram member, comprising forming a volume type phase hologram in a polymer film formed on a substrate and comprised of a polymer of vinylcarbazoles, thereafter separating said polymer film from said substrate, and bringing the separated polymer film to be supported on another substrate.
Claim 10
Independent Claim
52 words
A method of preparing a volume type phase hologram member, comprising forming a volume type phase hologram in a polymer film formed on a substrate and comprised of a polymer of vinylcarbazoles, thereafter separating said polymer film from said substrate, and bringing the separated polymer film to be supported on another substrate.
Claim 11
Dependent Claim
18 words
The method of claim 8, wherein said polymer film has a thickness ranging from 4 to 20 μm.
Claim 12
Dependent Claim
10 words
The method of claim 8, wherein said substrate is light-transmissive.
Claim 13
Dependent Claim
11 words
The method of claim 8, wherein said substrate has a rigidity.
Claim 14
Dependent Claim
10 words
The method of claim 8, wherein said substrate is glass.
Claim 15
Dependent Claim
28 words
The method of claim 8, wherein said substrate has a light transmittance of 30% or more at 400 nm and 40% or more at 450 to 800 nm.
Claim 16
Dependent Claim
13 words
The method of claim 8, wherein said another substrate is a flexible substrate.
Claim 17
Dependent Claim
13 words
The method of claim 8, wherein said another substrate is a polymer film.
Claim 18
Dependent Claim
18 words
The method of claim 8, wherein said hologram member has a thickness ranging from 10 to 200 μm.
Claim 19
Dependent Claim
18 words
The method of claim 8, wherein said hologram member has a thickness ranging from 10 to 100 μm.
Claim 20
Dependent Claim
22 words
The method of claim 8, wherein said another substrate has a surface tension of 38 dyne/cm or more according to JIS K6768.
Claim 21
Independent Claim
59 words
A method of preparing a volume type phase hologram member, comprising forming a volume type phase hologram in a polymer film formed on a substrate and comprised of a polymer of vinylcarbazoles, thereafter separating said polymer film from said substrate in a liquid inert to said hologram, and bringing the separated polymer film to be supported on another substrate.
Claim 22
Independent Claim
59 words
A method of preparing a volume type phase hologram member, comprising forming a volume type phase hologram in a polymer film formed on a substrate and comprised of a polymer of vinylcarbazoles, thereafter separating said polymer film from said substrate in a liquid inert to said hologram, and bringing the separated polymer film to be supported on another substrate.
Claim 23
Dependent Claim
18 words
The method of claim 19, wherein said polymer film has a thickness ranging from 4 to 20 μm.
Claim 24
Dependent Claim
10 words
The method of claim 19, wherein said substrate is light-transmissive.
Claim 25
Dependent Claim
11 words
The method of claim 19, wherein said substrate has a rigidity.
Claim 26
Dependent Claim
10 words
The method of claim 19, wherein said substrate is glass.
Claim 27
Dependent Claim
28 words
The method of claim 19, wherein said substrate has a light transmittance of 30% or more at 400 nm and 40% or more at 450 to 800 nm.
Claim 28
Dependent Claim
21 words
The method of claim 19, wherein said liquid comprises water or an organic low-boiling solvent, or a mixed liquid of these.
Claim 29
Dependent Claim
13 words
The method of claim 19, wherein said another substrate comprises a flexible substrate.
Claim 30
Dependent Claim
13 words
The method of claim 19, wherein said another substrate comprises a polymer film.
Claim 31
Dependent Claim
18 words
The method of claim 19, wherein said hologram member has a thickness ranging from 10 to 200 μm.
Claim 32
Dependent Claim
18 words
The method of claim 19, wherein said hologram member has a thickness ranging from 10 to 100 μm.
Claim 33
Dependent Claim
22 words
The method of claim 19, wherein said another substrate has a surface tension of 38 dyne/cm or more according to JIS K6768.
Claim 34
Independent Claim
68 words
A method of preparing a volume type phase hologram film, comprising the steps of: forming a volume type phase hologram in a polymer film on a substrate, said polymer film comprising a vinylcarbazole polymer; separating said polymer film from said substrate; and supporting said hologram on said substrate such that a surface of the hologram which was not previously in contact with said substrate subsequently contacts said substrate.
Claim 35
Independent Claim
68 words
A method of preparing a volume type phase hologram film, comprising the steps of: forming a volume type phase hologram in a polymer film on a substrate, said polymer film comprising a vinylcarbazole polymer; separating said polymer film from said substrate; and supporting said hologram on said substrate such that a surface of the hologram which was not previously in contact with said substrate subsequently contacts said substrate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |