US12392579 - Constant intensity light regulating firearm sight device

The patent describes a firearm sight device that features a light source and a light sensor, allowing for real-time adjustment of the brightness of an aim point based on ambient light conditions. The controller within the device utilizes a stored brightness adjustment formula to ensure consistent visibility of the aim point for the user.

Claim 1

1. A sight device for a firearm, said sight device comprising: a main body that is configured to be mounted onto the firearm; 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, said light sensor functioning to capture an ambient light lux value in real time; and a controller that is positioned within the main body, said controller being in communication with each of the light source and the light sensor, and including a controller memory that stores a brightness adjustment formula, wherein the light source is configured to emit an aim point onto a first surface of the lens, and wherein the controller is configured to selectively and continuously change a brightness level of the emitted aim point based on an output of the brightness adjustment formula utilizing the real time received ambient 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, and the stored 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. a main body that is configured to be mounted onto the firearm; 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, said light sensor functioning to capture an ambient light lux value in real time; and a controller that is positioned within the main body, said controller being in communication with each of the light source and the light sensor, and including a controller memory that stores a brightness adjustment formula, wherein the light source is configured to emit an aim point onto a first surface of the lens, and wherein the controller is configured to selectively and continuously change a brightness level of the emitted aim point based on an output of the brightness adjustment formula utilizing the real time received ambient 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, and the stored 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/US12392579

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12392579