Patent ID: 9709761
Date: 2017-07-18
CPC Classifications: G02B,H01L,H01S

Claim:
1. An optical receptacle disposed between a plurality of light emitting elements or a plurality of light receiving elements arranged at a constant interval and a plurality of optical transmission members arranged at a constant interval and configured to optically connect the light emitting elements or the light receiving elements to end surfaces of the optical transmission members, respectively, the optical receptacle comprising: a plurality of first optical surfaces arranged correspondingly to the light emitting elements or the light receiving elements, the plurality of first optical surfaces each configured such that light emitted from a corresponding one of the light emitting elements is incident on the first optical surface, or each configured to emit light propagating in the first optical surface toward a corresponding one of the light receiving elements; a plurality of second optical surfaces arranged correspondingly to the optical transmission members, the plurality of second optical surfaces each configured to emit the light incident on the first optical surfaces toward an end surface of a corresponding one of the optical transmission members, or each configured such that light from a corresponding one of the optical transmission members is incident on the second optical surface; and a third optical surface configured to reflect the light incident on the first optical surface toward the second optical surface or configured to reflect the light incident on the second optical surface toward the first optical surface, wherein: a distance between a center of the first optical surface and a virtual plane positioned identically with a light-emitting surface of the light emitting element or with a light-receiving surface of the light receiving element and a distance between a center of the second optical surface and the virtual plane are longer toward a center from both ends of a row of the first optical surfaces and a row of the second optical surfaces, respectively, and a center-to-center distance of an adjacent two of the first optical surfaces in a direction of the row of the first optical surfaces and a center-to-center distance of an adjacent two of the second optical surfaces in a direction of the row of the second optical surfaces are shorter than a distance between optical axes of light emitted from an oppositely-disposed adjacent two of the light emitting elements and a center-to-center distance of an oppositely-disposed adjacent two of the light-receiving surfaces of the optical transmission members, or shorter than a distance between optical axes of light emitted from an oppositely-disposed adjacent two of the optical transmission members and a center-to-center distance of an oppositely-disposed adjacent two of the light-receiving surfaces of the light receiving elements.