Seiko Epson Corporation

Kazuya Usuda

Kaname Nagatani

Masato Kadotani

Shin Aruga

A light source device has a light source unit including a base member and a plurality of light emitting devices held in the base member, a heat receiving plate including an opening portion, to which the base member is fixed to cover the opening portion, and a heat diffusion member in contact with the base member via the opening portion. Heat from the light source unit is transmitted to the heat receiving plate and the heat diffusion member.

Light source device and projector

A wavelength conversion device, an illumination device, and a projector that can efficiently cool a phosphor. A wavelength conversion device includes a substrate including a phosphor layer in which a phosphor is included, a rotating device configured to rotate the substrate, a circulating device that circulates a cooling gas to the substrate, and a housing configured to house the substrate and the circulating device. The housing includes a partition wall configured to separate a first space in which the cooling gas is circulated to the substrate by the circulating device and a second space in which the cooling gas radially delivered from the substrate according to the rotation of the substrate circulates.

Growing community of inventors

Matsumoto, Japan

Kazuya Usuda