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Title:
MICROLENS ARRAY, VEHICLE LAMP USING MICROLENS ARRAY, AND METHOD FOR MANUFACTURING MICROLENS ARRAY
Document Type and Number:
WIPO Patent Application WO/2022/209927
Kind Code:
A1
Abstract:
A microlens array (4) is provided with a plurality of optical systems. Each of the optical systems has an incidence-side lens part (41) and an emission-side lens part (42) that form a pair. Hollow parts (43a to 43c) are provided between incidence surfaces (41a to 41c) of the incidence-side lens part (41) and emission surfaces (42a to 42c) of the emission-side lens part (42), respectively. The hollow parts (43a to 43c) each include a first surface (431) extending to a focus position f of the emission-side lens part (42), and a second surface (432) extending in a direction from the first surface (431) to the incidence surface (41a to 41c), and a cut line forming part is configured by a boundary part (433) between the first surface (431) and the second surface (432).

Inventors:
MOTOTSUJI AYAKA (JP)
ISHIDA HIROYUKI (JP)
Application Number:
PCT/JP2022/012101
Publication Date:
October 06, 2022
Filing Date:
March 16, 2022
Export Citation:
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Assignee:
KOITO MFG CO LTD (JP)
International Classes:
G02B3/00; G02B3/08; F21S41/143; F21S41/16; F21S41/265; F21S41/275; F21S41/43; F21V5/00; F21V5/04; F21V5/08; F21W102/155; F21Y115/10; F21Y115/30
Foreign References:
JP2020144180A2020-09-10
JP2015210441A2015-11-24
JPH0427976A1992-01-30
JPS5590924A1980-07-10
JP2020199636A2020-12-17
JP2008100481A2008-05-01
JP2018134780A2018-08-30
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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