Title:
MICROLENS ARRAY, MICROELENSES AND THEIR MANUFACTURE, AND STAMPER FOR MANUFACTURING MICROLENSES
Document Type and Number:
Japanese Patent JP3289202
Kind Code:
B2
Abstract:
PURPOSE: To make the top surface of a lens body nearly equal in curvature between two directions wherein the lens diameter is different by forming the lens body in a specific shape on a substrate from above a curvature adjustment part so that the lens body crosses the curvature adjustment part different in height from the top surface of the substrate.
CONSTITUTION: A microlens 1 consists of the transparent substrate 2 and lens body 4 and the refractive index of the substrate 2 is equal to the refractive index of the lens 4. On the substrate 2, the curvature adjustment base 3 which is trapezoidally sectioned and has thickness dp is projected, the width Lb of the curvature adjustment base 3 is narrower than the major axis directional length Wy the length of the curvature adjustment base 3 is longer than at least the minor axis directional length Wx of the lens body 4. The top surface of the curvature adjustment base 3 consists of a top surface 3a which has width La and slanting surfaces 3b on both its sides. The lens body 4 is formed on the top surface of the substrate 2 from above the curvature adjustment base 3 while crossing the curvature adjustment base 3, and major axis direction of the lens body 4 crosses the length direction of the curvature adjustment base 3 almost at right angles.
Inventors:
Osamu Nishizaki
Shigeru Aoyama
Masayuki Shinohara
Shigeru Aoyama
Masayuki Shinohara
Application Number:
JP30972793A
Publication Date:
June 04, 2002
Filing Date:
November 15, 1993
Export Citation:
Assignee:
Omron Corporation
International Classes:
G02B3/00; (IPC1-7): G02B3/00
Domestic Patent References:
| JP6140611A |
Attorney, Agent or Firm:
Masafusa Nakano