Sep 22, 2026

US12742613 - Apparatus and methods for an optical reflection gunsight

An apparatus and methods are provided for a gunsight and sighting system for use on firearms. The gunsight and sighting system comprises a mount portion coupled with a hood portion. A projection window with a collimated image overlay is secured to the mount portion by the hood portion. A front sight dot is forward of the projection window, while two rear sight dots are rearward of the mount portion. The sight dots may be illuminated by any of various desirable colors to enhance visibility in various lighting conditions. Light sensors disposed at the front of the mount portion detect ambient light and/or light in a target area and accordingly adjust the illumination of the sight dots. The light sensors may be disposed in asymmetric locations of the mounting portion to overcome interference due to light arriving at angles other than in front of the gunsight and sighting system.

Assignee: Surefire, LLC
Inventors: Ammar Burayez
Filing date: 2024-11-15

firearmgunsightsightingoptical

The patent describes an advanced optical reflection gunsight designed for firearms, featuring a projection window that overlays a collimated reticle image onto the target view. It includes light sensors to adjust the illumination of sight dots based on ambient lighting, enhancing visibility in various conditions.

Claim 1

1 . A projection window for gunsight and sighting system, comprising: a generally cubic member having a front surface for receiving light from a target area; an exit surface for enabling an observer to view the target area; a Cassegrain portion for overlaying a collimated image of a reticle onto the view of the target area; and a spacer portion mated with the Cassegrain portion to form the cubic member wherein the projection window includes a front surface and an exit surface opposite of the front surface; wherein the Cassegrain portion and the spacer portion comprise optically clear materials capable of directing a light path from a light source to the observer; and wherein the projection window is formed of acrylic such that the reticle is not visible by way of the front surface. a generally cubic member having a front surface for receiving light from a target area; an exit surface for enabling an observer to view the target area; a Cassegrain portion for overlaying a collimated image of a reticle onto the view of the target area; and a spacer portion mated with the Cassegrain portion to form the cubic member wherein the projection window includes a front surface and an exit surface opposite of the front surface; wherein the Cassegrain portion and the spacer portion comprise optically clear materials capable of directing a light path from a light source to the observer; and wherein the projection window is formed of acrylic such that the reticle is not visible by way of the front surface.

Google Patents

https://patents.google.com/patent/US12742613

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12742613