Light transmissive optical element module and electronic instrument

A light transmissive optical element module comprising:

• an optical device having a light transmissive optical element that causes light incident thereon to exit and a heat transfer surface via which heat of the light transmissive optical element is transferred;
• a heat diffuser that includes a contact section in contact with the heat transfer surface and an extension extending from the contact section and diffuses the received heat;
• a thermoelectric conversion device that has a first surface in contact with the extension and a second surface disposed at a side opposite from the first surface, absorbs via the first surface the heat transferred from the extension, and dissipates the absorbed heat via the second surface;
• and
• a cooler in contact with the second surface;
• wherein:
• the thermoelectric conversion device is a Peltier device;
• the light transmissive optical element is a liquid crystal panel that includes a liquid crystal layer, which modulates light incident thereon in a first direction, and causes the modulated light to exit in the first direction, and
• the heat diffuser transfers the heat supplied from the Peltier device to the liquid crystal panel via the contact section.