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Patent Searching and Data


Title:
LENS ARRAY, LED LIGHTING UNIT, EXPOSURE DEVICE, AND EXPOSURE METHOD
Document Type and Number:
WIPO Patent Application WO/2021/149743
Kind Code:
A1
Abstract:
A lens array (50) is provided with a lens plate (51) and a plurality of lenses (52). The lens plate (51) has lens regions (53) to which the lenses (52) are affixed, and non-lens regions (54) to which the lenses (52) are not affixed. A base plate to which LEDs are affixed has LED regions to which the LEDs are affixed, and non-LED regions to which the LEDs are not affixed. The lens plate (51) and the base plate (24) are fastened together with the lens regions (53) overlapping the LED regions and with the non-lens regions (54) overlapping the non-LED regions. As a result, it is possible to stably assemble the lens array to the base plate for the LEDs, and to achieve excellent illuminance distribution and size reduction.

Inventors:
MATSUZAKA MASAAKI (JP)
YAMAGUCHI YOICHI (JP)
MATSUSHITA TOMOHISA (JP)
Application Number:
PCT/JP2021/001924
Publication Date:
July 29, 2021
Filing Date:
January 20, 2021
Export Citation:
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Assignee:
V TECH CO LTD (JP)
International Classes:
F21S2/00; G02B3/00; F21V5/00; F21V5/04; F21V17/00; F21V29/503; F21V29/56; G03F7/20; H01L33/00; H01L33/64; F21Y105/12; F21Y115/10
Foreign References:
JP2013008555A2013-01-10
JP2016177216A2016-10-06
JP2005228606A2005-08-25
JP2012042670A2012-03-01
US20160215961A12016-07-28
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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