摘要:
An endoscope provided with a lighting apparatus (8). In this lighting apparatus (8), a tapered fiber (4) is applied between a lamp (2) and a base end face of a light guide (3). This taper fiber (4) is in a tapered configuration which gradually diminishes in diameter toward an end side. The lamp (2) is a high luminance lamp of a low outgoing angle. The lamp (2), a battery (1), and the tapered fiber (4) of the lighting apparatus (8) are arranged unitedly on a grip portion (9) of the endoscope.
摘要:
A bending mechanism comprising a tubular body or linear body having a bending part, a movable part which can move in the lengthwise direction of said tubular body or linear body, two actuators formed to antagonize via said movable part, and a pull wire which extends in the lengthwise direction along the bending part, one end of the wire being fixed to one end side of the bending part and the other end of the wire being fixed to the movable part set at the other end side of the bending part, wherein at least one of the two actuators is a shape memory element, and a stereoscope. The bending mechanism of the present invention is free of displacement of movable part when bending action is not needed, since two actuators are used which antagonize each other via movable part, whereby buckling of the bending part can be prevented. The simple structure of activator unit of the present invention facilitates reduction of the size of the structure. The stereoscope of the present invention is free of buckling of image guide and the like, and angle of convergence can be adjusted easily and a desired three-dimensional view can be obtained easily.
摘要:
A laser diode comprising an electro-conductive substrate (1), an electrode (4) formed on one side thereof, a stripe light emitting part (2) having a double heterostructure formed on the other side of the substrate, and the other electrode (5) formed on said light emitting part (21), wherein the light emitting part (2) comprises a first cladding layer (2a), an active layer (2c) composed of a compound semiconductor of the formula: In x Ga y Al 1-x-y N (0≦x≦1, 0≦y≦1) and a second cladding layer (2b) in that order from the substrate side, and the stripe light emitting part (2) is buried with a burying material (3a,3b) having a high electric resistance and preferably also having an effective refractive index which is 5×10 -1 - 5×10 -4 lower than the effective refractive index of the active layer (2c) at a lasing wavelength. According to the present invention, an InGaAlN laser diode having an improved injection density of the current into the active layer (2c), which is capable of suppressing the occurrence of higher order mode and which has superior heat releasability can be provided. The laser diode of the present invention is advantageous in that it facilitates production and reduces the production costs.
摘要翻译:一种激光二极管,包括导电基板(1),在其一侧形成的电极(4),在基板的另一侧上形成有双异质结的条形发光部分(2)和另一个电极 5)形成在所述发光部分(21)上,其中所述发光部分(2)包括第一包层(2a),由下式化学半导体构成的有源层(2c):In x Ga y Al 1-x-y N( 0 = x = 1,0 i>和第二包层(2b),并且条形发光部分(2)被埋入 材料(3a,3b)具有高的电阻,并且优选地还具有比激发波长的有源层(2c)的有效折射率低5×10 -5 -5 -4 -4的有效折射率。 根据本发明,可以提供能够抑制高阶模式的发生并且具有优异的散热性的,具有改善到有源层(2c)的电流的注入密度的InGaAlN激光二极管。 本发明的激光二极管的优点在于其有利于生产并降低生产成本。
摘要:
The invention provides a bolt-equipped connector in which the bolt will be mounted when the connector is mated with a counter connector. Engaging protrusions (25a, 26a) of a bolt holder (20) are engaged with engaging portions (15b, 16b), whereby the bolt holder (20) is fitted to a holder mounting hole (13) of a housing (11) of a male connector (10). In this state, the bolt (40) is pushed into the bolt holder (20) at the time of mating with a female connector. Engaging pieces (44b, 44c) of a stop ring (44) additionally provided to the bolt (40) are engaged with a step portion (22b) of the bolt holder (20), so that the bolt (40) is ratatably held to the housing (11) via the bolt holder (20). Then, a male screw portion (41) of the bolt (40) is screwed in a screw hole of the female connector, whereby the connectors are mated with each other.
摘要:
A conductor foil (2) laminated on a carrier tape (1) via a sticking layer is stamped out so as to form cut lines on boundaries among a wiring pattern part, a first conductor remainder part (22) forming an outer region enclosing the wiring pattern part, and a second conductor remainder part (23) other than the wiring pattern part and the first conductor remainder part (22). Next, out of the conductor foil (2), only the first conductor remainder part (22) is peeled from the carrier tape (1), and then a first insulating tape (3) with an adhesive layer which is in a solid state at an ordinary temperature is laminated on the carrier tape (1). Only a region of the adhesive layer with which the wiring pattern part is covered is heated with compression by a lower hot plate (53) so that the wiring pattern part is adhered to the insulating tape (3). Then, the carrier tape (1) is peeled from the insulating tape (3) so as to be separated therefrom at a steep angle and the second conductor remainder part (23) at a non-adhesion state is removed. Finally, the second insulating tape (5) is laminated on the first insulating tape (3) and the resultant thus obtained is punched into a desired figure. In the step of adhering the wiring pattern part in a transferring step, the laminated tape (4) is disposed in a chamber and is heated with compression under a reduced pressure, thereby preventing air bubbles from entering an interface between the wiring pattern part and the first insulating tape (3).
摘要:
A receptacle (6) of an optical fiber collimator has an end surface (6b) supported along a plane extending at right angles to the axis of the receptacle and a contact surface (6,6') at the other end. The contact surface also extends at right angles to the axis of the receptacle. A receptacle holder (8) has a recess (8g) within which the receptacle (6) is received. Adjusting screws (24) are devised to adjust radial position of the receptacle. A lens holder (12) is attached to the other end of the receptacle holder. A slide (46) plate has a sliding surface in surface contact with the contact surface (6b') of the receptacle. The slide plate is urged toward the one end of the receptacle so as to bring the sliding surface into contact with the contact surface of the receptacle. An optical fiber (2) is inserted into the receptacle through a ferrule (4). If the optical fiber is twisted, the slide member permits ready rotation of the receptacle in a torsional direction so as to prevent the optical fiber from being subjected to torsional stress. Also, opposite ends of the receptacle are gripped in surface contact and supported in a plane extending at right angles to the axis of the receptacle holder. This arrangement prevents inclination of the receptacle and thus, optical misalignment of the optical fiber and the lens if the weight of the optical fiber is applied.