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Patent Searching and Data


Title:
DIFFUSER DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/147827
Kind Code:
A1
Abstract:
Diffuser device comprising a first lens array (3) having a plurality of lenses (6) and a second lens array (5) having a plurality of lenses (7) through which light passes successively during operation of the diffuser device, the diffuser device comprises a first transparent substrate (10) having an entrance surface (2) and an exit surface (4) and a second transparent substrate (11) having an entrance surface (2) and an exit surface (4), wherein the first lens array (3) is disposed on the first substrate (10) and the second lens array (5) is disposed on the second substrate (11), or wherein the second lens array (5) is disposed on the first substrate (10) and the first lens array (3) is disposed on the second substrate (11), and wherein the first substrate (10) and the second substrate (11) are spaced apart from one another, in particular an air gap (12) being arranged between the first substrate (10) and the second substrate (11). A distance measuring device with such a diffuser device and a LIDAR device with such a diffuser device.

Inventors:
KRASNABERSKI ALIAKSEI (DE)
HAUSCHILD DIRK (DE)
Application Number:
PCT/CN2021/072548
Publication Date:
July 29, 2021
Filing Date:
January 18, 2021
Export Citation:
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Assignee:
FOCUSLIGHT TECH INC (CN)
International Classes:
G02B27/09; G02B3/00
Foreign References:
CN101305309A2008-11-12
CN108957924A2018-12-07
US20190187341A12019-06-20
CN102411208A2012-04-11
CN208060714U2018-11-06
US20160377970A12016-12-29
US4979801A1990-12-25
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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