-
公开(公告)号：US3704936A
公开(公告)日：1972-12-05
申请号：US3704936D
申请日：1970-03-09
Applicant: RCA CORP
Inventor： GORKIEWICZ WALTER JOSEPH , RAALTE JOHN A VAN
CPC classification number: H04N5/74
Abstract: Unmodulated, collimated white light is angularly directed to a target reflecting surface which is deformable to represent a subject, and the subject-modulated light reflected from the target surface is directed to a viewing screen by a schlieren optical system including a projection lens and a stop at the focal point of the lens. A prism is located adjacent the real subject-bearing target surface for rendering the apparent target surface parallel, and the light reflected therefrom orthogonal, to the principal plane of the lens and the screen; and for so reducing any color dispersion of the reflected light as to obtain adequate resolution of the image of the subject projected onto the screen.
Abstract translation: 未调制的准直白光被角度地定向到可变形以表示被摄体的目标反射表面，并且从目标表面反射的被摄体调制光通过包括投影透镜和停止的分光光学系统被引导到观察屏幕 在镜头的焦点。 棱镜位于与真实主体对象表面相邻的位置，用于使表观目标表面平行，并将其反射的光垂直于透镜和屏幕的主平面; 并且为了减少反射光的任何色散以获得投影到屏幕上的被摄体的图像的足够的分辨率。
-
公开(公告)号：US3637308A
公开(公告)日：1972-01-25
申请号：US3637308D
申请日：1970-06-11
Applicant: RCA CORP
Inventor： RAALTE JOHN A VAN , GORKIEWICZ WALTER JOSEPH
CPC classification number: G02B13/10 , G03B21/06 , H04N5/7425 , H04N9/31
Abstract: Unmodulated, collimated white light is angularly directed to a target reflecting surface which is deformable to represent a subject, and the subject-modulated light reflected from the target surface is directed to a viewing screen by a Schlieren optical system including a projection lens and a stop at the focal point of the lens. A first prism is located between the subject-bearing target surface and the lens to render the light reflected from the target surface orthogonal to the principal plane of the lens and the screen. A second prism is located between the lens and its focal point to effect a color correction of the subject-modulated light reflected from the target surface.
Abstract translation: 未调制的准直白光被角度地定向到可变形以表示被摄体的目标反射表面，并且从目标表面反射的被摄体调制光通过包括投影透镜和停止的镜头的Schlieren光学系统被引导到观察屏幕 在镜头的焦点。 第一棱镜位于被摄体承载目标表面和透镜之间，以使从目标表面反射的光垂直于透镜的主平面和屏幕。 第二棱镜位于透镜及其焦点之间，以实现从目标表面反射的被摄体调制光的颜色校正。
-
-
公开(公告)号：DE2825902A1
公开(公告)日：1978-12-21
申请号：DE2825902
申请日：1978-06-13
Applicant: RCA CORP
Inventor： RAALTE JOHN A VAN
Abstract: Across the screen is a mosaic of spaced phosphor bodies which emit light of different colors when excited by electrons. Phosphors which emit three different colors, e.g. red, green and blue, are used and are disposed in a regular repetitive array of groups of three, i.e. triads. In every other triad the phosphor body which emits the color which has the least acuity to the eye, e.g. blue, is replaced by a nonluminescent black material. The blue phosphor bodies are of a width substantially equal to the width of the penumbra of the electron beam which impinges on the blue phosphor bodies. The red and green emitting phosphor bodies are of a width substantially equal to the umbra of their corresponding electron beams which is about one-half the penumbra of the beams. The phosphor bodies are spaced apart such that the portions of the red and green impinging electron beams which do not impinge on their respective phosphor bodies impinge on nonluminescent spaces between the phosphor bodies and the center-to-center distances between adjacent phosphor bodies of like color are equal across the screen.
