Rohm Co., Ltd.

Hideharu Hamada

Hiromi Ogata

Masaya Imamura

Seiji Koshikawa

Manabu Yokoyama

In an LED head, a photosensitive drum is positioned with reference to an upper surface of a circuit board on which surface at least one light-emitting element is supported in order to accurately set the distance between the light-emitting element and a photosensitive drum. Further, clips and a spring are used to accurately set the distance between the light-emitting element and a lens and to simplify the process of production.

LED head

An LED head includes a circuit substrate on which a light emitting element and drive IC are mounted, a SELFOC lens for condensing the irradiating light from the light emitting element on the circuit substrate, and a head cover of aluminum for holding the SELFOC lens spaced a given distance away from the light emitting element and for radiating heat from the circuit substrate.

Growing community of inventors

Kyoto, Japan

Hideharu Hamada