Projection color display apparatus
    1.
    发明授权
    Projection color display apparatus 失效
    投影彩色显示设备

    公开(公告)号:US5135300A

    公开(公告)日:1992-08-04

    申请号:US645631

    申请日:1991-01-25

    IPC分类号: H04N9/31

    CPC分类号: H04N9/315

    摘要: Three light fluxes are modulated by corresponding light valves so as to project a color image on a screen. An interference filter for selectively transmitting a light flux which is emitted in a direction perpendicular to a light emitting surface of the interference filter is disposed on the light-emitting portion so as to increase the intensity of light fluxes which are emitted in the forward direction. A light-flux-emitting portion of a light source and the light valve have approximately the same configuration so that the intensity of the light fluxes to be projected on the light valves is increased.

    摘要翻译: 三个光通量由相应的光阀调制,以便将彩色图像投射在屏幕上。 用于选择性地发射在与干涉滤光器的发光表面垂直的方向上发射的光束的干涉滤光器设置在发光部分上,以便增加沿正向发射的光束的强度。 光源的光束发射部分和光阀具有大致相同的构造,使得要投射到光阀上的光束的强度增加。

    Color projection type display apparatus having three liquid displays of
same structure
    2.
    发明授权
    Color projection type display apparatus having three liquid displays of same structure 失效
    具有三个相同结构的液体显示器的彩色投影型显示装置

    公开(公告)号:US5691785A

    公开(公告)日:1997-11-25

    申请号:US659562

    申请日:1996-06-10

    IPC分类号: G02B27/28 H04N9/31 G02F1/1335

    摘要: The present invention provides a color projector utilizing three liquid crystal display elements. The natural light is separated into illuminating rays of red, green and blue colors by a dichroic mirror, each of these illuminating rays being used to illuminate the corresponding one of the liquid crystal display elements. Each of the liquid crystal display elements is controlled by a desired image signal with respect to its transmittance at each pixel. After passed through the liquid crystal display elements, three kinds of colored illuminating rays are again synthesized by the other dichroic mirror to form a light beam which in turn is enlarged and projected by a projecting lens on a screen. By providing light source means including means for converting the natural light into the linearly polarized beam, the illuminating rays may have their polarizing angles coincide with each other without any loss of light. As the linearly polarized beam is reflected by the mirror system, the illuminating rays of red, green and blue colors are changed with respect to their polarizing angels. Depending on the changed polarizing angles, the polarizing angle of the light rays incident on each of the liquid crystal display elements may be adjusted to remove any loss of light.

    摘要翻译: 本发明提供一种利用三个液晶显示元件的彩色投影仪。 通过二向色镜将自然光分离为红色,绿色和蓝色的照射光,这些照射光用于照射相应的一个液晶显示元件。 每个液晶显示元件通过相对于其在每个像素处的透射率的期望的图像信号来控制。 在通过液晶显示元件之后,再次通过另一个分色镜合成三种彩色照明光线,以形成光束,该光束又由投影透镜放大并投影在屏幕上。 通过提供包括用于将自然光转换成线偏振光束的装置的光源装置,照射光线可以使它们的偏振角度彼此一致而没有任何光损失。 当线偏振光束被反射镜系统反射时,红色,绿色和蓝色的照明光线相对于其极化天使而改变。 根据变化的偏振角,可以调整入射到每个液晶显示元件上的光线的偏振角,以消除任何光的损失。

    Projection display apparatus, and light guide tube/light valve for use
in the same
    3.
    发明授权
    Projection display apparatus, and light guide tube/light valve for use in the same 失效
    投影显示装置,以及用于其的导光管/光阀

    公开(公告)号:US5321789A

    公开(公告)日:1994-06-14

    申请号:US760887

    申请日:1991-09-17

    摘要: A light valve is a planar member in which liquid crystals are hermetically sealed, and allows the transmission of light in an almost parallel direction and selectively scattering undesired light. On a rear surface of the light valve is disposed a light guide tube which contains a plurality of minute apertures. Alternatively, one of the substrates which constitute the light valve may be made of a fiber plate. The fiber plate has a structure in which short optical fibers are stacked. The light guide tube or the fiber plate converges a luminous flux emitted from the light valve to improve the contrast of an image. A projection display apparatus is constituted of a light source, a light valve, either a light guide tube or a fiber plate, a lens, and a projection lens. A luminous flux emitted from either the light guide tube or the fiber plate is incident on the pupil of the projection lens by way of the lens, and the projection lens casts this luminous flux onto a screen, thus forming a projected image. The selectively scattered undesired light cannot pass through the light guide tube or file plate.

