公开(公告)号：US4804884A

公开(公告)日：1989-02-14

申请号：US645922

申请日：1987-05-01

Applicant: Leendert Vriens ,  Johannes H. M. Spruit ,  John A. Clarke

Inventor： Leendert Vriens ,  Johannes H. M. Spruit ,  John A. Clarke

IPC: H04N5/74 ,  H01J29/28 ,  H01J31/10 ,  H04N9/31 ,  H01J29/89

CPC classification number: H01J29/28

Abstract: A projection television system comprising an array of three projection television display tubes (14) luminescing in red, green and blue, a focusing lens (16) associated with each tube and a display screen (12) on which the respective optical images are merged to form a single multicolored image. At least one of the display tubes (14) has a multilayer interference filter (46) between the phosphor (30) and the faceplate (20). In order to imprve the light output at the corners of the display screen (12), the cut-off angle of the first filter layers is varied between the center and the corners thereof, for example by increasing the optical thickness of the filter layers relative to the center.

Abstract translation: 一种投影电视系统，包括以红色，绿色和蓝色发光的三个投影电视显示管（14）的阵列，与每个管相关联的聚焦透镜（16）和显示屏（12），各个光学图像合并在其上 形成一个单一的多彩图像。 至少一个显示管（14）在荧光体（30）和面板（20）之间具有多层干涉滤光器（46）。 为了使显示屏幕（12）的角落处的光输出偏移，第一滤光层的截止角在其中心和角部之间变化，例如通过增加滤光层相对的光学厚度 到中心

公开(公告)号：US6057538A

公开(公告)日：2000-05-02

申请号：US923442

申请日：1997-09-04

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: H04N5/335 ,  G06T1/00 ,  H01L27/14 ,  H01L31/0232 ,  H04N1/028 ,  H01J40/14

CPC classification number: H01L31/0232 ,  H01L27/14623 ,  H01L27/14627

Abstract: An image sensor 10 includes an array of light responsive pixels 22 and an array 30 of focusing lens elements 32. Each lens element 32 is associated with a plurality of pixels 22, so that the lens elements may be fabricated simply. The array 30 is preferably part of a non-inverting focusing arrangement, and the lens elements 32 are preferably refractive microlens elements.

Abstract translation: 图像传感器10包括光响应像素阵列22和聚焦透镜元件32的阵列30.每个透镜元件32与多个像素22相关联，使得可以简单地制造透镜元件。 阵列30优选地是非反相聚焦装置的一部分，并且透镜元件32优选地是折射微透镜元件。

公开(公告)号：US5897191A

公开(公告)日：1999-04-27

申请号：US914053

申请日：1997-07-15

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: G02F1/13 ,  G02B5/30 ,  G02B27/14 ,  G02B27/28 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC classification number: G02B27/1046 ,  G02B27/145 ,  G02B5/3083 ,  H04N9/3105 ,  H04N5/7441

Abstract: A color image projection apparatus comprising a plurality of (LC) image display panels (33), each operating with light of a different color (R,G,B), whose outputs are combined by combining means (24, 25) and projected via a lens (28) onto a screen (32) and electro-optical deflection means, comprising a birefringent element (40) following the combining means and preceded by polarization switch means (42) operable to displace slightly the outputs from rows of pixels in each of the panels in either the odd or even fields so as to produce an interlaced image on the screen. Considerably improved performance is achieved by providing a respective, separate, polarization switch element between each display panel (33) and the combining means (24, 25), and preferably closely adjacent to the output side of the display panel.

Abstract translation: 一种彩色图像投影设备，包括多个（LC）图像显示面板（33），每个（LC）图像显示面板（33）以不同颜色的光（R，G，B）操作，其输出通过组合装置（24,25） 在屏幕（32）上的透镜（28）和电光偏转装置，包括在组合装置之后的双折射元件（40），之前是偏振开关装置（42），可操作以稍微移位每个像素中的像素的输出 在奇数或偶数场中的面板，以便在屏幕上产生隔行扫描图像。 通过在每个显示面板（33）和组合装置（24,25）之间提供相应的分离的偏振开关元件，并且优选地紧邻显示面板的输出侧来实现明显改善的性能。

公开(公告)号：US4699476A

公开(公告)日：1987-10-13

申请号：US807379

申请日：1985-12-10

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: G02B13/16 ,  G02B13/18 ,  G02B9/34

