Bow sight with projected reticle aiming spot

Details Bow sight with projected reticle aiming spot Bow sight with projected reticle aiming spot

1990-08-15

1992-02-25

Evans, F. L.

Optics: measuring and testing

Fiducial instruments

Reticle lies outside viewing path

33241, 33265, 356252, 124 87, 42100, G02D 2310

Patent

active

050908057

ABSTRACT:
A bow sight apparatus is described with at least one lighted reticle aiming spot which is projected onto a partially reflecting mirror through which the target is viewed to superimpose the aiming spot on the target image. A light guide of fluorescent plastic is employed to convert ambient visible light entering such light guide into colored light of a selected wavelength, such as green light, which is transmitted through one or more aiming apertures in a reticle member to produce the aiming spot. Range adjustment is provided by moving a reticle projection mirror to adjust the position of the aiming spot between different precalibrated range positions, or by providing several different aiming spots corresponding to different target ranges. A bow mount attaches the sight to a bow handle by a bracket which adjusts the sight vertically and horizontally for calibration sighting of the sight. A battery operated auxiliary light, such as a switch actuated light emitting diode, may be mounted on the light guide to direct additional colored light into it.

REFERENCES:
patent: 3645635 (1972-02-01), Steck
patent: 3700339 (1972-10-01), Steck
patent: 3813790 (1974-06-01), Kaltmann
patent: 3897158 (1975-07-01), Steck
patent: 3991500 (1976-11-01), Kershner et al.
patent: 3994597 (1976-11-01), Calder et al.

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