Patent ID: 7245834

Claim:
An optical semiconductor package, comprising: an integrated-circuit chip support which has an optical sensor on a front face; an optical device placed in front of and attached to the front face of the chip support for the optical sensor; and a housing; the optical device comprising a stack which comprises: a transparent block which has a rear face attached to the front face of the chip support and a front face parallel to its rear face; a converging lens which has a rear face and a convex frontal surface; and a diaphragm interposed and fixed between the block and the lens, a first face of the diaphragm being attached to the front face of the transparent block and a second face of the diaphragm being attached to the rear face of the converging lens; and the housing being made of an opaque material and comprising a peripheral wall, which encloses the stack, and an annular front part bearing on a periphery of the frontal surface of the lens, so as to define a frontal opening located in front of a central part of the lens.