Abstract: A light emitting device includes a lens member having a light inputting surface and a light outputting surface for converging light incident on the light inputting surface and outputting the converged light from the light outputting surface, and an organic EL device provided on the light inputting surface of the lens member.

Abstract: A light emitting device includes a lens member having a light inputting surface and a light outputting surface for converging light incident on the light inputting surface and outputting the converged light from the light outputting surface, and an organic EL device provided on the light inputting surface of the lens member.

Abstract: An optical pickup device includes a light source for emitting light beam onto a recording medium. A lens is provided in an optical path between the light source and the recording medium. The lens converges the light beam to create a focusing spot on the recording medium. A tracking error detector receives a light beam reflected from the recording detector also receives a reflected light beam to detect a focusing error. A controller receives an output from the tracking error detector and the focusing error detector to produce a tracking error correction signal and a focusing error correction signal. A deflection angle adjuster is provided in the optical path and is responsive to the tracking error correction signal. The angle adjuster adjusts a deflection angle of the light beam. A refractive index adjuster is provided in the optical path and is responsive to the focusing error correction signal. The refractive index adjuster adjusts a refractive index of the light beam.