Semiconductor laser device
First Claim
1. A semiconductor laser device comprising:
- a package having a front surface, a rear surface and an outer peripheral surface;
a semiconductor laser element and a light receiving element provided on the front surface;
a plurality of leads arranged in spaced relation on the front surface as extending outward from the package; and
an optical element supported above the front surface with its optical axis perpendicular to the front surface for guiding a laser beam emitted from the semiconductor laser element toward an object and guiding light reflected on the object to the light receiving element;
wherein the outer peripheral surface is configured so as to be fitted in a cylindrical hole having an axis parallel to the optical axis of the optical element, and has a recess extending from the front surface to the rear surface, and the leads are bent as extending from the front surface and passing through the recess with distal portions thereof extending along the optical axis of the optical element and with proximal ends thereof electrically connected to the semiconductor laser element and the light receiving element.
1 Assignment
0 Petitions
Accused Products
Abstract
A semiconductor laser device includes a package having a front surface, a rear surface and an outer peripheral surface; a semiconductor laser element and a light receiving element provided on the front surface; a plurality of leads arranged in spaced relation on the front surface as extending outward from the package; and an optical element supported above the front surface with its optical axis perpendicular to the front surface for guiding a laser beam emitted from the semiconductor laser element toward an object and guiding light reflected on the object to the light receiving element; wherein the outer peripheral surface is configured so as to be fitted in a cylindrical hole having an axis parallel to the optical axis of the optical element, and has a recess extending from the front surface to the rear surface, and the leads are bent as extending from the front surface and passing through the recess with distal portions thereof extending along the optical axis of the optical element and with proximal ends thereof electrically connected to the semiconductor laser element and the light receiving element.
6 Citations
13 Claims
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1. A semiconductor laser device comprising:
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a package having a front surface, a rear surface and an outer peripheral surface;
a semiconductor laser element and a light receiving element provided on the front surface;
a plurality of leads arranged in spaced relation on the front surface as extending outward from the package; and
an optical element supported above the front surface with its optical axis perpendicular to the front surface for guiding a laser beam emitted from the semiconductor laser element toward an object and guiding light reflected on the object to the light receiving element;
wherein the outer peripheral surface is configured so as to be fitted in a cylindrical hole having an axis parallel to the optical axis of the optical element, and has a recess extending from the front surface to the rear surface, and the leads are bent as extending from the front surface and passing through the recess with distal portions thereof extending along the optical axis of the optical element and with proximal ends thereof electrically connected to the semiconductor laser element and the light receiving element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A semiconductor laser device comprising:
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a substrate;
a plurality of substrate support blocks projecting outward from the substrate in spaced relation parallel to the substrate, the substrate support blocks cooperatively defining an outer peripheral surface which is configured so as to be fitted in a cylindrical hole; and
a semiconductor laser element, a light receiving element, an optical element and a plurality of leads provided on a front surface of the substrate, the optical element being adapted to guide a laser beam from the semiconductor laser element toward an object and guide a light beam reflected on the object to the light receiving element;
wherein the leads have proximal ends electrically connected to the semiconductor laser element and the light receiving element, and distal portions extending from an end face of the substrate to be bent and further extending through a gap defined between adjacent two of the substrate support blocks toward a rear surface of the substrate.
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13. A semiconductor laser device comprising:
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a package having a front surface and a rear surface;
a plurality of interconnection leads arranged in spaced relation on the front surface of the package as extending outward from the package;
a semiconductor laser element, a reflective mirror, a light receiving element and an optical element provided on the front surface of the package, the optical element being adapted to guide a laser beam emitted from the semiconductor laser element toward a medium carrying external information recorded thereon and further guide light reflected on the medium to the light receiving element;
wherein the leads are electrically connected to the semiconductor laser element and the light receiving element, the leads each including an inner lead portion present inside the package and an outer lead portion present outside the package, the outer lead portions of the leads being arranged at greater intervals than the inner lead portions of the leads, and bent toward the rear surface of the package.
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Specification