Transparent rear bow sights

Abstract

A series of transparent rear bow sights having fiber optic of various configurations for adding to the bowstring having preferably at least four strands. The bowstring can be undivided or divided up to four strand groups for attachment of the bow sight. A battery can be attached to the bowstring with its cord acting as a guide equivalent to a rubber cord guide. The simplest form of a rear bow sight has a dark colored opaque base including a plastic fiber optic pin containing tritium and supporting an inclined or perpendicularly oriented circular apertured and transparent sight window with external notches for embedding the individual or grouped strands of the drawstring. Other embodiments include various arrangements of the colored fiber optic as a U-shaped tube, a singular straight tube, two parallel straight tubes, and a combination of a straight tube intersecting the U-shaped tube portion and parallel to its legs. A modification of an optic sight tube has a portion coiled on a post emerging from the base at more than one angle.

I claim:  
     
         1 . A transparent rear bow sight system for a bow having a multiple stranded bowstring and a forward sight pin comprising: 
 a rear bow sight device comprising: 
 a planar opaque base;  
 a transparent housing positioned on and integral with said base;  
 at least one colored transparent fiber optic pin embedded and inclined in said transparent housing; and  
 a circular transparent sight window having a plurality of peripheral spaced notches and a central aperture positioned on said base;  
   whereby the rear bow sight device with its at least one fiber optic pin is held by strands of the bowstring in the notches of the sight window, and the rear bow sight device is aligned with the forward sight pin when the bowstring is drawn full for accuracy in dim light conditions.    
     
     
         2 . The transparent rear bow sight system according to  claim 1 , including a post extending from said base.  
     
     
         3 . The transparent rear bow sight system according to  claim 2 , including a hollow rubber tubing having its ends attached to the post and to the bow.  
     
     
         4 . The transparent rear bow sight system according to  claim 1 , including a battery in a holder attached to the bow, and a coiled electrical cord extending from the battery attached electrically to the at least one colored transparent fiber optic pin in the transparent rear bow sight.  
     
     
         5 . The transparent rear bow sight system according to  claim 4 , including an on/off switch electrically connected to the battery and selected from the group consisting of a slide switch, a rotary switch and a rocker switch for minimizing noise when energizing the colored optic pin.  
     
     
         6 . The transparent rear bow sight system according to  claim 1 , wherein the at least one fiber optic pin comprises a U-shaped pin.  
     
     
         7 . The transparent rear bow sight system according to  claim 6 , further comprising a straight fiber optic pin intersecting and parallel to said U-shaped pin.  
     
     
         8 . The transparent rear bow sight system according to  claim 1 , wherein the at least one fiber optic pin includes two parallel straight pins so that the sight pin may be centered between the parallel pins when aiming.  
     
     
         9 . The transparent rear bow sight system according to  claim 1 , wherein the at least one fiber optic pin includes three parallel straight pins.  
     
     
         10 . The transparent rear bow sight system according to  claim 1 , wherein the sight window is positioned at one end of the base and inclined away from said base at an angle approximately 110°.  
     
     
         11 . The transparent rear bow sight system according to  claim 1 , wherein the sight window is positioned at one end of the base at an angle of 90°.  
     
     
         12 . The transparent rear bow sight system according to  claim 1 , wherein the plurality of peripheral spaced notches in said sight window consists of at least two but fewer than five notches.  
     
     
         13 . The transparent rear bow sight system according to  claim 1 , wherein the at least one fiber optic pin contains tritium.  
     
     
         14 . The transparent rear bow sight system according to  claim 1 , further comprising an opaque T-shaped support attached to said base, the at least one fiber optic pin and housing being mounted in the T-shaped support.  
     
     
         15 . The transparent rear bow sight system according to  claim 14 , wherein said base has a post attached at an angle to said base and parallel to the T-shaped support.  
     
     
         16 . The transparent rear bow sight system according to  claim 15 , wherein the base has a longitudinal groove in its bottom surface.  
     
     
         17 . The transparent rear bow sight system according to  claim 16 , wherein said base has up to two clamp bars.  
     
     
         18 . The transparent rear bow sight system according to  claim 1 , wherein said plurality of peripheral notches of said sight window includes two intersecting notches.  
     
     
         19 . The transparent rear bow sight system according to  claim 1 , wherein a post extends axially from one end of the base, one end of the at least one fiber optic pin being coiled around the post, and wherein the sight window is inclined at an opposite end of the base away from the post.  
     
     
         20 . The transparent rear bow sight system according to  claim 1 , wherein a post extends at an acute angle from one end of the base, one end of the at least one fiber optic pin being coiled around the post, and wherein the sight window is positioned perpendicular to the base.