    摘要翻译: 光阀是其中液晶被气密密封的平面构件,并且允许光在几乎平行的方向上透射并选择性地散射不期望的光。 在光阀的后表面设置有包含多个微小孔的导光管。 或者,构成光阀的基板之一可以由纤维板制成。 纤维板具有堆叠短纤维的结构。 导光管或光纤板收敛从光阀发射的光通量,以改善图像的对比度。 投影显示装置由光源,光阀,导光管或光纤板,透镜和投影透镜构成。 从导光管或光纤板发出的光束通过透镜入射到投影透镜的光瞳上,并且投影透镜将该光束投射到屏幕上,从而形成投影图像。 选择性散射的不想要的光不能通过导光管或文件板。

    Projection-type display device having light source means including a
first and second concave mirrors
    4.
    发明授权
    Projection-type display device having light source means including a first and second concave mirrors 失效
    具有包括第一和第二凹面镜的光源装置的投射型显示装置

    公开(公告)号:US5142387A

    公开(公告)日:1992-08-25

    申请号:US682626

    申请日:1991-04-09

    摘要: The projection-type display device has a light source emitting a parallel luminous flux, a liquid crystal light valve disposed on the luminous flux and outputs a rectangular two-dimensional image to be projected on a screen, and a projection lens magnifying the rectangular two-dimensional image output. The light source has a first concave mirror (parabolic mirror) the reflective surface of which is oriented in the direction of emission of the luminous flux, a lamp laced in front of the first concave mirror, and a second concave mirror (parabolic mirror or spherical mirror), the reflective surface of which is oriented toward the first concave mirror. In the second concave mirror is formed an aperture window, which is a rectangle of substantially similar to that of the liquid crystal light valve and emits a rectangular luminous flux. The beam from the lamp is reflected by the first concave mirror, and one or more times by the second concave mirror, becoming a parallel beam oriented in the direction of the optical axis. The parallel light beam is made into a luminous flux of rectangular cross section by the rectangular aperture window. Accordingly, luminous flux is not blocked wastefully, but serves to increase the brightness of the projected image.

    摘要翻译: 投影型显示装置具有发出平行光束的光源,配置在光束上的液晶光阀,输出要投影在屏幕上的矩形二维图像,以及放大矩形二维图像的投影透镜, 三维图像输出。 光源具有第一凹面镜(抛物面镜),其反射表面沿着光束的发射方向定向,一个位于第一凹面镜前面的灯和一个第二凹面镜(抛物面镜或球形 反射镜),其反射表面朝向第一凹面镜。 在第二凹面镜中形成有与液晶光阀基本相同的矩形的孔眼,并且发出矩形光束。 来自灯的光束被第一凹面镜反射,并且被第二凹面镜反射一次或多次,成为沿光轴方向取向的平行光束。 平行光束由矩形孔径窗形成为矩形截面的光通量。 因此,光通量不被浪费地阻挡,但是用于增加投影图像的亮度。

    Color projection type display apparatus having three liquid crystal
displays of same structure
    5.
    发明授权
    Color projection type display apparatus having three liquid crystal displays of same structure 失效
    具有三个相同结构的液晶显示器的彩色投影型显示装置

