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Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/193658
Kind Code:
A1
Abstract:
The lighting device (2) includes an excitation light source (1), a wavelength conversion element (5), and a microlens array (3). The excitation light source (1) is configured to emit excitation light (8). The wavelength conversion element (5) is tilted around a first tilt axis, which is perpendicular to the optical axis (6) of the excitation light (8), with respect to the optical axis (6). The microlens array (3) is configured to, on the basis of the tilting angle of the wavelength conversion element (5) with respect to the optical axis (6), correct a cross-sectional size of the excitation light (8) traveling toward the wavelength conversion element (5).

Inventors:
LI, Jing
WELNA, Karl Peter
BERRYMAN-BOUSQUET, Valerie
TAKAHASHI, Koji
Application Number:
JP2018/014321
Publication Date:
October 10, 2019
Filing Date:
April 03, 2018
Export Citation:
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Assignee:
SHARP KABUSHIKI KAISHA (1 Takumi-cho, Sakai-ku Sakai Cit, Osaka 22, 〒5908522, JP)
International Classes:
F21V9/00; F21K2/00; F21K9/64; F21Y115/30
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (Daiwa Minamimorimachi Building, 2-6 Tenjinbashi 2-chome Kita, Kita-ku, Osaka-sh, Osaka 41, 〒5300041, JP)
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