Wide field-of-view reflector and method of designing and making same
First Claim
1. A wide angle reflector device, comprising:
- a freeform surface being reflective and having a shape defined by a mapping to reflect and map a light beam onto a sensor defined by pixels arranged in a predetermined shape, the freeform surface having a physical geometric configuration that maps the scene onto the sensor substantially free of distortion.
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Abstract
A system and method for designing and using freeform reflectors to collect images of a wide angle field-of-view scene is provided. A freeform reflector may enable a wide angle field-of-view to be collected in an unwarpped and unwrapped manner such that computer processing may be eliminated. Furthermore, the use of a freeform reflector allows for larger areas of an image sensor chip to be used, thereby providing higher resolution images. Because freeform reflectors may be configured to map a scene onto the image sensor chip in a scalar and mathematically correct manner, output images may be directly displayed from the image sensor chip. Wide angle field-of-view imaging systems, such as surveillance, alarm, and projector system, may utilize freeform reflectors as provided herein.
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Citations
20 Claims
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1. A wide angle reflector device, comprising:
a freeform surface being reflective and having a shape defined by a mapping to reflect and map a light beam onto a sensor defined by pixels arranged in a predetermined shape, the freeform surface having a physical geometric configuration that maps the scene onto the sensor substantially free of distortion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification