Title:
LIGHT SOURCE UNIT AND VEHICULAR LAMP
Document Type and Number:
Japanese Patent JP2018113234
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce difference between a hue of light emitted from a first light-emitting element and a hue of light emitted from a second light-emitting element, to improve visibility.SOLUTION: A light source unit includes a first light-emitting element 28 and a second light-emitting element 29, which are mounted on a substrate 27 in a state of being sealed in a fluorescent body 32, wherein light emission intensity of the first light-emitting element is made smaller than light emission intensity of the second light-emitting element, and a light-emitting area of the first light-emitting element is made smaller than a light-emitting area of the second light-emitting element. Consequently, since the light-emitting area of the first light-emitting element having light emission intensity smaller than the second light-emitting element is made smaller than the light-emitting area of the second light-emitting element, difference between a hue of light emitted from the first light-emitting element and a hue of light emitted from the second light-emitting element can be reduced to improve visibility.SELECTED DRAWING: Figure 3
More Like This:
Inventors:
OZAWA ATSUSHI
SERITA TAKUYA
SERITA TAKUYA
Application Number:
JP2017004504A
Publication Date:
July 19, 2018
Filing Date:
January 13, 2017
Export Citation:
Assignee:
KOITO MFG CO LTD
International Classes:
F21S41/00; F21S43/00; F21S45/00; F21V19/00; F21V29/503; F21V29/76
Domestic Patent References:
JP2009224191A | 2009-10-01 | |||
JP2013137959A | 2013-07-11 | |||
JP2012069834A | 2012-04-05 |
Attorney, Agent or Firm:
Masanobu Iwata
Hiroto Nakagawa
Nobuo Suzuki
Atsuo Waki
Hiroto Nakagawa
Nobuo Suzuki
Atsuo Waki
Previous Patent: Optical object
Next Patent: A manufacturing method of an anode for rechargeable lithium-ion batteries, and a rechargeable lithiu...
Next Patent: A manufacturing method of an anode for rechargeable lithium-ion batteries, and a rechargeable lithiu...