Patent ID: 9632262
Date: 2017-04-25
CPC Classifications: G02B

Claim:
1. An optical module comprising a first optical block having a first lens and a second optical block having a second lens, wherein the first optical block is combined with the second optical block; the first optical block includes four ridge-like portions; the second optical block includes four rod-like spring portions disposed in a same extension direction, four protrusions peaking toward the first optical block, and four slopes disposed on a same plane and parallel to the extension direction; each of the four rod-like spring portions has, at a distal end portion thereof, a corresponding one of the four protrusions and a corresponding one of the four slopes which is formed on the corresponding one of the four protrusions; the four rod-like spring portions are positioned such that the four slopes are positioned in a vicinity of four corners of the second optical block; one of the four slopes and another of the four slopes, which constitute a first pair, are situated in a mirror-image symmetry; one of remaining two slopes and another of the remaining two slopes, which constitute a second pair, are situated in a mirror-image symmetry; one of the first optical block and the second optical block has a raised part, and another of the first optical block and the second optical block has a depressed part into which the raised part is fitted, and a guide slope which guides the raised part into the depressed part; the guide slope is parallel to a direction that is orthogonal to the extension direction and is orthogonal to a facing direction in which the first optical block and the second optical block face to each other; the first optical block and the second optical block are configured respectively such that a), in a course of combining the first optical block and the second optical block, the four ridge-like portions make contact with the four slopes before the raised part makes contact with the guide slope, and b), subsequent to contact of the four ridge-like portions with the four slopes, the raised part makes contact with the guide slope after curving first two of the four rod-like spring portions and curving second two of the four rod-like spring portions by pressing one of the first optical block and the second optical block to another of the first optical block and the second optical block, the first two of the four rod-like spring portions including said first pair and the second two of the four rod-like spring portions including said second pair; and the first lens is aligned optically with the second lens at least by going through the contact of the four ridge-like portions with the four slopes and contact of the raised part with the guide slope.