-
公开(公告)号：AU7682674A
公开(公告)日：1976-06-24
申请号：AU7682674
申请日：1974-12-24
Applicant: RCA CORP
Inventor： RAALTE JOHN A VAN , GOODMAN LAWRENCE ALAN
Abstract: 1448528 Matrix displays RCA CORPORATION 19 Dec 1974 [2 Jan 1974] 54888/74 Heading G5C [Also in Divisions H3-H5] A liquid crystal device with rectifying electrical characteristics comprises liquid crystal material between two electrodes and a layer of semiconductor material disposed between, and in physical and electrical contact with, one of the electrodes and the liquid crystal material. Particularly described in a coincidence addressed X-Y matrix display device, in which the rectifying characteristics reduce cross-talk and in which the semiconductor and/or liquid crystal layers may be continuous or physically separated into elements corresponding to the electrode intersections. The electrodes may comprise a plurality of figure of eight arrays for use in a watch. The device is believed to be similar to a barrier diode, with the semiconductor layer being in ohmic contact with the electrode and in rectifying contact with the liquid crystal material. The semiconductor material is preferably transparent, with a bulk resistivity of less than 10 6 ohm-cm., and insensitive to light (band-gap greater than 2À5 eV.), for example, zinc sulphide or sputtered zinc oxide. The forward and reverse resistances of the diode should have a ratio of at least 1 : 100 or more and should fall on either side of the resistance of the liquid crystal material. If the liquid crystal material contains dopants, the redox potentials thereof should be related to the termi levels of the semiconductor material, e.g. an organic bromide for a termi level of 4-5 eV. By selection of suitable semi-conductor material, the device may be addressable electrically and optically.
-
Patent Agency Ranking
公开(公告)号：DE2613843A1
公开(公告)日：1976-10-14
申请号：DE2613843
申请日：1976-03-31
Applicant: RCA CORP
IPC: G03G5/08 , H01J29/45 , H01L31/00 , H01L31/0248 , H01L31/0264 , H01L31/08
Abstract: A low dark current photoconductive body includes an aluminum oxide overlayer on a cadmium selenide base layer. A transition region is provided at the interface region between the base layer and the overlayer and consists of a graded transition of cadmium and selenium with increasing amounts of aluminum and oxygen. An alternative body is disclosed omitting the overlayer. A blocking contact is provided within a portion of the body including the overlayer and/or the transition region.
-
公开(公告)号：DE2460916A1
公开(公告)日：1975-07-10
申请号：DE2460916
申请日：1974-12-21
Applicant: RCA CORP
Inventor： RAALTE JOHN A VAN , GOODMAN LAWRENCE ALAN
Abstract: 1448528 Matrix displays RCA CORPORATION 19 Dec 1974 [2 Jan 1974] 54888/74 Heading G5C [Also in Divisions H3-H5] A liquid crystal device with rectifying electrical characteristics comprises liquid crystal material between two electrodes and a layer of semiconductor material disposed between, and in physical and electrical contact with, one of the electrodes and the liquid crystal material. Particularly described in a coincidence addressed X-Y matrix display device, in which the rectifying characteristics reduce cross-talk and in which the semiconductor and/or liquid crystal layers may be continuous or physically separated into elements corresponding to the electrode intersections. The electrodes may comprise a plurality of figure of eight arrays for use in a watch. The device is believed to be similar to a barrier diode, with the semiconductor layer being in ohmic contact with the electrode and in rectifying contact with the liquid crystal material. The semiconductor material is preferably transparent, with a bulk resistivity of less than 10 6 ohm-cm., and insensitive to light (band-gap greater than 2À5 eV.), for example, zinc sulphide or sputtered zinc oxide. The forward and reverse resistances of the diode should have a ratio of at least 1 : 100 or more and should fall on either side of the resistance of the liquid crystal material. If the liquid crystal material contains dopants, the redox potentials thereof should be related to the termi levels of the semiconductor material, e.g. an organic bromide for a termi level of 4-5 eV. By selection of suitable semi-conductor material, the device may be addressable electrically and optically.
-
-
公开(公告)号：DE2714150A1
公开(公告)日：1977-10-13
申请号：DE2714150
申请日：1977-03-30
Applicant: RCA CORP
Inventor： ENDRIZ JOHN GUIRY , RAJCHMAN JAN ALEKSANDER , RAALTE JOHN A VAN
-
公开(公告)号：DE2653623A1
公开(公告)日：1977-06-08
申请号：DE2653623
申请日：1976-11-25
Applicant: RCA CORP
Inventor： RAALTE JOHN A VAN
Abstract: A plurality of parallel, planar, area electron multipliers are mounted on a substrate having a plurality of electrical conductors in a coded pattern and a planar electron source thereon. Each multiplier comprises a plurality of dynode members, at least one of which is addressable, for controlling the generation of a linear electron beam which defines one video line in a flat image display device. Random or sequential generation of video lines is accomplished by generating unique combinations of electron repelling and accelerating voltages which are applied to the addressable dynode members through the coded electron conductors.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.02 seconds)
