US3898083A
Expired / Lapsed
US
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High sensitivity visible infrared photoconductor
Assignee: Xerox Corp
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Filing: 1973-01-05
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Granted: 1975-08-05
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Expires: 1993-01-05
Abstract
Abstract A photosensitive element which includes a photoconductive insulating layer comprising a vitreous alloy of selenium, bismuth and iodine.
Inventors
- 👤 William J Hillegas
- 👤 James H Neyhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:03
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/0436; G03G5/08; G03G5/082; G03G5/08207
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
39 words
A PHOTOSENSITIVE ELEMENT WHICH INCLUDES A PHOTOCONDUCTIVE INSULATING LAYER, SAID LAYER COMPRISING THE VITREOUS ALLOY OF SELENIUM, BISMUTH AND IODINE COMPRISING ABOUT 1 TO 5 ATOMIC PERCENT BISMUTH, 2 TO 5 ATOMIC PERCENT IODINE, WITH THE BALANCE SUBSTANTIALLY SELENIUM.
Claim 2
Dependent Claim
39 words
A PHOTOSENSITIVE ELEMENT WHICH INCLUDES A PHOTOCONDUCTIVE INSULATING LAYER, SAID LAYER COMPRISING THE VITREOUS ALLOY OF SELENIUM, BISMUTH AND IODINE COMPRISING ABOUT 1 TO 5 ATOMIC PERCENT BISMUTH, 2 TO 5 ATOMIC PERCENT IODINE, WITH THE BALANCE SUBSTANTIALLY SELENIUM.
Claim 3
Dependent Claim
26 words
The element of claim 1 in which the composition comprises about 3 atomic percent bismuth, about 3 atomic percent iodine and about 94 atomic percent selenium.
Claim 4
Dependent Claim
44 words
A photoreceptor member comprising an electrically conductive support member having a photoconductive insulating layer thereon, said photoconductive layer comprising a vitreous alloy of about 90 to 97 atomic percent selenium, 1 to 5 atomic percent of bismuth and 2 to 5 atomic percent iodine.
Claim 5
Dependent Claim
44 words
A photoreceptor member comprising an electrically conductive support member having a photoconductive insulating layer thereon, said photoconductive layer comprising a vitreous alloy of about 90 to 97 atomic percent selenium, 1 to 5 atomic percent of bismuth and 2 to 5 atomic percent iodine.
Claim 6
Dependent Claim
25 words
The member of claim 3 in which the photoconductor composition comprises about 94 atomic percent selenium, 3 atomic percent bismuth and 3 atomic percent iodine.
Claim 7
Dependent Claim
36 words
A photoreceptor member which comprises: a. a supporting member; b. a thin layer of a vitreous selenium-bismuth-iodine photoconductive alloy overlaying said support; and c. a layer of an electrically active organic material overlaying said photoconductive layer.
Claim 8
Dependent Claim
36 words
A photoreceptor member which comprises: a. a supporting member; b. a thin layer of a vitreous selenium-bismuth-iodine photoconductive alloy overlaying said support; and c. a layer of an electrically active organic material overlaying said photoconductive layer.
Claim 9
Dependent Claim
18 words
The member of claim 5 in which the photoconductive layer is about 0.03 to 1.0 microns in thickness.
Claim 10
Dependent Claim
18 words
The member of claim 6 in which the active layer is about 10 to 20 microns in thickness.
Claim 11
Dependent Claim
24 words
The member of claim 5 in which the active material comprises a material selected from the group consisting of polyvinyl carbazole and polyvinyl pyrene.
Claim 12
Independent Claim
75 words
A method of imaging comprising: a. providing a xerographic member which includes a photoconductive insulating layer having a composition comprising a vitreous alloy of selenium, bismuth and iodine in a concentration of about 1 to 5 atomic percent bismuth, 2 to 5 atomic percent iodine, with the balance substantially selenium; b. substantially uniformly electrostatically charging said member; and c. exposing said member to a pattern of active radiation to form a latent electrostatic image thereon.
Claim 13
Independent Claim
75 words
A method of imaging comprising: a. providing a xerographic member which includes a photoconductive insulating layer having a composition comprising a vitreous alloy of selenium, bismuth and iodine in a concentration of about 1 to 5 atomic percent bismuth, 2 to 5 atomic percent iodine, with the balance substantially selenium; b. substantially uniformly electrostatically charging said member; and c. exposing said member to a pattern of active radiation to form a latent electrostatic image thereon.
Claim 14
Dependent Claim
15 words
The method of claim 9 which further includes developing said image to make it visible.
References Cited (Backward Citations)
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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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |