Laser holder and optical pickup provided with same
View Patent ↗A laser holder holds a semiconductor laser that has a metal frame part in which a semiconductor laser chip is mounted on one surface, and a resin part provided so as to surround the semiconductor laser chip. The laser holder is provided with an insertion part into which the semiconductor laser is inserted. The insertion part is provided with an aperture part that allows the resin part of the semiconductor laser inserted into the insertion part to be pushed from the exterior, and a wall surface part against which a reverse surface of the one surface of the metal frame part is pressed in a case where the resin part is pushed from the exterior.
1. A laser holder for holding a semiconductor laser, the semiconductor laser having a frame part in which a semiconductor laser chip is mounted, and a surrounding part provided so as to surround the semiconductor laser chip, the laser holder comprising:
an insertion part into which the semiconductor laser is inserted;
wherein the insertion part is provided with
an insertion port through which the semiconductor laser is inserted,
an aperture part provided in a surface different from a surface in which the insertion port is provided, wherein through the aperture part the surrounding part of the semiconductor laser is exposed to air, and
an unnotched region is provided so as to divide the aperture part.
2. The laser holder of claim 1 ,
wherein the insertion part is formed by
a plate-shaped part in which the insertion port is provided, and
a projecting part provided so as to protrude from the plate-shaped part, with the aperture part formed in a side surface of the projecting part.
3. The laser holder of claim 2 , wherein the unnotched region is contiguous with the plate-shaped part.
4. The laser holder of claim 1 , wherein the frame part has a hook part that engages with part of the insertion part.
5. The laser holder of claim 1 , wherein a convex part is formed on a peripheral edge of the insertion port.
6. The laser holder of claim 5 , wherein the convex part includes an inclined surface.
7. The laser holder of claim 1 , wherein the insertion part is furthermore provided with a support part for supporting a distal end of the semiconductor laser inserted into the insertion part.
8. The laser holder of claim 1 , wherein a concave part to be filled with an adhesive is formed on a peripheral edge of the insertion port.
9. An optical pickup comprising the laser holder of claim 1 .
10. The optical pickup of claim 9 , comprising:
a base member on which the laser holder holding the semiconductor laser, and an optical member are mounted; and
a metal cover for covering the optical member mounted on the base member,
wherein the laser holder and the metal cover are secured in a state of contact.