Method and Apparatus for Providing Omnidirectional Lighting in a Scanning Device
First Claim
1. A method for decoding an encoded data symbol, the method comprising:
- providing a light source comprising a plurality of individually-controllable lighting elements for providing low angle dark field illumination;
activating an image sensor for detecting image data reflected from an encoded data symbol when the encoded data symbol is illuminated by the light source; and
providing a controller connected to each of the individually-controllable lighting elements, the controller being programmed for;
selectively activating the individually-controllable lighting elements to vary the direction of the low angle dark field illumination provided by the light source; and
processing the image data detected by the image.
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Accused Products
Abstract
Systems and methods are provided for selectively controlling the illumination, and particularly dark field illumination, applied to a symbol to be decoded, and for determining a suitable or optimized level of lighting for decoding the symbol. A method includes providing a light source comprising a plurality of individually-controllable lighting elements for providing low angle dark field illumination; activating an image sensor for detecting image data reflected from an encoded data symbol when the encoded data symbol is illuminated by the light source; and providing a controller connected to each of the individually-controllable lighting elements, the controller being programmed for: selectively activating the individually-controllable lighting elements to vary the direction of the low angle dark field illumination provided by the light source; and processing the image data detected by the image.
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Citations
2 Claims
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1. A method for decoding an encoded data symbol, the method comprising:
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providing a light source comprising a plurality of individually-controllable lighting elements for providing low angle dark field illumination; activating an image sensor for detecting image data reflected from an encoded data symbol when the encoded data symbol is illuminated by the light source; and providing a controller connected to each of the individually-controllable lighting elements, the controller being programmed for; selectively activating the individually-controllable lighting elements to vary the direction of the low angle dark field illumination provided by the light source; and processing the image data detected by the image.
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2-30. -30. (canceled)
Specification