IR illuminator to avoid camera field-of-view
AssigneeValeo North America, Inc.
InventorsBrant Potter, John Orisich, Fred Roth, Kostadin Beev
Life of this patent
Estimating the term…
Abstract
An IR illuminator for providing infrared light for a digital camera having a camera lens with a camera field of view, including at least two mounting substrates arranged adjacent to the digital camera, at least one LED mounted to each of the mounting substrates for radiating the infrared light, and a free form cover lens positioned to cover the at least one LED. The shape of the free form cover lens is such that an emission pattern of light radiation is emitted without entering into the camera lens. Two IR illuminators adjacent to the camera are tilted at an angle from the camera optical direction. The shape of the free form cover lens may be elliptical or toric.
Claims12
An IR illuminator for providing infrared light for a digital camera with a camera field of view, comprising;
- at least two mounting substrates arranged adjacent to the digital camera;
- at least one LED mounted to each of the mounting substrates for radiating the infrared light,
- where a surface of each of the mounting substrates of each LED mount location is angled off from a horizontal axis by an angle greater than zero degrees, where each angle of the respective surface of each mounting substrate is angled off the horizontal axis within a range of about five degrees to about seventy degrees;
- where at least one LED is associated with a first circular lens and a second circular lens, the second circular lens configured to redirect an emission of light radiation projected from the first circular lens such that a pattern of light radiation is emitted without entering into the camera lens.
An IR illuminator for providing infrared light for a digital camera with a field of view, comprising:
- at least two mounting substrates arranged adjacent to the digital camera;
- at least one LED mounted to each of the mounting substrates for radiating the infrared light,
- where at least one LED is associated with a first circular lens and a second circular lens, the second circular lens configured to redirect an emission of light radiation projected from the first circular lens;
- wherein a surface of each of the mounting substrates of each LED mount location is angled off from a horizontal axis by an angle greater than zero degrees,
- where the field of view of a uniform emission of radiated light is greater than 70 degrees from a central direction that faces in the direction that the at least one LED faces such that a pattern of light radiation is emitted without entering into a camera lens.
An IR illuminator for providing infrared light to a digital camera with a field of view, comprising:
- at least two mounting substrates arranged adjacent to the digital camera;
- at least one LED mounted to each of the mounting substrates for radiating the infrared light, where at least one LED is associated with a first circular lens and a second circular lens, the second circular lens configured to redirect an emission of light radiation projected from the first circular lens;
- wherein a surface of each of the mounting substrates of each LED mount location is angled off from a horizontal axis of the digital camera by an angle greater than zero degrees such that a pattern of light radiation is emitted without entering into a camera lens of the digital camera.
Dependencies are inferred from the claim text.