Cathode ray tube mounting means including lighting means and...

Details Cathode ray tube mounting means including lighting means and... Cathode ray tube mounting means including lighting means and...

H - Electricity

01

J

240/98

H01J 29/89 (2006.01)

Patent

CA 1092573

CATHODE RAY TUBE MOUNTING MEANS INCLUDING LIGHTING MEANS AND CAMERA-CONNECTING MEANS Abstract of the Disclosure The present invention relates to a lighting unit for illuminating internal graticule lines on a surface of a cathode ray tube faceplate. The unit is comprised of a front casting including a mounting for removably mounting a cathode ray tube thereon, a bezel surrounding the cathode ray tube faceplate and being mounted on the front costing, and a light guide extending along an edge of the faceplate and having spaced openings therein. A securing unit is provided for securing the light guide onto the bezel in alignment with the spaced openings. A light bulb is disposed in the holes and spaced openings. Conductors are provided on the securing unit, electrically engaging respective terminals of the light bulb. A source of electrical potential is provided, connected to the conductors for energizing the light bulb.

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