Title:
SIGHT MARK AND APPARATUS SERVING AS LIGHT GENERATION SOURCE FOR SUPPLYING ENERGY THERETO
Document Type and Number:
Japanese Patent JPS61124916
Kind Code:
A
Abstract:
The invention relates to an arrangement of a sighting mark (2) and a light-producing source of energy (3) therefor in an optical sighting instrument, especially a telescopic sighting tube. The invention is characterised in that at least one light-emitting capsule (3f), preferably at least one β-ray transmissive capsule enclosing a β-ray producing substance, is mounted in the telescopic sighting tube at a point on a circle which is centered on the longitudinal axis of the sighting instrument and disposed at an axial distance of between about 0 and 2 r counted from a plane which is perpendicular to said axis and passes through the centre of the sighting mark (2f), the distance to said centre not exceeding 2 r, where r is the radius from said centre to the periphery of the light opening in the sighting tube (12) at the level of said plane; said capsule (3f), whether it is mounted spaced from or in said plane, being positioned and directed to send at least a substantial proportion of the radiation from the capsule onto the slighting mark to make the latter luminous.
Inventors:
JIYON ARUNE INGEMUNDO EKUSUTOR
Application Number:
JP20618685A
Publication Date:
June 12, 1986
Filing Date:
September 18, 1985
Export Citation:
Assignee:
INTAAEIMUZU AB
International Classes:
G02B23/14; G02B27/34; F41G1/34; (IPC1-7): F41G1/34; G02B23/14
Attorney, Agent or Firm:
Hideto Asamura