Abstract: An inhibitor switch is provided with a movable base 1 having permanent magnets 4, which is adapted to be rotatable in accordance with the transmission operating position of an automatic transmission device. The inhibitor switch also has magnetic sensors 9 for detecting the magnetic flux from the permanent magnets 4, a pole base 3, and a cover body 2 for rotatably supporting the movable base 1 in cooperation with the pole base 3. The pole base 3 has an approximate arc shape with a radius of curvature centered about the center of a shaft hole 3a. A base surface 3d is provided for forming a space for receiving a substrate 6 connected to the connecting sections 7a, on which the magnetic sensors 9 and electronic elements 10 are installed. The connecting sections 7a are used to electrically connect a conductive body 7 to the substrate 6. The shaft hole 3a is coupled with a cylindrical shaft section 1a of the movable base 1 at an end of the base surface 3d.

Abstract: An inhibiter switch is provided with a movable body 1 rotatable in accordance with an operating position of an automatic transmission device. The movable body 1 is supported rotatably by a cover 2 and a pole base 3 having magnetic sensors 9 disposed therein. A conductive body having a terminal 7b projected into a connector section 3c at one side thereof and a body section 7a electrically connected to the magnetic sensors 9 and exposed from a bottom surface 3d, is insert molded into the pole base 3. The pole base 3 forms an offset surface 3e exposing the body section 7a as a connection location with the conductive body 7 from the bottom surface 3d. The pole base 3 has notches 3f, 3g, 3h in which the magnetic sensors 9 are disposed, and a notch 3i in which a substrate 6 is disposed. The notches 3f, 3g, 3h, 3i are formed at the periphery of the offset surface 3e. The pole base 3 also forms a guide 3j for disposing the magnetic sensors 9 within the offset surface 3e.

Abstract: An inhibitor switch is constructed such that a movable base 1 adapted to be rotatable in accordance with the transmission operating position of an automatic transmission device is supported rotatably by a cover body 2 and a pole base 3 having magnetic sensors 9. The movable base 1 is integrally formed with a yoke 5 through an injection molding method. The yoke 5 has folded sections 5c exposed to the upper surface of the movable base 1 and bottom pieces 5b for receiving the permanent magnets 4. Moreover, the yoke 5 is composed of a plurality of bottom pieces 5b connected with each other, and the folded sections 5c formed at each end of the bottom pieces 5c. With this construction, an inhibitor switch is provided with a low manufacturing cost.

Abstract: An optical module has a module case in which an optical device and a circuit unit electrically connected to the optical device are mounted. An optical connector of an optical fiber is detachably connected to the module case so as to be in contact with the optical device. The optical module includes a supporting structure supporting the optical device in a state in which the optical device is movable along a line, a force applying mechanism applying a force to the optical device in a direction parallel to the line along which the optical device is movable, and a locking mechanism releasably locking the optical connector pressing the optical device in a direction parallel to the line so as to be in close contact with the optical device, light passing through a boundary between the optical connector and the optical device.

Abstract: An optical module has a module case in which an optical device and a circuit unit electrically connected to the optical device are mounted. An optical connector of an optical fiber is detachably connected to the module case so as to be in contact with the optical device. The optical module includes a supporting structure supporting the optical device in a state in which the optical device is movable along a line, a force applying mechanism applying a force to the optical device in a direction parallel to the line along which the optical device is movable, and a locking mechanism releasably locking the optical connector pressing the optical device in a direction parallel to the line so as to be in close contact with the optical device, light passing through a boundary between the optical connector and the optical device.

Abstract: An optical isolator has a low-profile construction. Two rod-like permanent magnets are on two sides of a Faraday element in parallel to an optical axis. The two permanent magnets are sandwiched and fixed between two ferromagnetic frames each having a light path hole therein. The ferromagnetic frames are each provided with a protrusion for guiding the magnetic flux generated by the permanent magnets to the Faraday element.

Abstract: A semiconductor laser module includes a semiconductor laser assembly formed by containing a semiconductor laser in a package, a lens assembly fixed by welding to the package of the semiconductor laser assembly, and a fiber assembly fixed by welding to the lens assembly. The semiconductor laser assembly includes a base fixed to the package and a carrier fixed to the base. The semiconductor laser is mounted on the carrier. A lens holder of the lens assembly is spot-welded to the package at a plurality of positions set below the upper surface of the base.

Abstract: A light emitting diode chip includes a substrate carrying thereon a number of light emitting diodes aligned in a row to form an array for producing a number of optical beams parallel to each other in a first direction, and monitoring element provided monolithically on the substrate for detecting the power of the optical beams produced by the light emitting diodes, wherein the monitoring element includes: a reference light emitting diode having a structure identical to the light emitting diodes in the array for producing an optical beam in a second direction perpendicular to the first direction; and a photodiode having a structure identical to the light emitting diodes in the array and separated from the reference light emitting diode by an isolation groove for detecting the optical beam produced by the reference light emitting diode.

Abstract: A thermistor assembly is formed by fixedly attaching a thermistor on to a base formed of a material having good heat conductivity and the thermistor assembly and an LD chip are fixedly attached on to a carrier arranged in contact with an electronic cooling element using brazing materials with different melting points, so that, when, for example, the thermistor is found faulty, the thermistor can be easily exchanged with a good one.

Abstract: A laser diode assembly capable of controlling a temperature of a laser diode chip with a high accuracy. A Peltier device is mounted on a base member, and a carrier is mounted on the Peltier device. On the carrier are mounted the laser diode chip, a thermistor, and a relay block. A terminal for connecting the thermistor to an external circuit is provided so as to extend through the base member. The thermistor and the relay block are connected together by wire bonding, and the relay block and the terminal are also connected together by wire bonding. The laser diode assembly further includes a control circuit for controlling a driving current for the Peltier device contacting with the carrier so as to maintain a resistance of the thermistor fixed on the carrier at a constant value.

Abstract: A rod lens fixing method which can prevent the generation of cracks in a rod lens due to annealing to be carried out after welding a lens assembly. The rod lens fixing method includes the steps of providing a flanged split sleeve having an axial slit extending continuously from one end of the flanged split sleeve to the other end thereof, the axial slit being wide enough at least a flange of the flanged split sleeve to permit laser welding; press-fitting the rod lens into the flanged split sleeve; and applying a solder into the axial slit to solder the rod lens to the flange split sleeve. This method further includes the steps of inserting the flanged split sleeve into a bore formed at one end portion of a sleeve, the bore having a diameter larger than an outer diameter of the flanged split sleeve and smaller than an outer diameter of the flange; and laser-welding the flange to one end surface of the sleeve at a plurality of points on an outer circumference of the flange and in the axial slit.