Projection type display apparatus
    31.
    发明授权
    Projection type display apparatus 失效
    投影式显示装置

    公开(公告)号:US5264879A

    公开(公告)日:1993-11-23

    申请号:US641790

    申请日:1991-01-16

    申请人: Shinsuke Shikama

    发明人: Shinsuke Shikama

    CPC分类号: H04N9/3105 H04N9/317

    摘要: A projection type display apparatus for displaying an enlarged composite image being composed of images each of which is produced upon a plurality of light valves upon a screen in every independent primary color. A correcting lens which corrects a projection magnification factor of the image formed by the light valve is disposed in the vicinity of at least one light valve on the projecting lens system side. The correcting lens adjusts the projection magnification factor of the image in each primary color to a predetermined factor. With this result, the disparity of pixels among the primary colors due to the chromatic aberration of magnification is corrected, and it becomes possible to obtain a high quality projection image.

    摘要翻译: 一种投影型显示装置,用于在每个独立原色的屏幕上显示由多个光阀产生的图像组成的放大合成图像。 校正由光阀形成的图像的投影倍率的校正透镜设置在投影透镜系统侧的至少一个光阀附近。 校正透镜将每个基色中的图像的投影放大系数调整到预定的因子。 由此,校正了由于倍率的色差引起的原色之间的像素的差异,并且可以获得高质量的投影图像。

    Optical head utilizing diffraction grating
    32.
    发明授权
    Optical head utilizing diffraction grating 失效
    光头利用衍射光栅

    公开(公告)号:US4817072A

    公开(公告)日:1989-03-28

    申请号:US66009

    申请日:1987-06-24

    摘要: In an optical type head device comprising a light source for emitting a light beam, a beam splitter, a condensor lens and a light detector for receiving said light beam for photoelectric conversion wherein a diffraction grating is provided to separate the light beam into a plurality of subbeams consisting of a zero-order subbeam and other subbeams so that a focussing error of the spot of the zero-order subbeam on an optical type data storing medium is detected by the fact that the light spot of the zero-order subbeam is deformed on the light detector, and a positional error of the spot of the zero-order subbeam with respect to a data track on the optical type data storing medium is detected depending on the position of the spots of the other subbeams.

    摘要翻译: 在包括用于发射光束的光源的光学头部装置中,分束器,聚光透镜和用于接收所述用于光电转换的光束的光检测器,其中提供衍射光栅以将光束分离成多个 由零阶子束和其他子束组成的子束,使得零级子束的光点在光学型数据存储介质上的聚焦误差由零级子光束的光斑变形的事实被检测到 根据其他子光束的光斑的位置来检测光检测器和零级子束相对于光学型数据存储介质上的数据轨迹的位置误差。

    Optical head device having positionally adjustable parts
    33.
    发明授权
    Optical head device having positionally adjustable parts 失效
    具有位置可调节部件的光学头装置

    公开(公告)号:US4797545A

    公开(公告)日:1989-01-10

    申请号:US52860

    申请日:1987-04-29

    摘要: In an optical head device, the distance between a light source, such as a semiconductor laser, and a condensing lens is altered along the optical axis thereof, so that the resulting spherical aberration may offset any component of spherical aberration that exists in an optical system as an inherent defect, whereby the wave-front aberration of the beam concentrated through the condensing lens is reduced. The device, therefore, includes an optical condensing system of improved aberration and condensation property.

    摘要翻译: PCT No.PCT / JP86 / 00416 Sec。 371日期1987年4月29日 102(e)日期1987年4月29日PCT提交1986年8月14日PCT公布。 公开号WO87 / 01466 日期:1987年3月12日。在光学头装置中,诸如半导体激光器的光源和聚光透镜之间的距离沿其光轴改变,使得所得到的球面像差可以抵消球形的任何分量 存在于作为固有缺陷的光学系统中的像差,由此缩小通过聚光透镜聚集的光束的波前像差。 因此,该装置包括具有改善的像差和缩合性能的光学聚光系统。

