摘要:
Disclosed is a spatial switching apparatus having a plurality of input terminals, an input optical signal of a single wavelength being input to each of the plurality of the input terminals, and a plurality of output terminals an output optical signal of a single wavelength being output from each of the plurality of the output terminals. The apparatus includes a signal wavelength converting portion having an electric signal converting element converting the input optical signal into an electric signal and a variable wavelength laser, the signal wavelength converting portion using the variable wavelength laser to convert an electric signal converted by the electric signal converting element into an optical signal of an arbitrary wavelength; and a spatial switching portion having a plurality of first cyclic AWGs performing output from a plurality of output ports corresponding to wavelengths of a plurality of input signals input from the variable wavelength laser.
摘要:
A high pressure discharge lamp with auxiliary lamp comprises: a high pressure discharge lamp having an arc tube and at least one sealing portion, a pair of main electrodes, and a pair of feeders supplying power to the main electrodes; an auxiliary lamp having an airtight case, an inner electrode, and an outer electrode, wherein the inner electrode is arranged at a position so as to part the inner space to large and small spaces, the outer electrode is arranged at a position so as to face the large space, the auxiliary lamp as arranged as the large space faces the sealing portion.
摘要:
In an automatic screw tightening apparatus, a feed head unit is movable to and from close contact with a driver bit portion. The driver bit portion contacts the screw and sucks the head portion of the screw in close contact. The feed head unit includes a longitudinal groove opened to the outside and connected to a vertically extending screw feed hole. Only a thread portion of the screw is capable of horizontally advancing and retreating in the longitudinal groove.
摘要:
A focal plane shutter includes: first, second, and third boards respectively including openings through which light enters an image pickup element from an object side, and arranged in this order from the object side toward the image pickup element side; a blade arranged between the first and second boards and capable of opening and closing the openings; and a holding member arranged between the second and third boards, not coupled to the blade, and holding the second board from the image pickup element side.
摘要:
A semiconductor device having a first semiconductor section including a first wiring layer at one side thereof; a second semiconductor section including a second wiring layer at one side thereof, the first and second semiconductor sections being secured together with the respective first and second wiring layer sides of the first and second semiconductor sections facing each other; a conductive material extending through the first semiconductor section to the second wiring layer of the second semiconductor section and by means of which the first and second wiring layers are in electrical communication; and an opening, other than the opening for the conductive material, which extends through the first semiconductor section to the second wiring layer.
摘要:
There are provided a light source device and a display device which do not generate a wrinkle on an optical sheet even if the optical sheet is held on an LED substrate. A reflection sheet is disposed between each of head portions possessed by a rivet, a positioning rivet and a support rivet and one surface of an LED substrate where an LED is mounted, and a gap in a direction of a sheet thickness is provided between the head portion of each of the rivets and the reflection sheet. In the case in which a sudden thermal change is caused, therefore, the reflection sheet expands or contracts between the head portion of each of the rivets and the reflection sheet so that the wrinkle can be prevented from being generated over the reflection sheet.
摘要:
A solid-state imaging device includes a plurality of pixels, each of which includes a photoelectric converter section formed on a first substrate to generate and accumulate signal charges corresponding to incident light, a charge accumulation capacitor section formed on the first substrate or a second substrate to temporarily hold the signal charges transferred from the photoelectric converter section, and a plurality of MOS transistors formed on the second substrate to transfer the signal charges accumulated in the charge accumulation capacitor section, connection electrodes formed on the first substrate, and connection electrodes formed on the second substrate and electrically connected to the connection electrodes formed on the first substrate.
摘要:
Disclosed is a spatial switching apparatus having a plurality of input terminals, an input optical signal of a single wavelength being input to each of the plurality of the input terminals, and a plurality of output terminals an output optical signal of a single wavelength being output from each of the plurality of the output terminals. The apparatus includes a signal wavelength converting portion having an electric signal converting element converting the input optical signal into an electric signal and a variable wavelength laser, the signal wavelength converting portion using the variable wavelength laser to convert an electric signal converted by the electric signal converting element into an optical signal of an arbitrary wavelength; and a spatial switching portion having a plurality of first cyclic AWGs performing output from a plurality of output ports corresponding to wavelengths of a plurality of input signals input from the variable wavelength laser.
摘要:
An optical wavelength multi/demultiplexer having transmission characteristics with a higher rectangular degree than a conventional one includes an AWG and two-stage lattice circuit. An example of a two-stage lattice circuit according to the present invention includes an input waveguide, a third optical coupler, a third and fourth arm waveguides, a second optical coupler, a first and second arm waveguides, a first optical coupler, and output waveguides. The optical path length differences between the third and fourth arm waveguides and between the first and second arm waveguides are designed to be ΔL. The path passing the third and first arm waveguides differs by 2·ΔL in optical length from that the fourth and second arm waveguides. The paths passing the third and second arm waveguides and passing the fourth and first arm waveguides differ by ΔL from that passing the fourth and second arm waveguides.
摘要:
An object of the present invention is to provide a crucible handling device that can firmly sandwich and reliably move a quartz glass crucible under a clean environment and a method of handling a quartz glass crucible using the crucible handling device. The present invention provides a crucible handling device 1 for handling a quartz glass crucible 5, the device including: a frame 4 having a beam 2 extending in a horizontal direction and a pair of arms 3 protruding from the beam 2 in a direction perpendicular to a central axis line direction of the beam 2 such that at least one of the arms 3 is able to move in the central axis line direction of the beam 2; a pair of sandwiching means 6 assembled with the pair of the arm 3 to face each other, for sandwiching a body 50 of the quartz glass crucible 5 in a radial direction of the crucible; engagement means 7 provided adjacent to each sandwiching means 6 and formed by a pair of tongues 70 movable to approach or be separated from each other in a central axis direction of the crucible, for sandwiching and holding the quartz glass crucible 5 therebetween in the central axis direction of the crucible; and driving means 8 for causing the sandwiching means 6 and the engagement means 7 to reciprocate along the arm 3. The present invention also provides a method of handling a quartz glass crucible using such a device 1 as described above.