Toyoda Gosei Co., Ltd.

Kazue Tagata

Yoshinobu Suehiro

Koji Tasumi

A light source unit includes a light source portion including a mounting board, a light emitting element mounted on the mounting board, a rectangular solid sealing material for sealing the light emitting element, the sealing material including a first distance between the light emitting element and a top face thereof and a second distance between the light emitting element and a side face thereof, the first distance being greater than the second distance and a phosphor dispersed in the sealing material for radiating a wavelength conversion light by being excited by light emitted from the light emitting element, wherein a first light emitted through the top face of the sealing material is different in emission color from a second light emitted through the side face of the sealing material. The light source unit further includes an optical connection member including a reflection surface for reflecting light emitted from the side face of the sealing material, and a light guiding member including an end face through which light emitted through the top face of the sealing material and light reflected by the reflection surface of the optical connection member are inputted into the light guiding member.

Light source unit

A light source unit includes a light source portion including an LED element, a heat radiation portion that is connected to the light source portion, a case including an outside wall that is disposed apart from the light source portion and the heat radiation portion, and a spring member that is disposed between the outside wall of the case and the heat radiation portion.

A light source unit includes a linear light source portion including a plurality of glass-sealed LEDs, a heat radiation portion including a heat radiation plate connected to the linear light source portion, and a case including an outside wall that is disposed apart from the linear light source portion and the heat radiation portion, a support portion connecting the outside wall to heat radiation portion, and a vent hole formed in the outside wall.

Growing community of inventors

Aichi-ken, Japan

Kazue Tagata