    公开(公告)号:US5570209A

    公开(公告)日:1996-10-29

    申请号:US203607

    申请日:1994-02-28

    摘要: The present invention provides a color projector utilizing three liquid crystal display elements. The natural light is separated into illuminating rays of red, green and blue colors by a dichroic mirror, each of these illuminating rays being used to illuminate the corresponding one of the liquid crystal display elements. Each of the liquid crystal display elements is controlled by a desired image signal with respect to its transmittance at each pixel. After passed through the liquid crystal display elements, three kinds of colored illuminating rays are again synthesized by the other dichroic mirror to form a light beam which in turn is enlarged and projected by a projecting lens on a screen. By providing light source means including means for converting the natural light into the linearly polarized beam, the illuminating rays may have their polarizing angles coincide with each other without any loss of light. As the linearly polarized beam is reflected by the mirror system, the illuminating rays of red, green and blue colors are changed with respect to their polarizing angels. Depending on the changed polarizing angles, the polarizing angle of the light rays incident on each of the liquid crystal display elements may be adjusted to remove any loss of light.

    摘要翻译: 本发明提供一种利用三个液晶显示元件的彩色投影仪。 通过二向色镜将自然光分离为红色,绿色和蓝色的照射光,这些照射光用于照射相应的一个液晶显示元件。 每个液晶显示元件通过相对于其在每个像素处的透射率的期望的图像信号来控制。 在通过液晶显示元件之后,再次通过另一个分色镜合成三种彩色照明光线,以形成光束,该光束又由投影透镜放大并投影在屏幕上。 通过提供包括用于将自然光转换成线偏振光束的装置的光源装置,照射光线可以使它们的偏振角度彼此一致而没有任何光损失。 当线偏振光束被反射镜系统反射时,红色,绿色和蓝色的照明光线相对于其极化天使而改变。 根据变化的偏振角,可以调整入射到每个液晶显示元件上的光线的偏振角,以消除任何光的损失。

    Projection display device
    6.
    发明授权
    Projection display device 失效
    投影显示设备

    公开(公告)号:US5123729A

    公开(公告)日:1992-06-23

    申请号:US687942

    申请日:1991-04-19

    CPC分类号: H04N9/3152 H04N5/7441

    摘要: In a projection display device having an illumination optical system which converts the light emitted from a point light source into a substantially parallel luminous flux, a light valve which modulates the light flux, and an optical projection system which projects images on the light valve onto a screen, the illumination optical system converts the light into a substantially parallel luminous flux having a cross section of substantially the same size and shape, e.g., rectangular shape, as the shape of the frame of the light valve.

    摘要翻译: 在具有将从点光源发出的光转换为大致平行的光束的照明光学系统的投影型显示装置中,调整光通量的光阀和将光阀上的图像投影到 照明光学系统将光转换成具有与光阀的框架的形状相似的大小和形状(例如矩形)的横截面的基本平行的光束。

    Process for preparing alkyl-subtituted aromatic hydrocarbons
    7.
    发明授权
    Process for preparing alkyl-subtituted aromatic hydrocarbons 失效
    制备烷基取代的芳烃的方法

    公开(公告)号:US5227559A

    公开(公告)日:1993-07-13

    申请号:US815889

    申请日:1992-01-07

    IPC分类号: C07C2/72

    摘要: An alkyl-substituted hydrocarbon is prepared by alkylating an aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating an alumina, an alkali metal hydroxide and an alkali metal or an alumina containing at least 1.3% by weight of water and an alkali metal in an inert gas atmosphere at a specific temperature as a catalyst.

    摘要翻译: 烷基取代的烃是通过在固体碱的存在下,通过将烯烃在侧链的α位上具有至少一个氢原子的芳族烃烷基化而制备的,该固体碱可以通过加热氧化铝,碱金属氢氧化物和 碱金属或含有至少1.3重量%水和碱金属的氧化铝在惰性气体气氛中以特定温度作为催化剂。

    Process for the preparation of lactones
    8.
    发明授权
    Process for the preparation of lactones 失效
    制备乳液的方法

    公开(公告)号:US4105673A

    公开(公告)日:1978-08-08

    申请号:US724845

    申请日:1976-09-20

    IPC分类号: C07D313/00

    CPC分类号: C07D313/00

    摘要: An improved process for producing a large ring lactone which comprises subjecting a hydroxy acid to intramolecular condensation by the use of a 1-substituted-2-halopyridinium salt or a 1-substituted-2-haloquinolinium salt as a condensing agent in the presence of an acid captor in an anhydrous organic solvent. According to this process, a variety of lactones, even complex lactones such as macrolides can be obtained in good yields.

