An optical head is adapted to form an electrostatic latent image on an
image carrier. A transparent substrate has a first face adapted to oppose
the image carrier and a second face opposing the first face. An organic
EL photo emitter is disposed so as to oppose the second face of the
substrate. In the photo emitter, a light emitting layer is adapted to
emit light irradiating the image carrier to form the electrostatic latent
image. An electrode layer is laminated on the light emitting layer. A
reflection reducer eliminates stray light generated when the light
emitted from the light emitting layer is reflected by at least the
electrode layer.