WHITE LIGHT SOURCE SYSTEM

Title:

WHITE LIGHT SOURCE SYSTEM

Document Type and Number:

WIPO Patent Application WO/2016/208683

Kind Code:

A1

Abstract:

A white light source system being an illumination light source for a variety of target objects, such as exhibits in an art gallery, that require high color-rendering properties similar to natural light and being capable of: taking into consideration regional and time differences and reproducing sunlight shone on to earth; and being capable of radiating white light having reduced ultraviolet or blue light-emission components that may have an adverse impact on paintings, etc. The white light source system uses at least four types of white light sources comprising a combination of ultraviolet and violet light-emitting LEDs and phosphors. As a result of adjusting the types of phosphor material used and the mixing proportions for the white light sources, the white light source system continuously reproduces daily changes in sunlight for a specified season and a specified region and reproduces a white light that takes safety issues into consideration by improving the device structure.

Inventors:

YAMAKAWA MASAHIKO (JP)
YAGI NORIAKI (JP)
KOBAYASHI KUMPEI (JP)

Application Number:

PCT/JP2016/068714

Publication Date:

December 29, 2016

Filing Date:

June 23, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)

International Classes:

H01L33/00; H05B44/00; F21S2/00; H01L33/50; H05B37/02; F21Y101/00

Domestic Patent References:

WO2013061942A1	2013-05-02
WO2013069435A1	2013-05-16
WO2011111334A1	2011-09-15
WO2012077448A1	2012-06-14

Foreign References:

JP2009123429A	2009-06-04
JP2013521617A	2013-06-10
JP2012113959A	2012-06-14
JP2012195420A	2012-10-11
JP2014136771A	2014-07-28

Other References: