Cathode ray tube mounting means including lighting means and camera-connecting means

• US 4,063,289 A
• Filed: 11/18/1976
• Issued: 12/13/1977
• Est. Priority Date: 11/18/1976
• Status: Expired due to Term

• Current Assignee: Tektronix Incorporated (Fortive Corp.)
• Original Assignee: Tektronix Incorporated (Fortive Corp.)
• Inventors: Veenendaal, Cornelis Teunis
• Primary Examiner(s): Griffin, Robert L.
• Assistant Examiner(s): Coles, Edward L.
• Application Number:
  US05/743,017
• Time in Patent Office: 390 Days
• Field of Search: 358/245, 358/246, 358/247, 358/248, 358/249, 358/250, 358/254, 358/255, 358/242, 313/462
• US Class Current: 348/836
• CPC Class Codes: G01R 13/204 Using means for generating permanent registrations, e.g. photographs optical or photographic arrangements combined with CRT vessel H01J29/89
• CPC Class Codes: H01J 2229/8901 Fixing of optical components to the vessel
• CPC Class Codes: H01J 2229/8926 Active components, e.g. LCD's, indicators, illuminators and moving devices
• CPC Class Codes: H01J 29/89 Optical or photographic arrangements structurally combined or co-operating with the vessel H01J29/866 and H01J29/868 take precedence

Abstract

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.

Claims

1. A cathode ray tube mounting means for mounting a cathode ray tube having projection means thereon in position in an electronic cabinet, comprising:

a front casting having an opening therethrough and through which the cathode ray tube is moved;

guide means provided by said front casting adjacent said opening;

movable means movably disposed in said guide means for matable engagement with the projection means when the cathode ray tube is moved through said opening;

bezel means having implosion shield means therein securable onto said front casting; and

means provided by said movable means and engageable through said bezel means to move said movable means along said guide means thereby moving a faceplate of the cathode ray tube against said implosion shield means.

2. A cathode ray tube mounting means according to claim 1 wherein the projections on the cathode ray tube are wedge-shaped and said movable means have inner surfaces defining a wedge configuration.

3. A cathode ray tube mounting means according to claim 1 wherein lighting means is mounted on said bezel means for disposition against an edge of the cathode ray tube faceplate to illuminate a graticule scale provided on the faceplate.

4. A cathode ray tube mounting means according to claim 3 wherein said lighting means includes a light guide having light bulb means removably mounted therein which are replaceable from the front of the cabinet.

5. Lighting means for illuminating internal graticule lines on a surface of a cathode ray tube faceplate comprising:

front casting means including mounting means for removably mounting a cathode ray tube thereon;

bezel means surrounding the cathode ray tube faceplate and being mounted on said front casting means;

light guide means extending along an edge of the faceplate and having spaced openings therein;

means securing said light guide means onto said bezel means and including holes therethrough and through said bezel means in alignment with said spaced openings respectively;

light bulb means disposed in said holes and spaced openings;

conductive means provided on said securing means electrically engaging respective terminals of said light bulb means; and

means connected to said conductive means for providing electrical potential thereto to energize said light bulb means.

6. Light means according to claim 5 whereas said conductive means includes contact means pivotally mounted on said securing means for electrical engagement with inner terminals of said light bulb means to maintain said light bulb means in position in said spaced openings and to maintain outer terminals of said light bulb means in electrical engagement with conductive path means provided by said securing means, said pivotal contact means permitting easy replacement of said light bulb means.

7. Lighting means according to claim 5 wherein arcuate-shaped depressions are provided in upper edges of said light guide means in alignment with said spaced openings to restrict the area through which the light from said light bulb means is transmitted into the faceplate.

8. Lighting means according to claim 5 wherein reflective means is disposed along a bottom surface of said light guide means.