摘要:
A radiation containment apparatus comprising a source of radiation having an area from which radiation is emitted, and a vinyl polymer sheet generally arranged about the area from which radiation is emitted in a manner so as to receive the radiation. The source of radiation is a cathode ray tube. The vinyl polymer sheet is a clear sheet of polyvinyl chloride. An enclosure made up of polyvinyl chloride sheets generally surround the source of radiation. A plurality of fasteners are arranged about the periphery of the cathode ray tube so as to receive the polyvinyl chloride sheet. The polyvinyl chloride sheet also includes notches about the outer edges for engaging the fasteners on the cathode ray tube.
摘要:
A mounting device for mounting an optical panel on the front side of a housing which contains means having an illuminated display area and a bezel on its front side that frames the display area, the bezel having holes located in spaced regions, the device comprising a body having front and rear sides, means carried by the body and projecting from the rear side of the same dimension to be received in one of said holes and to be retained therein, and means for removably attaching the contiguous surface of an applied panel to the front side of the body.
摘要:
For improving the contrast of information displayed on the screen, there is placed in front of this latter a filter comprising a matrix of channels pierced in a photosensitive glass plate. The pierced plate is covered over the whole of its surface with a blackened deposit so as to reduce to the maximum its coefficient of reflection. Thus filters can be formed readily on request, according to the direction of observation in particular, with a good coefficient of transmission and improved contrast.
摘要:
An integral lens cathode ray tube system includes a cathode ray tube having an electron gun for providing a visual display on a substantially spherical-shaped viewing portion and a glass panel affixed to the viewing portion by a resin disposed therebetween and optically matched to the glass panel and viewing portion of the cathode ray tube.
摘要:
A cathode ray tube mounting means includes a front panel member having an opening through which a cathode ray tube is passed, and it has projections on its funnel section that mate with wedging members movably mounted in the panel member. A bezel having an implosion shield means therein is secured onto the front panel member and the wedging members are secured into position thereby moving the faceplate of the cathode ray tube into tight engagement with the implosion shield means. Lighting means is disposed between the front panel member and the bezel adjacent the faceplate to effectively light the graticule scale of the cathode ray tube screen and to permit easy replacement of light bulbs. A connecting means is also provided for electrically connecting a camera to the circuitry within the electronic instrument containing the cathode ray tube.
摘要:
An image display device having an image transmissive faceplate with an exterior surface spaced from a light filtering layer of uniform thickness on a protective transparent panel by an encircling sealed gasket to form an interposed cavity which is filled with image transmissive bonding material. A method comprising the steps of (1) casting an annular gasket in encircling sealed relationship with an implosion panel, (2) depositing within the annular gasket and on the encircled panel a uniform thickness layer of light-filtering material, (3) sealing the gasket to an outer marginal portion of a display tube faceplate to form a cavity between the faceplate and the layer of light-filtering material on the implosion panel, and (4) filling the cavity with light transmissive bonding material.
摘要:
A shielded clear glass cathode substrate (44) is provided for use in an image intensifier tube of the type utilizing a clear glass cathode substrate (46). A black glass cathode substrate shield (48) is coextensive with the entire longitudinal surface of the clear glass cathode substrate (46). The black glass forming the black glass cathode substrate shield (48) has an index of refraction that is greater than the index of refraction of the clear glass utilized in the clear glass cathode substrate (46). A method is provided for producing a shielded glass cathode substrate from a mass of clear glass (52).
摘要:
Embodiments of an apparatus and design principles for its operation have been devised such that when these embodiments are placed at the screen of a television set (preferably color) or at a movie screen or at an appropriate photograph, a highly noticeable observation of depth is produced. This is done without apparatus at the eyes and without using multiple images as in stereoscopy.