×

Arrangement of a sighting mark and a light-producing source of energy therefor

  • US 4,743,765 A
  • Filed: 07/10/1987
  • Issued: 05/10/1988
  • Est. Priority Date: 09/19/1984
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a telescopic sighting tube, a luminous sighting arrangement, comprising a reflective sighting mark mounted within said sighting tube and substantially centered on a longitudinal axis of said sighting tube, and at least one light-producing source in the form of a capsule enclosing a β

  • -ray producing substance β

    -ray to light connecting substance, said capsule being mounted in said sighting tube at a point on a circle centered on said longitudinal axis of said sighting tube, at a radial distance of at least 1r from said longitudinal axis and at an axial distance of between 1r and 2r from a plane perpendicular to said longitudinal axis and passing through the center of said sighting mark, where r is the radius from the center of said sighting mark to the periphery of a light opening in the sighting tube at the level of said plane, with means being provided for directing light from said capsule to said sighting mark, said sighting mark reflecting light produced by said capsule and thereby appearing luminous within said sighting tube.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×