EP0086410A1
Expired / Lapsed
EP
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Apparatus and method for exposing a substrate
Assignee: EIDP Inc
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Filing: 1983-02-04
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Granted: —
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Expires: 2003-02-04
Abstract
Abstract A photoimaging system for exposing a member having a photopolymerizable coating thereon to actinic radiation is characterized by a fresnel lens disposed intermediate a source of actinic radiation and a support frame for supporting the member. The fresnel lens is adapted to collimate radiation emitted from the source and direct that radiation in substantially parallel ray paths such that the radiation impinges onto the surface of the member carried on the support frame in a direction substantially perpendicularly thereto over the entire surface area of the member.
Inventors
- 👤 Marvin Waddington, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 00:38
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0082; G; G03; G03F; G03F7/00; G03F7/20; G03F7/2002
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
In an exposure apparatus for exposing a substrate having a photopolymerizable coating thereon, the apparatus being of the type having a support frame for supporting the member thereon and a source of actinic radiation disposed above the support frame, the improvement which comprises: a fresnel lens disposed intermediate the source of actinic radiation and the support frame, the lens being adapted to collimate radiation emitted from the source and direct the radiation toward the support frame such that radiation from the source impinges onto member in a direction substantially perpendicularly thereto over the entire surface area thereof.
Claim 2
Dependent Claim
97 words
In an exposure apparatus for exposing a substrate having a photopolymerizable coating thereon, the apparatus being of the type having a support frame for supporting the member thereon and a source of actinic radiation disposed above the support frame, the improvement which comprises: a fresnel lens disposed intermediate the source of actinic radiation and the support frame, the lens being adapted to collimate radiation emitted from the source and direct the radiation toward the support frame such that radiation from the source impinges onto member in a direction substantially perpendicularly thereto over the entire surface area thereof.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 wherein the area of the fresnel lens is greater'than the area of the frame.
Claim 4
Dependent Claim
100 words
Apparatus for exposing a member having a photopolymerizable coating thereon comprising: a support frame sized to receive the member in a supporting relationship with respect thereto; a source of actinic radiation disposed above the support frame; and a fresnel lens disposed intermediate the source of actinic radiation and the support frame, the fresnel lens being adapted to collimate radiation emitted from the source and to direct the radiation toward the support frame such that radiation from the source impinges upon a member carried on the frame substantially perpendicularly to the surface of the member over the entire surface area thereof.
Claim 5
Dependent Claim
100 words
Apparatus for exposing a member having a photopolymerizable coating thereon comprising: a support frame sized to receive the member in a supporting relationship with respect thereto; a source of actinic radiation disposed above the support frame; and a fresnel lens disposed intermediate the source of actinic radiation and the support frame, the fresnel lens being adapted to collimate radiation emitted from the source and to direct the radiation toward the support frame such that radiation from the source impinges upon a member carried on the frame substantially perpendicularly to the surface of the member over the entire surface area thereof.
Claim 6
Dependent Claim
21 words
Apparatus according to claim 3 wherein the area of the fresnel lens is greater than the area of the support frame.
Claim 7
Independent Claim
71 words
A method for exposing a substrate having a photopolymerizable coating thereon comprising the steps of: mounting the substrate in a location in the beam path of a source of actinic radiation; interposing a fresnel lens in the beam path such that radiation from the source is able to be collimated by the lens into a direction substantially perpendicular to the substrate; activating the source to illuminate the substrate through the lens.
Claim 8
Independent Claim
71 words
A method for exposing a substrate having a photopolymerizable coating thereon comprising the steps of: mounting the substrate in a location in the beam path of a source of actinic radiation; interposing a fresnel lens in the beam path such that radiation from the source is able to be collimated by the lens into a direction substantially perpendicular to the substrate; activating the source to illuminate the substrate through the lens.
References Cited (Backward Citations)
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