摘要:
A tester according to the present invention can conduct a test on optical devices each having a different positional relation between a position of a contact face of an external contact terminal and a direction of light emitted from a semiconductor laser element.
摘要:
A cap 25 having a piece of glass 26 formed at a laser irradiating position and covering a laser irradiating direction and an upper face of a package 24, is mounted onto the package 24 having lateral faces of a frame body 30 formed in three directions other than the laser irradiating direction, so as to reduce the distance between a semiconductor element 22 and the piece of glass and to reduce a radius 32 of the piece of glass 26. The profile of the semiconductor device can be therefore lowered while maintaining the characteristics of a semiconductor laser. In addition, by mounting the semiconductor device, the profile of an optical pickup device can also be lowered.
摘要:
A tester according to the present invention can conduct a test on optical devices each having a different positional relation between a position of a contact face of an external contact terminal and a direction of light emitted from a semiconductor laser element.
摘要:
A cap 25 having a piece of glass 26 formed at a laser irradiating position and covering a laser irradiating direction and an upper face of a package 24, is mounted onto the package 24 having lateral faces of a frame body 30 formed in three directions other than the laser irradiating direction, so as to reduce the distance between a semiconductor element 22 and the piece of glass 26 and to reduce a radius 32 of the piece of glass 26. The profile of the semiconductor device can be therefore lowered while maintaining the characteristics of a semiconductor laser. In addition, by mounting the semiconductor device, the profile of an optical pickup device can also be lowered.
摘要:
The semiconductor laser unit includes: a metal plate having a center portion wider than the remaining portions; a flexible substrate having a first opening; a substrate mounted on the center portion; a semiconductor laser placed on the substrate; a frame having a second opening and fixing the flexible substrate in the state of being bent along from the top surface to both side faces of the metal plate; and an optical element covering the second opening. The flexible substrate is fixed so that the first opening extends over the top surface and both side faces of the center portion.
摘要:
A copper frame plate (2) has a central frame plate (2a) and a pair of side frame plates (2c) bent from both ends of the central frame plate. A flexible substrate (3) has a central substrate (3a) covering the central frame plate and bent substrates (3b) bent from the central substrate so as to cover the side frame plates. An optical element (4) is mounted on the central frame plate. A plurality of internal wiring terminals (9) connected to the optical element are disposed on the central substrate and arranged in the width direction (W) along which the pair of side frame plates are opposed to each other. A plurality of external wiring terminals (11) used for connection to external equipment are disposed on the bent substrates and arranged in the length direction (L) orthogonal to the width direction.
摘要:
A copper frame plate (2) has a central frame plate (2a) and a pair of side frame plates (2c) bent from both ends of the central frame plate. A flexible substrate (3) has a central substrate (3a) covering the central frame plate and bent substrates (3b) bent from the central substrate so as to cover the side frame plates. An optical element (4) is mounted on the central frame plate. A plurality of internal wiring terminals (9) connected to the optical element are disposed on the central substrate and arranged in the width direction (W) along which the pair of side frame plates are opposed to each other. A plurality of external wiring terminals (11) used for connection to external equipment are disposed on the bent substrates and arranged in the length direction (L) orthogonal to the width direction.
摘要:
The semiconductor laser unit includes: a metal plate having a center portion wider than the remaining portions; a flexible substrate having a first opening; a substrate mounted on the center portion; a semiconductor laser placed on the substrate; a frame having a second opening and fixing the flexible substrate in the state of being bent along from the top surface to both side faces of the metal plate; and an optical element covering the second opening. The flexible substrate is fixed so that the first opening extends over the top surface and both side faces of the center portion.
摘要:
The present invention provides a semiconductor laser unit which realizes efficient heat dissipation, reduction in size, high-density integration of optical elements, prevention of a light-receiving element from being polluted with dust, and simple structure for easy assembly. The semiconductor laser unit includes: (a) a metal plate having a first recessed portion in a central part of an upper surface of the metal plate; (b) a flexible printed circuit which has wiring patterns, and a first aperture positioned on the first recessed portion, and is bent at both ends and in contact with the first recessed portion and a pair of side surfaces of the metal plate; (c) a light-emitting/receiving unit which includes a light-emitting element and a light-receiving element, and is placed on the first recessed portion through the first aperture; (d) a frame having: side portions for fixing firmly, on the side surfaces of the metal plate, the flexible printed circuit which is in contact with the side surfaces; and a top portion which has a second aperture and is placed on a protruding portion of the metal plate so that the first recessed portion is covered with the top portion and the second aperture faces toward the first recessed portion; and (e) an optical element which covers the second aperture.
摘要:
An optical device includes a copper plate, light receiving elements mounted on the copper plate, a light emitting element mounted on the light receiving elements, a flexible substrate bent to cover portions of upper and side surfaces of the copper plate, and a positioning frame of metal for fixing the flexible substrate and the copper plate to each other. Since the positioning frame secures the flexible substrate and the copper plate against movement, a thin optical device can be attained without employing a resin-molded construction.