Invention Grant
- Patent Title: Microlens array sheet and method of producing the same
- Patent Title (中): 微透镜阵列片及其制造方法
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Application No.: US12378962Application Date: 2009-02-23
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Publication No.: US07864450B2Publication Date: 2011-01-04
- Inventor: Masaru Segawa , Masahiko Sugiyama , Yoichiro Nakatani
- Applicant: Masaru Segawa , Masahiko Sugiyama , Yoichiro Nakatani
- Applicant Address: JP Kanagawa-Ken
- Assignee: Victor Company of Japan, Ltd.
- Current Assignee: Victor Company of Japan, Ltd.
- Current Assignee Address: JP Kanagawa-Ken
- Agency: Renner, Kenner, Greive, Bobak, Taylor & Weber
- Priority: JP2004-376014 20041227; JP2005-155135 20050527
- Main IPC: G02B9/08
- IPC: G02B9/08

Abstract:
A microlens array sheet includes a light-shielding base having a first surface and a second surface opposite to the first surface and a microlens array attached to the first surface of the light-shielding base, the array having a plurality of microlens. The light-shielding base has a plurality of apertures that correspond to the microlenses. Each aperture has a conical trapezoid-like shape in which a size of each aperture on the first surface side is larger than another size of each aperture on the second surface side. Instead of the light-shielding base, the microlens array sheet may include a transparent base having a first surface and a second surface opposite to the first surface and a light-shielding layer, having a third surface and a fourth surface opposite to the third surface, provided on the second surface of the transparent base. The microlens array is attached to the first surface of the transparent base. The light-shielding layer has a plurality of apertures that correspond to the microlenses. Each aperture has a conical trapezoid-like shape in which a size of each aperture on the third surface side is larger than another size of each aperture on the fourth surface side.
Public/Granted literature
- US20090159195A1 Microlens array sheet and method of producing the same Public/Granted day:2009-06-25
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