CPC classification number: G02B9/34 ,  G02B13/16 ,  G02B13/18

Abstract: A lens system is provided which is suitable for back-projecting an enlarged image of a TV cathode ray tube (CRT). To achieve a compact cabinet design 1 for such a projection television set, a short projection throw and a wide projection angle are required, together with a wide aperture (F/1) for a bright projected picture and with a definition which may need to be good enough to resolve 1249 line television pictures. The lens system comprises a CRT face plate FP which is either flat or has a relatively shallow curavature on one or both sides and four lens elements L1, L2, L3 and L4. L1 is a weak lens, L2 and L3 are each of positive power and L4 is a negative element close to the CRT. At least two of the element surfaces are aspheric. The powers of the elements are chosen so that-0.20K

Abstract translation: 提供一种适用于背投影电视阴极射线管（CRT）的放大图像的透镜系统。 为了实现这种投影电视机的紧凑的橱柜设计1，需要短投影和宽投影角，以及用于明亮投影图像的宽光圈（F / 1）和可能需要的定义 足够好解决1249线电视图片。 透镜系统包括CRT面板FP，其在一侧或两侧具有平坦的或具有相对浅的弯曲度，以及四个透镜元件L1，L2，L3和L4。 L1是弱透镜，L2和L3各自是正功率，L4是靠近CRT的负元件。 至少两个元件表面是非球面的。 选择元素的功率使得-0.20K

公开(公告)号：US4573769A

公开(公告)日：1986-03-04

申请号：US628376

申请日：1984-07-05

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: G02B13/16 ,  G02B13/18 ,  G02B17/08 ,  G03B21/20 ,  H04N5/74 ,  G02B9/06

CPC classification number: G02B17/086 ,  G02B13/16 ,  G02B13/18 ,  G03B21/20 ,  H04N5/7408 ,  G03B21/10 ,  G03B21/28

Abstract: A lens system is provided which is suitable for back-projecting an enlarged image of a TV cathode ray tube (CRT). To achieve a compact cabinet design 1 for such a projection television set, a short projection throw and a wider projection angle are required, together with a wide aperture (F/1) for a bright projected picture and with a definition sufficient to resolve 625 line television pictures. The lens system comprises a concave CRT face plate FP and only two lens elements L1, L2, each of positive power and each having one aspheric surface, the powers of the elements being chosen so that0.4K

Abstract translation: 提供一种适用于背投影电视阴极射线管（CRT）的放大图像的透镜系统。 为了实现这种投影电视机的紧凑的橱柜设计1，需要短投影和更宽的投影角度，以及用于明亮投影图像的宽光圈（F / 1）和足够解析625行的定义 电视图片。 透镜系统包括凹面CRT面板FP和仅两个透镜元件L1，L2，每个正功率并且每个具有一个非球面，元件的功率被选择为使得0.4K

公开(公告)号：US06462795B1

公开(公告)日：2002-10-08

申请号：US09610718

申请日：2000-07-06

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: G02B2701

CPC classification number: G02B3/0018 ,  G02B3/0043 ,  G02B3/0056 ,  G02F1/133512 ,  G02F1/133526

Abstract: A display system comprises a substantially flat matrix display panel (10), for example an LCD, a viewing screen (12) spaced from the panel and curved in one or more directions, for example to conform with the contour of a support structure (16), and an image transfer arrangement (14) comprising at least one microlens array curved in a similar sense to the screen and disposed between the panel and the screen whose individual lens elements transmit respective portions of the image on the panel onto corresponding positions on the screen. The arrangement may comprise imaging, field and re-imaging arrays (20, 21, 22) in series with corresponding lens elements in the arrays having a common optical axis.

Abstract translation: 显示系统包括基本平坦的矩阵显示面板（10），例如LCD，与面板间隔开并在一个或多个方向上弯曲的观察屏幕（12），例如以与支撑结构（16）的轮廓一致 ）和图像传送装置（14），其包括至少一个微透镜阵列，其类似于屏幕弯曲的微透镜阵列，并布置在面板和屏幕之间，其各个透镜元件将面板上图像的相应部分传送到屏幕上的相应位置 屏幕。 该布置可以包括与具有公共光轴的阵列中的相应透镜元件串联的成像，场和重新成像阵列（20,21,22）。

公开(公告)号：US5842762A

公开(公告)日：1998-12-01

申请号：US813417

申请日：1997-03-10

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: G03B33/12 ,  G02B3/00 ,  G02B3/06 ,  G02B27/00 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G09F9/00 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC classification number: G02B3/005 ,  G02B3/06 ,  G02F1/133504 ,  H04N5/74 ,  H04N5/7441 ,  H04N9/3105 ,  G02B3/0031 ,  G02F1/133526

