System and method for dynamic optical filtration
First Claim
Patent Images
1. A method comprising:
- receiving incident light intended for a receptor;
sending part of the incident light to a sensor, wherein the sensor is in a first plane and the incident light is in a second plane;
identifying a portion of the incident light that exceeds a predetermined threshold intensity; and
adjusting the opacity of a first plurality of cells of a matrix corresponding to the portion.
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Abstract
A dynamic optical filtration system and method effectively blocks bright light sources without impairing view of the remainder of the scene. A sensor measures light intensity and position so that selected cells of a shading matrix may interrupt the view of the bright light source by a receptor. A beamsplitter may be used so that the sensor may be located away from the receptor. The shading matrix may also be replaced by a digital micromirror device, which selectively sends image data to the receptor.
23 Citations
50 Claims
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1. A method comprising:
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receiving incident light intended for a receptor;
sending part of the incident light to a sensor, wherein the sensor is in a first plane and the incident light is in a second plane;
identifying a portion of the incident light that exceeds a predetermined threshold intensity; and
adjusting the opacity of a first plurality of cells of a matrix corresponding to the portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a light deflector to redirect incident light of an image being received by a receptor;
a sensor to receive the redirected incident light;
a matrix comprising a plurality of cells, wherein the opacity of each of the cells may selectively be adjusted; and
a controller coupled to the matrix, wherein the controller;
receives information about the intensity of the redirected incident light from the sensor; and
adjusts the opacity of one or more cells of the matrix based upon the information. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 37, 38, 40, 41, 42, 50)
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23. A system comprising:
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a sensor to receive incident light from a scene intended for a receptor;
a matrix comprising a plurality of elements, wherein each of the elements is adjustable to selectively send incident light to the receptor; and
a controller coupled to the matrix, wherein the controller;
receives information about the intensity of the incident light from the sensor; and
adjusts one or more elements of the matrix.
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34. A method comprising:
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reflecting incident light from a mirror to a sensor;
sensing the intensity of the incident light; and
selectively positioning the mirror to reflect the incident light to a receptor based on the intensity of the incident light.
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36. A system comprising:
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a mirror for reflecting incident light;
a sensor to measure the intensity of the incident light; and
a controller for receiving information from the sensor, wherein the controller selectively positions the mirror to reflect the incident light to a receptor.
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39. An article comprising a medium storing software which, when executed, causes a processor-based system to:
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receive light intensity information from a sensor where the sensor is not in a primary image plane;
compare the light intensity information to a predetermined threshold intensity value; and
adjust the opacity of one or more cells of a matrix.
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43. An attachment for a camera, comprising:
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a matrix comprising a plurality of selectively transmissive units;
a light deflector for sending a portion of the incident light to a sensor; and
a first adjustable lens for receiving incident light, wherein the first adjustable lens may be moved such that the incident light reaches a focal point at the matrix. - View Dependent Claims (44, 45, 46, 47, 48, 49)
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Specification