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    • 22. 发明专利
    • Optical fiber light guide device
    • 光纤光导设备
    • JP2003043268A
    • 2003-02-13
    • JP2001228096
    • 2001-07-27
    • Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • KO ARATASHINODA KAZUNORI
    • G02B6/04
    • PROBLEM TO BE SOLVED: To provide an optical fiber light guide device which efficiently receives incident light and guides it.
      SOLUTION: A plurality of optical fibers (the diameter of the outer circumference of the core is 980 μm, the diameter of the outer circumference of the clad is 1,000 μm) are ground to a tapered shape so that the ground surfaces cross the axial direction with an angle of 0.19 degree and further cross the core part of an incidence surface. Here, the plurality of optical fibers are ground so that the two intersection lines of the incidence surface and the ground surfaces are mutually parallel and the length of each intersection lines at the core part is 700 μm. A light receiving surface is formed by arranging the incidence surface of the optical fibers thus ground in a line and approximately on the same plane, superposing the ground surfaces of the adjacent optical fibers and fixing the fibers.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种有效地接收入射光并引导它的光纤导光装置。 解决方案:将多根光纤(芯的外周的直径为980μm,包层的外周的直径为1,000μm)研磨成锥形,使得地面与轴向交叉, 角度为0.19度,并进一步穿过入射面的芯部。 这里,对多个光纤进行研磨,使得入射面和接地面的两条交叉线相互平行,并且芯部的每条交线的长度为700μm。 光接收表面通过将这样研磨的光纤的入射面布置在一条线上并且大致在同一平面上,使相邻光纤的接地表面重叠并固定光纤而形成。
    • 23. 发明专利
    • IMAGE PROJECTING DEVICE
    • JPH06118363A
    • 1994-04-28
    • JP26704592
    • 1992-10-06
    • HAMAMATSU PHOTONICS KK
    • SHINODA KAZUNORITAKECHI MORIOICHIE KOJI
    • G02F1/13
    • PURPOSE:To obtain a simple and small-sized image projecting device by obtaining three-primary color light for recording an image and for projecting an image by a single rotary filter. CONSTITUTION:The specific primary color light selected by a rotary plate 6a is reflected by a rotary plate 6b, and radiated to a pattern to be projected on a stage 18. A write light reflected in accordance with a color of this pattern to be projected is written in an optical modulator 22. Subsequently, the same primary color light is allowed to pass through as it is by the rotary plate 6b. The primary color light of only one polarization component reflected by a polarization beam splitter 28 is made incident on the optical modulator 22 as a read-out light. Only light of one polarization component in the read-out light reflected by the optical modulator 22 passes through the polarization beam splitter 28, therefore, an image enlarged and projected to a screen by a projection lens 40 becomes an image of the specific primary color of the pattern to be projected. When it is executed repeatedly at every primary color, the image of the three primary colors of the pattern to be projected is projected repeatedly, and a color enlarged image of the pattern to be projected can be obtained.
    • 25. 发明专利
    • ELECTRONIC IMAGE PROJECTING DEVICE
    • JPS61156222A
    • 1986-07-15
    • JP27894384
    • 1984-12-28
    • HAMAMATSU PHOTONICS KK
    • SHINODA KAZUNORIICHIE KOJI
    • H04N5/74G02F1/03G09F9/30
    • PURPOSE:To prevent the influence of an electron-optical crystal for forming electric charge image by natural double refraction so as to improve the projecting quality of an electronic image projector, by making a crystal for compensation to correspond to the electron optical crystal, upon which incoherent light is irradiated through a polarizer. CONSTITUTION:An electron gun 3 and the assembly 2 of an electron-optical crystal 22 for forming electron charge image and crystal 24 for compensation are enclosed in an electronic image forming tube 1. A high-resistance dielectric mirror 21 is provided on the surface of the crystal 22 and a transparent electrode 23 is provided at the rear surfade of the crystal 22. Intensity-modulated electrons from an image signal source 5 are deflected by deflecting coil 4 and an electric charge image is formed on the surface of the crystal 22. Light from an incoherent light source 12 is passed through is lens 9, polarizer 7, and beamsplitter 6 and made incident on the device 2 from the crystal 24 side. The light then reaches the mirror 21 and effected. The crystal 24 has a optical path length which is almost equal to that of the crystal 22 in the direction of thickness and is arranged with its crystal axis being rotated by 90 deg. from the axis of the crystal 22. Therefore, the influence of the crystal 22 by natural double refraction can be prevented and the projecting quality of the enlarged image on a screen 1 can be improved.