Abstract: An image projection apparatus comprises an illumination unit (10), an image display unit (20), comprising a matrix display panel (22) having a row and column array of pixels (25), a projection lens (40) for projecting range produced by the display panel on to a screen (50) and an optical deflection unit (30) arranged between the display unit and the projection lens which is operable selectively to shift the light rays from a row of pixels passing therethrough whereby the pixel row images on the screen in one field are displaced and interlaced with the pixel row images of a preceding field. The image display unit (20) includes an array of lens elements (60) overlying the array of pixels whose effect is to reduce the height of the image of each pixel row in the projected display so the pixel row images of one field can fill the gaps between adjacent pixel row images of a preceding field without any substantial overlap and display panels having high aperture ratio can be utilised.

Abstract translation: 一种图像投影设备，包括照明单元（10），图像显示单元（20），包括具有行列和列阵列的矩阵显示面板（22），投影透镜（40） 通过显示面板连接到布置在显示单元和投影透镜之间的屏幕（50）和光学偏转单元（30），其可选择性地可操作地移动来自通过的像素行像素的光线，由此像素行图像在 一个场中的屏幕被移位并与先前场的像素行图像隔行扫描。 图像显示单元（20）包括覆盖像素阵列的透镜元件（60）的阵列，其效果是降低投影显示中每个像素行的图像的高度，使得一个场的像素行图像可以填充 可以利用前一场的相邻像素行图像之间没有任何实质重叠的间隙和具有高开口率的显示面板。

公开(公告)号：USRE34131E

公开(公告)日：1992-11-24

申请号：US639481

申请日：1991-01-09

Applicant: Leendert Vriens ,  Johannes H. M. Spruit ,  John A. Clarke

Inventor： Leendert Vriens ,  Johannes H. M. Spruit ,  John A. Clarke

IPC: H01J29/18 ,  H01J29/28

CPC classification number: H01J29/28 ,  H01J29/185

Abstract: A projection television system comprising an array of three projection television display tubes (14) luminescing in red, green and blue, a focusing lens (16) associated with each tube and a display screen (12) on which the respective optical images are merged to form a single multicolored image. At least one of the display tubes (14) has a multilayer interference filter (46) between the phosphor (30) and the faceplate (20). In order to imprve the light output at the corners of the display screen (12), the cut-off angle of the first filter layers is varied between the center and the corners thereof, for example by increasing the optical thickness of the filter layers relative to the center.

公开(公告)号：US4371151A

公开(公告)日：1983-02-01

申请号：US929977

申请日：1978-08-01

Applicant: Michael W. Gammon ,  John A. Clarke

Inventor： Michael W. Gammon ,  John A. Clarke

IPC: C22B19/08 ,  C21B7/16 ,  F27B1/16

CPC classification number: C21B7/16

Abstract: A tuyere for a blast furnace, the main body of the tuyere being in the form of a tube with a central bore and the nose portion of the tuyere having a downwardly-inclined hood-like extension of the upper wall of the tube, whereby gas passing through the nose of the tuyere is deflected downwardly by the said extension, which extension has a gas outlet aperture of greater area than the cross-sectional area of the bore of the tube.

Abstract translation: 用于高炉的风口，风口的主体为具有中心孔的管的形式，并且风口的鼻部具有管的上壁的向下倾斜的罩状延伸部，由此气体 穿过风口的鼻子被所述延伸部向下偏转，该延伸部具有比管的孔的横截面面积大的面积的气体出口孔。

公开(公告)号：US4116528A

公开(公告)日：1978-09-26

申请号：US672250

申请日：1976-03-31

Applicant: John A. Clarke

Inventor： John A. Clarke

IPC: G02B23/08 ,  G02B23/12 ,  G02B23/14 ,  G02B7/04

CPC classification number: G02B23/14 ,  G02B23/08 ,  G02B23/125

Abstract: A head-worn viewing device for alleviating night blindness includes an image intensifier tube between periscopic reflectors with an objective lens in front of the upper reflector and an eyepiece lens behind the lower reflector. The objective and upper reflector are mounted for rotation together about a pivot so that, for short viewing distances, a continuous adjustment is provided which will refocuss the objective at the front plane of the intensifier tube and compensate for the parallax of the periscopic reflectors.

Abstract translation: 用于减轻夜盲症的头戴式观察装置包括在上反射器前面具有物镜的透镜反射器和下反射器后面的目镜透镜之间的图像增强管。 物镜和上反射器被安装成围绕枢轴一起旋转，使得为了短视距，提供连续调节，其将重新聚焦在增强管的前面处的物镜并补偿透视反射器的视差。