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1. (US20020135883) Microlens array, manufacturing method thereof and optical instrument

Office : United States of America
Application Number: 10104984 Application Date: 22.03.2002
Publication Number: 20020135883 Publication Date: 26.09.2002
Grant Number: 6842289 Grant Date: 11.01.2005
Publication Kind : B2
IPC:
B29D 11/00
G02B 27/10
B29C 39/10
B29C 39/24
B29C 41/12
B29C 41/22
G02B 3/00
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
D
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11
Producing optical elements, e.g. lenses or prisms
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
10
Beam splitting or combining systems
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
39
Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
02
for making articles of definite length, i.e. discrete articles
10
incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
39
Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
22
Component parts, details or accessories; Auxiliary operations
24
Feeding the material into the mould
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
41
Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
02
for making articles of definite length, i.e. discrete articles
12
Spreading-out the material on a substrate
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
41
Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
02
for making articles of definite length, i.e. discrete articles
22
Making multilayered or multicoloured articles
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3
Simple or compound lenses
Applicants: Seiko Epson Corporation
Inventors: Nishikawa Takao
Takakuwa Atsushi
Tamura Mutsumi
Agents: Harness, Dickey & Pierce, P.L.C.
Priority Data: 2001085377 23.03.2001 JP
Title: (EN) Microlens array, manufacturing method thereof and optical instrument
Abstract: front page image
(EN)

A manufacturing method of a microlens array includes the step of forming second light transmitting layers 36 on a first light transmitting layer 26. The first light transmitting layer 26 has a plurality of recessed parts 28 and partitions 32 for delimiting the recessed parts 28, wherein at least a portion of the inner surface of each recessed part 28 is a lens surface 30. The second light transmitting layers 36 are formed in the respective recessed parts 28 in such a manner that the second light transmitting layers 36 avoid the partitions 32 of the first light transmitting layer 26. The second light transmitting layers 36 are formed in such a manner that the surfaces of the second light transmitting layers 36 form lens surfaces 38 for the respective recessed parts 28.


Also published as:
JP2002283361