    Continuous process for producing 5-vinyl-2-norbornene
    9.
    发明授权
    Continuous process for producing 5-vinyl-2-norbornene 失效
    连续生产5-乙烯基-2-降冰片烯的方法

    公开(公告)号:US4777309A

    公开(公告)日:1988-10-11

    申请号:US104516

    申请日:1987-09-29

    CPC分类号: C07C7/20 C07C2/50 C07C2102/42

    摘要: A continuous process for producing 5-vinyl-2-norbornene, useful as the raw material of 5-ethylidene-2-norbornene used as a termonomer for EPDM, from a mixture of cyclopentadiene and butadiene or from a mixture of cyclopentadiene and dicyclopentadiene and butadiene by the Diels-Alder reaction which process comprises adding from 10 to 10,000 ppm of N,N-diethylhydroxylamine or 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxyl relative to the total weight of cyclopentadiene and butadiene or of a mixture of cyclopentadiene and dicyclopentadiene and butadiene, continuously introducing the resulting mixture into a pressure reaction vessel, allowing them to react in the absence of any gas phase portion within the said pressure reaction vessel, and continuously withdrawing the reaction product.

    摘要翻译: 从环戊二烯和丁二烯的混合物或环戊二烯和二环戊二烯与丁二烯的混合物生产5-乙烯基-2-降冰片烯的连续方法,其用作EPDM的三元共聚物的5-亚乙基-2-降冰片烯的原料 通过Diels-Alder反应,该方法包括相对于环戊二烯和丁二烯的总重量加入10至10,000ppm的N,N-二乙基羟胺或4-氧代-2,2,6,6-四甲基哌啶-1-氧基,或 环戊二烯和二环戊二烯和丁二烯的混合物,将所得混合物连续引入压力反应容器中,使它们在所述压力反应容器内不存在任何气相部分的情况下反应,并连续地抽出反应产物。

    Process for preparing 5-ethylidene-2-norbornene with high quality
    10.
    发明授权
    Process for preparing 5-ethylidene-2-norbornene with high quality 失效
    高品质制备5-亚乙基-2-降冰片烯的方法

    公开(公告)号:US4727204A

    公开(公告)日:1988-02-23

    申请号:US943067

    申请日:1986-12-18

    IPC分类号: B01J23/04 C07C5/25

    CPC分类号: B01J23/04 C07C5/2556

    摘要: 5-Ethylidene-2-norbornene with high quality is effectively prepared by isomerization 5-vinyl-2-norbornene containing 1 ppm to 0.5% by weight of 4-vinylcyclohexene in the presence of at least one catalyst selected from the group consisting of a solid base catalyst which is prepared by reacting alumina, an alkali metal hydroxide and an alkali metal in a temperature range of 200.degree. to 500.degree. C. and a solid base catalyst which is prepared by reacting water-containing alumina and an alkali metal in such an amount that exceeds a molar equivalent of water contained in alumina at a temperature in a range between a melting point of the alkali metal and 500.degree. C. in an inert gas atmosphere.

    摘要翻译: 在至少一种选自固体的催化剂存在下,通过异构化含有1ppm至0.5重量%的4-乙烯基环己烯的5-乙烯基-2-降冰片烯有效地制备了高质量的5-亚乙基-2-降冰片烯 碱催化剂,其通过使氧化铝,碱金属氢氧化物和碱金属在200〜500℃的温度范围内反应而制备,固体碱催化剂是通过使含水氧化铝和碱金属在这种 在惰性气体气氛下,在碱金属的熔点和500℃之间的温度范围内,超过摩尔当量的氧化铝中的水分。