摘要:
If after manufacture it is found that the thickness of a solid immersion lens is less than a target thickness value, an adjustment portion is adhered thereto by vapor deposition so as to reduce the amount of thickness deficiency. If the solid immersion lens is made of quartz glass, SiO2 is used as the material which is vapor deposited. If the thickness of the solid immersion lens is greater than the target value, then it is reduced by etching.
摘要:
The light from the image forming element 2 is reflected by the PBS 8, and is incident on the λ/4 plate 7 so that this light is converted into circularly polarized light. Subsequently, the light is subjected to a reflection/diffraction effect and image focusing effect by the reflective type HOE 6. Then, this light again passes through the λ/4 plate 7, and is transmitted through the PBS 8. As a result, the light enters the eye of the user after being synthesized with light from the outside world. The system is devised so that the relationships of −5
摘要:
A method for cleaning polysilicon comprises steps of cleaning solid or granular polysilicon with an aqueous solution of dissolved ozone, and of cleaning with hydrofluoric acid the polysilicon receiving the above cleaning based on an aqueous solution of dissolved ozone, wherein the above steps are executed once in this order, or the above steps are repeated once or more in this order. Subsequent to the last cleaning step using hydrofluoric acid, a still other step of cleaning the polysilicon with pure water and then drying it is preferably added.This method for cleaning polysilicon allows organic materials, particles and metal impurities adsorbed on the surface of polysilicon to be removed at a low cost, and to increase the freeing rate.
摘要:
A pressure-proof optical apparatus used a high-pressure environment such as a deep sea, comprises an external side optical member disposed on the side of an external region, an internal side optical member disposed on the side of an internal region, a liquid filling portion formed by filling a space between the external side optical member and the internal side optical member with a liquid, and a liquid receding passageway for receding the liquid in the liquid filling portion if the external side optical member deforms. The external side optical member, the internal side optical member and the liquid are transparent with respect to the light that should be observed. At least one of the external side optical member and the internal side optical member may have refracting power.
摘要:
A drive apparatus for a sunroof comprises a rotation output shaft connected to a drive source through a first reduction gear and adapted to connect to a driven member of the sunroof and a detecting mechanism arranged on the same axis of that of the rotation output shaft and detecting a moving position of a sunroof panel in synchronous with a rotation of a rotating plate connected to the rotation output shaft through a second reduction gear.
摘要:
A sun-roof device for use in a vehicle having a roof includes an open portion formed in the roof and having a pair of parallel spaced side peripheries each of which extends in a lengthwise direction of the vehicle. A frame is fixed to the roof so as to be located below the roof and has a pair of guide rails each of which extends along a side periphery of the opening portion. A movable panel is provided for opening and closing the opening portion and a pair of sliding members are connected to the movable panel for moving the movable panel. The sliding members are each guided in one of the guide rails so as to be slidable in the lengthwise direction of the vehicle, and a draining groove member for draining water on the frame is provided below the frame and separate from the frame.
摘要:
A pyroelectric infrared array sensor has a pyroelectric element on which a plurality of sensing sections are formed each of which is made up of a pair of electrodes confronted with each other. In fixedly securing the pyroelectric element to a substrate, lead conductors extended from the sensing sections located adjacent to the edges of the light receiving surface of the pyroelectric element are fixedly connected to the substrate by using conductive paste.
摘要:
An inverse telephoto large aperture wide angle lens comprises a first lens group with a negative refractive power, a second lens group with a positive refractive power, a stop, a third lens group with a negative refractive power, and a fourth lens group with a positive refractive power arranged in the named order from a side of an object, in which for focusing on a near object from infinity the first lens group is fixed with respect to an image surface, and the second, third, and fourth lens groups are moved along an optical axis thereof toward the object such that a space between the first lens group and the second group and a space between the second lens group and the third lens group decrease, but a space between the third lens group and the fourth lens group increases.
摘要:
In an internal combustion engine, an injection hole is provided in the cylinder head to inject narrow streams of air towards the spark gap, particularly during idling and low load running conditions. The injected air is 5 to 30% by weight of the intake fuel-air mixture provided via the intake manifold and creates a swirl or turbulence thereby increasing combustibility. The hole is connected via a sub intake passage to the main air intake passage upstream of the venturi in the carburetor or between the venturi and throttle valve.
摘要:
A communication network system is disclosed in which local-branch-site-line network switches accommodating local-branch-site lines, and at least one data-center-site-line network switch accommodating at least one data-center-site line, are interconnected via a carrier network. This system include: a first bandwidth controller, disposed at each local-branch-site-line network switch, configured to limit a bandwidth of each of inbound packets and/or outbound packets to a pre-selected bandwidth α, wherein the inbound packets flow from the instant local-branch-site-line network switch or other local-branch-site-line network switches, and the outbound packets flow to the instant local-branch-site-line network switch or other local-branch-site-line network switches; and a second bandwidth controller, disposed at each local-branch-site-line network switch, configured to limit a bandwidth of each of inbound packets and/or outbound packets to a pre-selected bandwidth β broader than the bandwidth α, wherein the inbound packets flow from the data-center-site-line network switch, and the outbound packets flow to the data-center-site-line network switch.