    Method for draw forming glass fibers
    34.
    发明授权
    Method for draw forming glass fibers 失效
    拉丝成形玻璃纤维的方法

    公开(公告)号:US4197103A

    公开(公告)日:1980-04-08

    申请号:US825113

    申请日:1977-08-16

    摘要: An apparatus for draw forming glass filaments includes a melt furnace 1 having a bottom plate 12 with a plurality of flow holes therein, each terminating in a conical nozzle tip 2. Cooling fins 10 extend outwardly from a water pipe 11 and are disposed between the rows of tips, and additional cooling is provided at least during the initial start-up period by air blown across the nozzle tips from a manifold 13 disposed opposite the water pipe. With such an arrangement the flow hole diameters may be increased, which results in an exponential increase in the molten glass flow rate and filament production rate, while still achieving smooth initial and stable continuous filament forming conditions.

    摘要翻译: 拉丝成形玻璃丝的装置包括:熔化炉1,其具有底板12,底板12中具有多个流动孔,每个终止于锥形喷嘴尖端2.冷却翅片10从水管11向外延伸并设置在排之间 并且至少在初始启动期间通过从与水管相对设置的歧管13喷射的喷嘴尖端的空气提供额外的冷却。 通过这样的布置,可以增加流通孔直径,这导致熔融玻璃流量和丝生产速率的指数增加,同时仍能实现顺利的初始和稳定的连续长丝成形条件。

    Speckle removing light source and lighting apparatus
    35.
    发明申请
    Speckle removing light source and lighting apparatus 有权
    散斑去除光源和照明装置

    公开(公告)号:US20090080054A1

    公开(公告)日:2009-03-26

    申请号:US11920916

    申请日:2005-07-11

    IPC分类号: G02B26/02 H01S3/10

    摘要: Provided are a speckle removing light source capable of removing speckle by using laser light whose wavelength is temporally changed and a lighting apparatus for producing an image from which the speckle is removed. Provided is a speckle removing light source, including: a light source for outputting laser light; and a light frequency modulator for changing a wavelength of the laser light, in which: the wavelength of the laser light outputted from the light source is temporally changed by the light frequency modulator; and the light frequency modulator has a predetermined period set for changing the wavelength of the laser light. Also, provided is a lighting apparatus, including: a spatial light modulator illuminated with the laser light outputted from the speckle removing light source to produce an image, in which the spatial light modulator has a period set for producing the image, and the period is longer than the period for changing the wavelength of the laser light by the light frequency modulator.

    摘要翻译: 提供一种能够通过使用其波长在时间上变化的激光去除斑点的散斑去除光源,以及用于制造除去斑点的图像的照明装置。 提供了一种除斑光源,包括:用于输出激光的光源; 以及用于改变激光波长的光频调制器,其中:从光源输出的激光的波长由光频调制器暂时改变; 并且光频调制器具有设定用于改变激光波长的预定周期。 另外,本发明提供一种照明装置,其特征在于,包括:由从所述散斑去除光源输出的激光照射的空间光调制器,生成图像,所述空间光调制器具有设定用于产生图像的周期,所述周期为 比通过光频调制器改变激光波长的时间长。

    Fresnel optical element and projection display device
    36.
    发明授权
    Fresnel optical element and projection display device 有权
    菲涅尔光学元件和投影显示装置

    公开(公告)号:US07242536B2

    公开(公告)日:2007-07-10

    申请号:US10545569

    申请日:2004-10-04

    IPC分类号: G02B3/08

    摘要: Each of a plurality of Fresnel prisms 12 is formed so that a refracting surface 12 thereof includes a non-light incidence surface 12c upon which any ray of light emitted from a projector 1 is not directly incident because it is intercepted by another Fresnel prism 12, the non-light incidence surface having an angle τ′ with a reflecting surface 12b which is different from the prism apex angle τ of each of the plurality of Fresnel prisms. As a result, a ray of light reflected by the refracting surface 12a of each of the plurality of Fresnel prisms without passing through the refracting surface can be preventing from emerging, as unnecessary light, toward the viewer's line of sight.

