Information handling system partial spectrum camera shutter
An information handling system camera is secured against unauthorized image captures by a shutter that mechanically closes across the camera lens to block visible light from entering the camera. The shutter integrates an infrared bypass filter that passes through infrared light while blocking visible light so that the camera can support facial recognition when the mechanical shutter secures the camera to prevent unauthorized capture of visual images.
1. An information handling system comprising:
a housing;
a processor disposed in the housing and operable to execute instructions to process information;
a memory interfaced with the processor and operable to store the instructions and information;
a display interfaced with the processor and operable to present the information as visual images;
a camera disposed in the display and operable to capture an image analyzed to perform facial recognition in a predetermined spectrum; and
a shutter operable to slide to selectively block and expose the camera, the shutter having a filter that passes only light in the predetermined spectrum associated with the facial recognition and filters all visible light when the shutter slides to block the camera, the camera capturing visual images with the visible light when the shutter exposes the camera.
2. The information handling system of claim 1 further comprising:
an illumination source operable to provide light associated with the facial recognition;
wherein the filter passes the light provided by the illumination source.
3. The information handling system of claim 2 wherein the illumination source comprises infrared light and the filter filters all visible light.
4. The information handling system of claim 3 wherein the filter comprises a liquid crystal activated to pass infrared light when the illumination source illuminates infrared light.
5. The information handling system of claim 3 further comprising a light emitting diode that provides a visible light indication when the illumination source provides illumination.
6. The information handling system of claim 3 wherein the filter passes the illumination through an opening narrowed to a field of view associated with facial recognition.
7. The information handling system of claim 3 wherein the filter slides between an open position that exposes the camera and a closed position that covers the camera.
8. The system of claim 3 wherein the display and camera integrate in the housing.
9. The system of claim 3 wherein the display comprises a peripheral display separate from the housing and the camera integrates in the peripheral display.
10. A method for securing an information handling system, the method comprising:
capturing visual images with a camera of the information handling system in a visual light spectrum;
sliding a shutter across the camera, the shutter integrating a filter to block all visual spectrum light for the capturing visual images with the camera, the filter passing only a predetermined light spectrum outside of the visual light spectrum to secure the camera from capture of visual images in the visual light spectrum;
capturing light with the camera in the predetermined light spectrum through the filter; and
applying the captured light of the predetermined light spectrum to perform facial recognition.
11. The method of claim 10 further comprising:
interfacing the information handling system with a peripheral display; and
integrating the camera in the peripheral display.
12. The method of claim 10 further comprising:
integrating a display in a portable housing of the information handling system; and
integrating the camera in the portable housing of the information handling system.
13. The method of claim 10 wherein the filter comprises an infrared pass filter that passes infrared light and blocks visible light.
14. The method of claim 13 further comprising:
illuminating an infrared light source to perform facial recognition; and
capturing the infrared illumination with the camera through the infrared pass filter, the infrared pass filter passing only infrared illumination of the infrared light source.
15. The method of claim 10 further comprising illuminating a visible light emitting diode in response to illuminating the infrared light source.
16. The method of claim 13 wherein the infrared pass filter narrows the field of view of the camera to a predetermined facial region.
17. An information handling system camera security system comprising:
a camera operable to capture images in a visible light spectrum and infrared images in an infrared light spectrum, the infrared images applied to perform facial recognition; and
a shutter sliding between a first position that blocks all light in the visible light spectrum from the camera and a second position that exposes the camera, the shutter integrating an infrared pass filter to allow the camera to receive infrared light with the shutter when the shutter blocks the camera, the camera capturing visual images in the visual spectrum when the shutter exposes the camera.
18. The information handling system camera security system of claim 17 wherein the camera has a field of view and the infrared pass filter passes infrared light to the camera though a more narrow field of view than the camera.
19. The information handling system camera security system of claim 17 further comprising:
an infrared light source operable to illuminate in the infrared light spectrum when a facial recognition is commanded; and
a visible light indicator operable to illuminate when the infrared light source illuminates to provide an indication of a facial recognition operation by the camera.
20. The information handling system camera security system of claim 19 wherein the infrared pass filter comprises liquid crystals that selectively activate to pass infrared light when performing a facial recognition operation.