US4696884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Member having photosensitive layer with series of smoothly continuous non-parallel interfaces
Assignee: Canon Inc
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Filing: 1985-02-26
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Granted: 1987-09-29
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Expires: 2005-02-26
Abstract
Abstract A light-receiving member comprises a light-receiving layer of a multi-layer structure having at least one photosensitive layer on a substrate, said photosensitive layer having at least one pair of non-parallel interfaces within a short range and said non-parallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickness direction, each of said non-parallel interfaces being smoothly continuous in the direction in which they are arranged.
Inventors
- 👤 Keishi Saitoh
- 👤 Masahiro Kanai
- 👤 Tetsuo Sueda
- 👤 Teruo Misumi
- 👤 Yoshio Tsuezuki
- 👤 Kyosuke Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:45
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/047; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; G03G5/08228; G03G5/08235; G03G5/08242; G03G5/10; G03G5/104
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
183 words
A light-receiving member comprising a light-receiving layer of a multi-layer structure having at least one photosensitive layer on a substrate, said light-receiving layer having at least one pair of non-parallel interfaces within a short range and said non-parallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickess direction, each of said non-parallel interfaces being smoothly continuous in the direction in which they are arranged and wherein said at least one pair of non-parallel interfaces has a cycle length (l)≦ the spot size of incident light and the difference in thickness of the layer between the non-parallel interfaces at said cycle l, is ≧λ/2 n wherein λ is the wavelength of said incident light and n is the refractive index of said layer, whereby the tendency of said layer to form interference fringes is suppressed since the direction of said incident light reflected from one of said interfaces of said light-receiving layer is different from the direction of light emitted by the reflection of said incident light from the other of said interfaces.
Claim 2
Dependent Claim
183 words
A light-receiving member comprising a light-receiving layer of a multi-layer structure having at least one photosensitive layer on a substrate, said light-receiving layer having at least one pair of non-parallel interfaces within a short range and said non-parallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickess direction, each of said non-parallel interfaces being smoothly continuous in the direction in which they are arranged and wherein said at least one pair of non-parallel interfaces has a cycle length (l)≦ the spot size of incident light and the difference in thickness of the layer between the non-parallel interfaces at said cycle l, is ≧λ/2 n wherein λ is the wavelength of said incident light and n is the refractive index of said layer, whereby the tendency of said layer to form interference fringes is suppressed since the direction of said incident light reflected from one of said interfaces of said light-receiving layer is different from the direction of light emitted by the reflection of said incident light from the other of said interfaces.
Claim 3
Dependent Claim
13 words
A light-receiving member according to claim 1, wherein the arrangement is made regularly.
Claim 4
Dependent Claim
14 words
A light-receiving member according to claim 1, wherein the arrangement is made in cycles.
Claim 5
Dependent Claim
15 words
A light-receiving member according to claim 1, wherein the short range is 0.3 to 500μ.
Claim 6
Dependent Claim
29 words
A light-receiving member according to claim 1, wherein the non-parallel interfaces are formed on the basis of the smooth unevenness arranged regularly provided on the surface of said substrate.
Claim 7
Dependent Claim
20 words
A light-receiving member according to claim 5, wherein the said unevenness is formed by the projections of sine wave shape.
Claim 8
Dependent Claim
12 words
A light-receiving member according to claim 1, wherein the substrate is cylindrical.
Claim 9
Dependent Claim
25 words
A light-receiving member according to claim 7, wherein the projection of the sine wave shape has a spiral structure within the plane of said substrate.
Claim 10
Dependent Claim
16 words
A light-receiving member according to claim 8, wherein the spiral structure is a multiple spiral structure.
Claim 11
Dependent Claim
21 words
A light-receiving member according to claim 6, wherein the projection of sine wave shape is divided in its edge line direction.
Claim 12
Dependent Claim
29 words
A light-receiving member according to claim 7, wherein the edge line direction of the projection of the sine wave shape is along the center axis of the cylindrical substrate.
Claim 13
Dependent Claim
14 words
A light-receiving member according to claim 5, wherein the smooth enevenness has inclined planes.
Claim 14
Dependent Claim
14 words
A light-receiving member according to claim 12, wherein the inclined planes are mirror finished.
Claim 15
Dependent Claim
37 words
A light-receiving member according to claim 5, wherein on the free surface of the light-receiving layer is formed a smooth unevenness arranged with the same pitch as that of the smooth unevenness provided on the substrate surface.
Claim 16
Dependent Claim
18 words
A light-receiving member according to claim 1, wherein the photosensitive layer comprises an amorphous material containing silicon atoms.
Claim 17
Dependent Claim
16 words
A light-receiving member according to claim 15, wherein hydrogen atoms are contained in the photosensitive layer.
Claim 18
Dependent Claim
24 words
A light-receiving member according to claim 5, wherein the pitch of the recessed portions of the smooth unevenness is 0.3 μm to 500 μm.
Claim 19
Dependent Claim
24 words
A light-receiving member according to claim 5, wherein the maximum depth of the recessed portions of the unevenness is 0.1 μm to 5 μm.
Claim 20
Dependent Claim
25 words
A light-receiving member according to claim 1, wherein the light-receiving layer has a charge injection preventive layer as its constituent layer on the substrate side.
