US12429305 - Constant intensity light regulating firearm sight device

The patent describes a firearm sight device that features a light source, light sensor, and controller to adjust the brightness of an aim point based on ambient light conditions, ensuring consistent visibility for the user. The controller utilizes a brightness adjustment formula to modify the output power of a light-emitting diode, allowing for user-defined brightness settings.

Claim 1

1. A method, comprising: providing a sight device for a firearm having a main body, a lens that is positioned along the main body, a light source that is positioned along the main body, a light sensor that is positioned along the main body, a controller that is positioned within the main body, and a controller memory that stores a brightness adjustment formula; emitting, via the light source, an aim point onto a first surface of the lens; receiving, via a user interface, an instruction to change the emitted aim point from a default brightness level to a custom brightness level; receiving, via the light sensor, an ambient light lux value; and continuously changing the custom brightness level of the aim point based on an output of the brightness adjustment formula utilizing the received ambient light lux value to provide a consistent brightness to a human eye viewing the aim point, wherein the controller changes an output power of a light emitting diode to change the brightness level of the aim point based on the brightness adjustment formula, wherein the brightness adjustment formula comprises: LED Power=(3.16) n [( m )((lux)/(MAX n ))+( b )+/−((α)(β))] wherein n represents a Lux Segment Number; m represents a System Brightness slope Constant; lux represents Target Ambient Light Data, in Lux; MAXn represents a Maximum Lux Value for the Lux segment Number n; b represents a System Brightness Intercept Constant; α represents a User brightness Offset Constant; and β represents a User Brightness Control level. providing a sight device for a firearm having a main body, a lens that is positioned along the main body, a light source that is positioned along the main body, a light sensor that is positioned along the main body, a controller that is positioned within the main body, and a controller memory that stores a brightness adjustment formula; emitting, via the light source, an aim point onto a first surface of the lens; receiving, via a user interface, an instruction to change the emitted aim point from a default brightness level to a custom brightness level; receiving, via the light sensor, an ambient light lux value; and continuously changing the custom brightness level of the aim point based on an output of the brightness adjustment formula utilizing the received ambient light lux value to provide a consistent brightness to a human eye viewing the aim point, wherein the controller changes an output power of a light emitting diode to change the brightness level of the aim point based on the brightness adjustment formula, wherein the brightness adjustment formula comprises: LED Power=(3.16) n [( m )((lux)/(MAX n ))+( b )+/−((α)(β))] LED Power=(3.16) n [( m )((lux)/(MAX n ))+( b )+/−((α)*(β))] wherein n represents a Lux Segment Number; m represents a System Brightness slope Constant; lux represents Target Ambient Light Data, in Lux; MAXn represents a Maximum Lux Value for the Lux segment Number n; b represents a System Brightness Intercept Constant; α represents a User brightness Offset Constant; and β represents a User Brightness Control level.

Google Patents

https://patents.google.com/patent/US12429305

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12429305