Reflection preventive light-shielding screen and a process for producing the same
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsKunio Shimizu, Yuichi Kame, Yoshimasa Tsuji
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Abstract
A reflection preventive light-shielding screen comprising a transparent plate and a side surface-rough relief of a cured photopolymerized resin composition formed thereon and having a striped pattern or a lattice pattern. The present reflection preventive light-shielding screen can effectively shield extraneous light rays without scattering the light rays emitted from image-indicating devices. Therefore, the present reflection preventive light-shielding screen can be advantageously used for various extraneous light rays-shielding applications. Furthermore, the present reflection preventive light-shielding screen can be produced by an extremely simple process as compared with those of the prior art.
Claims18
A reflection preventive light-shielding screen comprising a transparent plate and a plurality of relief lines of a cured photopolymerized resin composition supported by said transparent plate on its surface, said plurality of relief lines being arranged at spaced intervals with side surfaces and having at least their respective side surfaces roughened, said cured photopolymerized resin composition containing a delustering agent.
A process for producing a reflection preventive light-shielding screen which comprises:
- (1) interposing a layer of a photopolymerizable resin composition containing a delustering agent between a transparent plate and an image-bearing transparency having transparent portions and opaque portions which constitute a negative image of a predetermined pattern comprising a plurality of lines arranged at spaced intervals with side surfaces,
- (2) exposing said layer to an actinic light through said transparency to form cured photopolymerized resin composition portions and unpolymerized resin composition portions in said layer,
- (3) removing said transparency, and
- (4) removing the unpolymerized resin portions of said layer by means of a developer, thereby forming a plurality of relief lines corresponding to said plurality of lines of the negative image and having at least their respective side surfaces roughened.
Dependencies are inferred from the claim text.