Claim 21
Dependent Claim
22 words
A light-receiving member according to claim 19, wherein a substance (C) for controlling conductivity is contained in the charge injection preventive layer.
Claim 22
Dependent Claim
30 words
A light-receiving member according to claim 20, wherein the content of the substance (C) for controlling conductivity in the charge injection preventive layer is 0.001 to 5×10 4 atomic ppm.
Claim 23
Dependent Claim
21 words
A light-receiving member according to claim 19, wherein the charge injection preventive layer has a thickness of 30 Å to 10μ.
Claim 24
Dependent Claim
19 words
A light-receiving member according to claim 1, wherein the photosensitive layer has a thickness of 1 to 100 μm.
Claim 25
Dependent Claim
19 words
A light-receiving member according to claim 1, wherein a substance for controlling conductivity is contained in the photosensitive layer.
Claim 26
Dependent Claim
26 words
A light-receiving member according to claim 24, wherein the content of the substance for controlling conductivity in the photosensitive layer is 0.001 to 1000 atomic ppm.
Claim 27
Dependent Claim
16 words
A light-receiving member according to claim 15, wherein hydrogen atoms are contained in the photosensitive layer.
Claim 28
Dependent Claim
23 words
A light-receiving member according to claim 26, wherein the content of hydrogen atoms in the photosensitive layer is 1 to 40 atomic %.
Claim 29
Dependent Claim
16 words
A light-receiving member according to claim 15, wherein halogen atoms are contained in the photosensitive layer.
Claim 30
Dependent Claim
23 words
A light-receiving member according to claim 28, wherein the content of halogen atoms in the photosensitive layer is 1 to 40 atomic %.
Claim 31
Dependent Claim
19 words
A light-receiving member according to claim 15, wherein hydrogen atoms and halogen atoms are contained in the photosensitive layer.
Claim 32
Dependent Claim
29 words
A light-receiving member according to claim 30, wherein the sum of the contents of hydrogen atoms and halogen atoms in the photosensitive layer is 1 to 40 atomic %.
Claim 33
Dependent Claim
28 words
A light-receiving member according to claim 1, wherein the light-receiving layer has a barrier layer comprising an electrically insulating material on the substrate side as its constituent layer.
Claim 34
Dependent Claim
29 words
A light-receiving member according to claim 32, wherein the electrically insulating material is selected from Al 2 O 3 , SiO 2 , Si 3 N 4 and polycarbonate.
Claim 35
Dependent Claim
27 words
A light-receiving member according to claim 15, wherein the light-receiving layer contains at least one kind of atoms selected from oxygen atoms, carbon atoms and nitrogen atoms.
Claim 36
Dependent Claim
33 words
A light-receiving member according to claim 15, wherein the light-receiving layer has a layer region (OCN) containing at least one kind of atoms (OCN) selected from oxygen atoms, carbon atoms and nitrogen atoms.
Claim 37
Dependent Claim
30 words
A light-receiving member according to claim 35, wherein the distribution concentration C (OCN) of the atoms (OCN) contained in the layer region (OCN) is uniform in the layer thickness direction.
Claim 38
Dependent Claim
30 words
A light-receiving member according to claim 35, wherein the distribution concentration C (OCN) of the atoms (OCN) contained in the layer region (OCN) is ununiform in the layer thickness direction.
Claim 39
Dependent Claim
26 words
A light-receiving member according to claim 35, wherein the layer region (OCN) is provided at the end portion on the substrate side of the light-receiving layer.
Claim 40
Dependent Claim
25 words
A light-receiving member according to claim 35, wherein the content of the atoms (OCN) in the layer region (OCN) is 0.001 to 50 atomic %.
Claim 41
Dependent Claim
46 words
A light-receiving member according to claim 35, wherein the proportion of the layer thickness of the layer region (OCN) occupied in the light-receiving layer is 2/5 or higher and the content of the atoms (OCN) in the layer region (OCN) is 30 atomic % or less.
Claim 42
Dependent Claim
33 words
A light-receiving member according to claim 37, wherein said ununiform distributed state has a portion in which the depth profile is decreased toward the side of the free surface of said light-receiving layer.
Claim 43
Dependent Claim
28 words
A light-receiving member according to claim 37, wherein said ununiform distributed state has a portion in which the depth profile is increased toward the side of said substrate.
Claim 44
Dependent Claim
31 words
A light-receiving member according to claim 37, wherein said ununiform distributed state has the maximum distribution concentration in the end portion layer region on the substrate side of said light-receiving layer.
Claim 45
Dependent Claim
19 words
A light-receiving member according to claim 37, wherein said ununiform distributed state forms a moderate change in refractive index.
Claim 46
Dependent Claim
24 words
A light-receiving member according to claim 1, wherein the light-receiving layer has a barrier layer, a charge generation layer and a charge transport layer.
Claim 47
Dependent Claim
44 words
An electrophotographic image forming process comprising: (a) applying a charging treatment to the light receiving member of claim 1; (b) irradiating the light receiving member with a laser beam carrying information to form an electrostatic latent image; and (c) developing the electrostatic latent image.
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) | 1990-09-28 | 1991-03-30 | 1991-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-28 | 1995-03-30 | 1995-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-28 | 1999-03-30 | 1999-09-29 | $7700.00 | Window Closed / Lapsed |