Abstract: The invention provides a multiplicity of light sources—such as a planar array of LEDs—and a corresponding multiplicity of primary optic lenses, the primary optic lenses being curved and positioned to narrow a source light beam emitted from each of the light sources, and a beam shaper—which could be a beam shaping micro-refractive film or films, or a segmented refractor lens with multiple facets—that is shaped and positioned to receive a light source distribution emitted from the multiplicity of primary optic lenses and to emit an output light path having an angle of distribution different than a corresponding angle of the light source distribution.

Abstract: An active infra-red surveillance illuminator uses a statistically mono-directional micro-diffractive material overlaid on a bank of light emitting diodes (LEDs) to refract light from the LEDs onto a target image. This delivers energy distribution profiles out to a distance to match the aspect ratios of current wide-angle target and wide-angle camera surveillance systems. The distribution of refracted light is elliptical. This distribution can vary by using different diffractive material in conjunction with various numbers, brightness and angles of the LEDs in an LED bank. The effective range of the illuminators is greatly extended with this type of illumination. By limiting infrared (IR) radiation down to a 10 degree vertical window it renders the IR illumination much more effective for surveillance imaging by providing much more effective power on wide, ground-level scenes, and particularly enables multi-lane license plate capture.

Abstract: The invention provides a multiplicity of light sources—such as a planar array of LEDs—and a corresponding multiplicity of primary optic lenses, the primary optic lenses being curved and positioned to narrow a source light beam emitted from each of the light sources, and a beam shaper—which could be a beam shaping micro-refractive film or films, or a segmented refractor lens with multiple facets—that is shaped and positioned to receive a light source distribution emitted from the multiplicity of primary optic lenses and to emit an output light path having an angle of distribution different than a corresponding angle of the light source distribution.

Abstract: The present invention is an illuminator for CCTV surveillance and security applications that maintains constant optical output from an array of LEDs by employing output compensation, feedback and enhancement. This constant optical output illuminator system enables reliable long-duration low-light imaging and data capture for surveillance and security applications, via an array of LEDs, LED power supply circuitry, and output feedback and compensation circuitry in which a photodetector circuit provides a voltage signal proportional to an amount of light falling on a photosensor and the voltage signal is fed to a drive control circuit for electrical current to the LEDs to achieve a desired optical output as measured by a photosensor voltage setpoint across the photodetector circuit.

Abstract: This invention provides a surveillance camera-housing system that dissipates heat from components mounted to heatsink brackets having flanges that press against inner walls of a camera housing. This ensures high thermal conductivity from the heat generating LED and electronics circuit boards and provides an easy assembly and self-locking mechanism for multiple boards on which are mounted components such as illuminators and power supplies requiring heatsinks, allows for easy optical alignment of LED and cameras, and is suitable for use in rugged and vehicle mounted environments.

Abstract: The present invention is an illuminator for CCTV surveillance and security applications that maintains constant optical output from an array of LEDs by employing output compensation, feedback and enhancement. This constant optical output illuminator system enables reliable long-duration low-light imaging and data capture for surveillance and security applications, via an array of LEDs, LED power supply circuitry, and output feedback and compensation circuitry in which a photodetector circuit provides a voltage signal proportional to an amount of light falling on a photosensor and the voltage signal is fed to a drive control circuit for electrical current to the LEDs to achieve a desired optical output as measured by a photosensor voltage setpoint across the photodetector circuit.

Abstract: An active infra-red surveillance illuminator uses a statistically mono-directional micro-diffractive material overlaid on a bank of light emitting diodes (LEDs) to refract light from the LEDs onto a target image. This delivers energy distribution profiles out to a distance to match the aspect ratios of current wide-angle target and wide-angle camera surveillance systems. The distribution of refracted light is elliptical. This distribution can vary by using different diffractive material in conjunction with various numbers, brightness and angles of the LEDs in an LED bank. The effective range of the illuminators is greatly extended with this type of illumination. By limiting infrared (IR) radiation down to a 10 degree vertical window it renders the IR illumination much more effective for surveillance imaging by providing much more effective power on wide, ground-level scenes, and particularly enables multi-lane license plate capture.