    摘要翻译: 多个菲涅耳棱镜12中的每一个被形成为使得其折射表面12包括非投光表面12c,在那里从投影仪1发射的任何光线不会直接入射,因为它被另一菲涅尔棱镜12截取 ,非光入射表面具有角度τ',其具有与多个菲涅耳棱镜中的每一个的棱镜顶角τ不同的反射表面12b。 结果,不会穿过折射表面的多个菲涅尔棱镜中的每一个的折射表面12a反射的光线可以防止作为不必要的光朝向观察者的视线而出现。

    Eyepiece image display apparatus
    38.
    发明授权
    Eyepiece image display apparatus 失效
    目镜图像显示装置

    公开(公告)号:US06288689B1

    公开(公告)日:2001-09-11

    申请号:US09073868

    申请日:1998-05-07

    申请人: Shinsuke Shikama

    发明人: Shinsuke Shikama

    IPC分类号: G09G500

    摘要: In a signal processing circuit used for displaying an image on a two-dimensional display element, an inverse-distorted image creator is provided which previously distorts the image to be displayed on the two dimensional display element so as to have a characteristic inverse to the distortion generated in the eyepiece optical system. The inverse-distortion correction is made for each of the image signals of the three primary colors R, G and B.

    摘要翻译: 在用于在二维显示元件上显示图像的信号处理电路中,提供了一种逆变形图像创建器,其先前将要显示在二维显示元件上的图像扭曲成具有与失真相反的特性 在目镜光学系统中产生。 对于三原色R,G和B的每个图像信号进行逆失真校正。

    Retrofocus projection lens system and multivision projection display
apparatus
    39.
    发明授权
    Retrofocus projection lens system and multivision projection display apparatus 失效
    复现投影镜头系统和多功能投影显示设备

    公开(公告)号:US5973848A

    公开(公告)日:1999-10-26

    申请号:US946694

    申请日:1997-10-08

    CPC分类号: G02B13/04 G02B13/22

    摘要: A retrofocus projection lens system comprising, in order from a large conjugate side a first lens group having a negative refracting power and including a plurality of lenses, a second lens group having a positive refracting power, and a third lens group having a positive refracting power and including a plurality of lenses. The lens of the first lens group which is nearest to the large conjugate side is an aspherical lens, and the lens of the third lens group which is nearest to a small conjugate side is an aspherical lens. The retrofocus projection lens system desirable satisfy the following conditional expressions (1) to (3):1.8

    摘要翻译: 一种反聚焦投影透镜系统,其特征在于,从大共轭侧依次包括具有负折射率且包含多个透镜的第一透镜组,具有正折射率的第二透镜组和具有正折射率的第三透镜组 并且包括多个透镜。 最接近大共轭侧的第一透镜组的透镜是非球面透镜,并且最接近小共轭侧的第三透镜组的透镜是非球面透镜。 反射投影透镜系统满足以下条件式(1)〜(3):1.8

    Projection-type apparatus
    40.
    发明授权
    Projection-type apparatus 失效
    投影型设备

    公开(公告)号:US5671993A

    公开(公告)日:1997-09-30

    申请号:US238067

    申请日:1994-05-04

    申请人: Shinsuke Shikama

    发明人: Shinsuke Shikama

    摘要: A retro-focus type lens is provided from a large conjugate side with a first lens group having a negative refracting power, a second lens group having a positive refracting power which is spaced away from the first lens group at an air interval D1, and a third lens group having a positive refracting power. The following conditions are satisfied when focal lengths of the first lens group, the second lens group, the third lens group, and a total lens system are assumed respectively as f1, f2, f3, and f: 1.8

    摘要翻译: 从大共轭侧提供具有负折射率的第一透镜组的反向焦点型透镜,在空气间隔D1处与第一透镜组间隔开的具有正折射率的第二透镜组,以及 具有正折射率的第三透镜组。 分别假设第一透镜组,第二透镜组,第三透镜​​组和全透镜系统的焦距分别为f1,f2,f3和f:1.8