Sight apparatus for firearms
First Claim
1. Sight apparatus for aiming a firearm at a remote target within a region exhibiting given ambient brightness, said firearm having a barrel extending along a central axis substantially from and parallel with a shooter'"'"'s eye position to a forwardly disposed tip, comprising:
- a sight housing mountable in the vicinity of said barrel tip, having an internally disposed chamber, and extending along a sight axis parallel with said central axis toward said eye position to a light exit aperture symmetrically disposed about said sight axis, of select principal cross sectional dimension, said housing having a curved upward surface extending to an opaque edge region of predetermined dimension surmounting said exit aperture said upward surface and said edge region providing a sight silhouette to said eye position;
an emitter of light in the visual spectrum mounted within said sight housing chamber in an orientation for emitting light along and symmetrically about said sight axis, electrically energizable to generate a light output of predetermined brightness intensity in the visible spectrum, visually perceivable at said shooter eye position only as it is emitted through said exit aperture; and
said exit aperture principal cross sectional dimension and said emitter predetermined brightness intensity being selected having a respective value and intensity level effective to evoke brightness contour by physiological lateral inhibition with respect to said ambient brightness at said shooter'"'"'s eye when focused upon said remote target.
2 Assignments
0 Petitions
Accused Products
Abstract
A sight apparatus is formed of a small housing having a curved top and an internally disposed chamber which is intended to be positioned generally at the location of a normal front sight as used with firearms intended for shooting remote targets. The housing incorporates a switchable light emitter such as an LED of substantial brightness which is positioned adjacent a small collimation portion and exit aperture pointed parallel with the gun barrel axis toward the shooter'"'"'s eye station. The brightness of this emitter output is selected with respect to the brightness of the ambient suround about the target so as to achieve enhanced brightness contour via physiological lateral inhibition within the shooter'"'"'s eye. There then results a sharp sighting image which represents gun tip positional data to the shooter. This data is available to the shooter even though both eyes are focused at the remote field of the target, generally at infinity, and defocused at the tip of the gun barrel.
42 Citations
23 Claims
-
1. Sight apparatus for aiming a firearm at a remote target within a region exhibiting given ambient brightness, said firearm having a barrel extending along a central axis substantially from and parallel with a shooter'"'"'s eye position to a forwardly disposed tip, comprising:
-
a sight housing mountable in the vicinity of said barrel tip, having an internally disposed chamber, and extending along a sight axis parallel with said central axis toward said eye position to a light exit aperture symmetrically disposed about said sight axis, of select principal cross sectional dimension, said housing having a curved upward surface extending to an opaque edge region of predetermined dimension surmounting said exit aperture said upward surface and said edge region providing a sight silhouette to said eye position; an emitter of light in the visual spectrum mounted within said sight housing chamber in an orientation for emitting light along and symmetrically about said sight axis, electrically energizable to generate a light output of predetermined brightness intensity in the visible spectrum, visually perceivable at said shooter eye position only as it is emitted through said exit aperture; and said exit aperture principal cross sectional dimension and said emitter predetermined brightness intensity being selected having a respective value and intensity level effective to evoke brightness contour by physiological lateral inhibition with respect to said ambient brightness at said shooter'"'"'s eye when focused upon said remote target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. Sight apparatus for aiming a firearm at a target within a remote region, said firearm having a barrel extending along a central axis substantially from and parallel with a shooter'"'"'s eye position to a forward tip, comprising:
-
an elongate sight housing having a bottom surface configured for connection with said barrel in the vicinity of said tip and having an upward surface of cylindrical shape and corresponding cross-section defining a sight profile, having an internally disposed chamber extending along a sight axis parallel with said central axis when said bottom surface is connected with said barrel, said housing having a light exit aperture symmetrically disposed about said sight axis, communicating with said chamber, of select principal cross-sectional dimension and located to confront said eye position along said sight axis and an opaque edge region of predetermined dimension surmounting said exit aperture, and a collimation portion extending inwardly from said exit aperture a select lengthwise extent; a light emitting diode positioned within said sight housing chamber in an orientation for emitting light in the visible spectrum through said exit aperture along said sight axis toward said shooter eye position, said diode exhibiting a minimum luminance value of about 35 millicandellas (mcd) and a typical output of about 65 mcd at an excitation of about 20 mA; an elongate, cylindrically shaped battery positioned within said chamber; a switch assembly actuable to electrically couple said diode and said battery, positioned within said chamber between said battery and said light emitting diode; and actuator means coupled with said housing for actuating said switch assembly. - View Dependent Claims (18, 19, 20, 21)
-
-
22. Sight apparatus for aiming a firearm at a target within a remote region, said firearm having a barrel extending along a central axis to a forward tip and substantially parallel with a sight axis extending to a shooter'"'"'s eye position, comprising:
-
an elongate sight housing having a bottom surface configured for connection with said barrel in the vicinity of said tip and having an upward surface of a selectively shaped cross-section defining a forward sight profile, having an internally disposed chamber extending along said sight axis when said housing is mounted upon said barrel, said housing having a light exit aperture of select diameter communicating with said chamber and located to confront said eye position along said sight axis, and a collimation portion extending inwardly from said exit aperture a select lengthwise extent; a light emitting device positioned within said chamber in an orientation for providing a light output in the visible spectrum, when energized, along said collimation portion and through said exit aperture along said sight axis toward said shooter; an elongate battery positioned within said chamber; switching means mounted upon said housing for effecting the energization of said light emitting device by said battery; and a sight blocking assembly mountable with said barrel adjacent said sight housing, extending substantially parallel with said sight axis from said exit aperture toward said eye position and configured for restricting the view of said light output only to perception by the eye of said shooter at said shooter'"'"'s eye position, so as to block vision of said light output by a dominant eye of said shooter not aligned with said sight axis. - View Dependent Claims (23)
-
Specification