    • 26. 发明专利
    • Space optical modulation tube
    • 空间光调制管
    • JPS59189542A
    • 1984-10-27
    • JP6276383
    • 1983-04-08
    • Hamamatsu Photonics Kk
    • HARA TSUTOMUSHINODA KAZUNORIOOI YOSHIHARU
    • G02F1/03H01J31/50
    • H01J31/50
    • PURPOSE:To prevent deterioration of the optical crystal surface in the process of evacuation and improve its image storing characteristic, by coating the surface of the optical crystal storing the photoelectron emitted by the photoelectric surface with a layer of dielectric material stable in high vacuum and under high temperature. CONSTITUTION:The image from the input pattern 1 incident on the photoelectric surface 4 provided in the vacuum vessel 3 is brought to and stored on the optical crystal 8 of LiNbO3 or the like through the focusing lens system 5 and the microchannel plate 6, the refraction factor of the same is varied, and the image 11 is obtained by irradiation from the laser source 10. The optical crystal 8 then is provided on its front surface with a coating layer of an dielectric material stable in high vacuum and under high temperature formed from SiO2, CeO2, ZrO2, Al2O3, or the like, by high-frequency sputtering method in the atmosphere of (Ar+O2). Therefore, the dissipation of O2 or Li2O from the surface of the crystal 8 in the process of the evacuation leading to formation of defects in the crystal is preventd and a good image storing characteristic can be provided.
    • 目的:为了防止抽真空过程中的光学晶体表面​​的劣化,并提高其图像存储特性,通过将由光电表面发射的光电子的光学晶体的表面涂覆在高真空下稳定的介电材料层下面 高温。 构成:通过聚焦透镜系统5和微通道板6将入射到真空容器3内的光电面4上的输入图案1的图像带入并储存在LiNbO 3等的光学晶体8上, 因此,通过激光源10的照射获得图像11.然后,光学晶体8在其前表面上设置有在高真空下稳定并且在高温下形成的电介质材料的涂层 SiO 2,CeO 2,ZrO 2,Al 2 O 3等,在(Ar + O 2)的气氛中通过高频溅射法。 因此,防止在形成晶体缺陷的抽空过程中从晶体8的表面出来的O 2或Li 2 O的消散,并且可以提供良好的图像存储特性。
    • 29. 发明专利
    • INSTRUMENT FOR INSPECTING NASAL CAVITY VENTILATION RATE
    • JP2000126157A
    • 2000-05-09
    • JP30540098
    • 1998-10-27
    • HAMAMATSU PHOTONICS KK
    • BA TOSHITAKESAKAMOTO SHIGERUSHINODA KAZUNORI
    • A61B5/08A61B5/087
    • PROBLEM TO BE SOLVED: To provide a nasal cavity ventilation rate-inspecting instrument which can measure a snorting pattern of a subject at a higher accuracy. SOLUTION: An inspecting instrument 10 which is designed to inspect the degree of nostril snorting of a subject P by imaging a snorting pattern of waster drops W generated on the entire surface 1a of an examination plate 1 is provided with an optical system to irradiate the plate 1 with parallel light from the side of the other surface 1b thereof, a spot light source 5 to admit the light into the plate 7, an imaging device 6 which receives the light emitted fro the plate 1 through the optical system to photograph a snorting pattern and a case 8 which has an opposed surface 11a facing the mouth of the subject P while covering the light source 5, the optical system and the imaging device with the one surface arranged with the opposed surface 11a at an acute angle. In this case, when the subject places his nose on the plate 1, his mouth is becomes hard to hit against the case thereby enabling stale arrangement thereof at a proper position. Moreover, the combination of the light source 5 and the optical system allows reduction in occupying spaces of the light source 5, the optical system and the imaging device 6.