OPTICAL PROPAGATION DEVICE, AND OPTICAL DISPLAY DEVICE AND ILLUMINATION DEVICE USING OPTICAL PROPAGATION DEVICE

WIPO Patent Application WO/2017/204041

A1

Provided is an optical propagation device capable of collecting light emitted from a plurality of light sources without the need for a coupler, thereby achieving reduction in the production cost. The optical propagation device (1) at least comprises light sources (2), a MEMS optical switch (3), a switching control device (4), and optical waveguides (5). Each light source (2) has a fixed output with the emitted light having a wavelength range between 445 nm and 700 nm. The MEMS optical switch (3) is composed of n × m (n ≥ 2, m ≥ 1) optical switches. Each light source (2) is optically connected to respective input port (11) and each optical waveguide (5) is optically connected to respective output port (12). Each input port (11) is switched at fixed cycles by the switching control device (4) and optically connected to respective optical waveguide (5) at each cycle, thereby propagating the light emitted from the light source (2) to the optical waveguide (5).

YAMAUCHI KENYA (JP)
SATO MASAKAZU (JP)
ISHIKAWA MASANORI (JP)
KANBARA DAISUKE (JP)

PCT/JP2017/018420

November 30, 2017

May 16, 2017

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ADAMANT CO LTD (JP)

G02B6/35; F21V8/00; G02B26/08; H01S5/0239; F21Y115/10; F21Y115/30

US20030198429A1	2003-10-23
JP2013511749A	2013-04-04
JP2010514108A	2010-04-30
JP2005224530A	2005-08-25
JP2014050002A	2014-03-17
JP2015052626A	2015-03-19
JP2004146793A	2004-05-20

HOSOI Isamu et al. (JP)

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