EP0426441A2
Expired / Lapsed
EP
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An optical device having a microlens and a process for making macrolenses
Assignee: Sharp Corp
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Filing: 1990-10-30
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Granted: —
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Expires: 2010-10-30
Abstract
Abstract An optical device having a lens substrate and a microlens portion formed thereon, wherein the microlens has its lens portion formed on the part of the optical device that has substantially the same coefficient of expansion as that of the lens substrate.
Inventors
- 👤 Noriko Watanabe
- 👤 Hiroshi Hamada
- 👤 Fumiaki Funada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 06:50
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/0006; G02B3/0012; G02B3/0031; B; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29C43/00; B29C43/02; B29C43/021; B29C43/18; B29C70/00; B29C70/68; B29C70/78; B29D; B29D11/00; B29D11/00009; B29D11/00278; G02B1/00; G02B1/04; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/1221; G03; G03F; G03F7/00; G03F7/0005; G03F7/001; B29C35/0805; B29C2035/0827; B29L; B29L2011/00; B29L2011/0016
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
43 words
In an optical device having a lens substrate and a microlens portion formed thereon, wherein the microlens has its lens portion formed on the part of the optical device that has substantially the same coefficient of expansion as that of the lens substrate.
Claim 2
Dependent Claim
43 words
In an optical device having a lens substrate and a microlens portion formed thereon, wherein the microlens has its lens portion formed on the part of the optical device that has substantially the same coefficient of expansion as that of the lens substrate.
Claim 3
Dependent Claim
16 words
An optical device according to claim 1, wherein the lens portion is made of photosensitive resin.
Claim 4
Dependent Claim
36 words
An optical device according to claim 1 or 2, wherein the microlens is attached to the optical device with an adhesive layer whose index of refraction has a different value from that of the lens portion.
Claim 5
Dependent Claim
62 words
A process for producing microlens for use in combination with optical devices, the process comprising the steps of forming a photosensitive resin layer on the optical device, applying a light-permissive stamper to the photosensitive resin layer so as to shape the photosensitive layer into a lens portion, and curing the lens portion under the irradiation of ultra violet rays through the stamper.
Claim 6
Dependent Claim
62 words
A process for producing microlens for use in combination with optical devices, the process comprising the steps of forming a photosensitive resin layer on the optical device, applying a light-permissive stamper to the photosensitive resin layer so as to shape the photosensitive layer into a lens portion, and curing the lens portion under the irradiation of ultra violet rays through the stamper.
Claim 7
Dependent Claim
93 words
An optical apparatus (10, 11, 20, 11) comprising a refractive index distribution microlens array (10, 20) having a plurality of microlenses for converging incident light to a plurality of regions of an optical device (11) to which the microlens array is attached, characterised in that the microlens array is provided in a microlens portion (4b) attached on its side remote from the optical device to a lens substrate (5) having substantially the same coefficient of expansion as that of a portion (9a) of the optical device to which the microlens portion is attached.
Claim 8
Dependent Claim
93 words
An optical apparatus (10, 11, 20, 11) comprising a refractive index distribution microlens array (10, 20) having a plurality of microlenses for converging incident light to a plurality of regions of an optical device (11) to which the microlens array is attached, characterised in that the microlens array is provided in a microlens portion (4b) attached on its side remote from the optical device to a lens substrate (5) having substantially the same coefficient of expansion as that of a portion (9a) of the optical device to which the microlens portion is attached.
Claim 9
Dependent Claim
60 words
An optical apparatus comprising a refractive index distribution microlens array having a plurality of microlenses defining one surface of a microlens portion (4b) characterised in that said one surface is attached to an optical layer (9a) of an optical device (11) by an adhesive layer (7) having a refractive index different in value to that of the microlens portion (4b).
Claim 10
Dependent Claim
60 words
An optical apparatus comprising a refractive index distribution microlens array having a plurality of microlenses defining one surface of a microlens portion (4b) characterised in that said one surface is attached to an optical layer (9a) of an optical device (11) by an adhesive layer (7) having a refractive index different in value to that of the microlens portion (4b).
Claim 11
Dependent Claim
59 words
An optical device according to claim 5 wherein the microlens array defines one surface of the microlens portion (4b) and wherein said one surface is attached to the optical layer (9a) by an adhesive layer (7) having a refractive index different in value layer (7) having a refractive index different in value to that of the microlens portion (4b).
Claim 12
Dependent Claim
39 words
An optical device according to claim 6 or 7 wherein the microlens portion (4b) comprises an array of convex lenses and the refractive index of the adhesive layer (7) is smaller than the refractive index of the microlens portion.
Claim 13
Dependent Claim
39 words
An optical device according to claim 6 or 7 wherein the microlens portion comprises an array of concave lenses and the refractive index of the adhesive layer (7) is greater than the refractive index of the microlens portion (4b).
Claim 14
Dependent Claim
20 words
A stamper (26) for shaping a photosensitive layer to provide a microlens array characterised in that the stamper is light-permissive.
Claim 15
Dependent Claim
20 words
A stamper (26) for shaping a photosensitive layer to provide a microlens array characterised in that the stamper is light-permissive.
Claim 16
Independent Claim
70 words
A method of forming an optical device having a lens substrate (5) and a microlens portion (4b) comprising the steps: stamping a photosensitive layer (4a) to provide a surface defining a microlens array; curing the photosensitive layer; and adhering said surface of the microlens array to a portion (9a) of an optical device (11) using an adhesive layer (7) having a refractive index different to that of the photosensitive layer.
Claim 17
Independent Claim
70 words
A method of forming an optical device having a lens substrate (5) and a microlens portion (4b) comprising the steps: stamping a photosensitive layer (4a) to provide a surface defining a microlens array; curing the photosensitive layer; and adhering said surface of the microlens array to a portion (9a) of an optical device (11) using an adhesive layer (7) having a refractive index different to that of the photosensitive layer.
Claim 18
Dependent Claim
37 words
A method according to claim 11 wherein the photosensitive layer (4a) is disposed on a lens substrate (5) having a coefficient of expansion substantially the same as that of the portion (9a) of the optical device (11).
Claim 19
Dependent Claim
57 words
A process for producing microlens for use in combination with optical devices, the process comprising the steps of forming a photosensitive resin layer on the optical device, applying a light-permissive stamper to the photosensitive resin layer so as to shape the photosensitive layer into a lens portion, and curing the lens portion under irradiation through the stamper.
Claim 20
Dependent Claim
57 words
A process for producing microlens for use in combination with optical devices, the process comprising the steps of forming a photosensitive resin layer on the optical device, applying a light-permissive stamper to the photosensitive resin layer so as to shape the photosensitive layer into a lens portion, and curing the lens portion under irradiation through the stamper.
References Cited (Backward Citations)
No citation records indexed.
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