Illuminator for directly providing dark field and bright field illumination
First Claim
1. An illuminator comprising:
- a support frame;
an optical diffuser connected to the support frame;
a first plurality of light emitting diodes (LEDs) connected to the support frame, the first plurality of LEDs configured to provide dark field illumination at a high angle of incidence with respect to an object, the first plurality of LEDs further configured to provide illumination to the object without the use of a light pipe, diffuser, or reflector;
a second plurality of LEDs connected to the support frame, the second plurality of LEDs configured to provide bright field illumination at a low angle of incidence with respect to the object, the second plurality of LEDs further configured to provide illumination to the object without the use of a light pipe, diffuser, or reflector; and
a third plurality of LEDs connected to the support frame, the third plurality of LEDs configured to provide bright field illumination through the optical diffuser without the use of a light pipe or reflector.
1 Assignment
0 Petitions
Accused Products
Abstract
Imaging devices and illuminating devices are provided. In one exemplary implementation, an imaging device comprises an optical sensor and an illuminator. The illuminator comprises a support frame and a plurality of light emitting diodes (LEDs) connected to the support frame. A first set of LEDs of the plurality of LEDs is configured to provide dark field illumination at a high angle of incidence with respect to an object. The first set of LEDs is configured to provide illumination without the use of a light pipe, diffuser, or reflector. A second set of LEDs of the plurality of LEDs is configured to provide bright field illumination at a low angle of incidence with respect to the object. The second set of LEDs is configured to provide illumination without the use of a light pipe, diffuser, or reflector.
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Citations
20 Claims
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1. An illuminator comprising:
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a support frame; an optical diffuser connected to the support frame; a first plurality of light emitting diodes (LEDs) connected to the support frame, the first plurality of LEDs configured to provide dark field illumination at a high angle of incidence with respect to an object, the first plurality of LEDs further configured to provide illumination to the object without the use of a light pipe, diffuser, or reflector; a second plurality of LEDs connected to the support frame, the second plurality of LEDs configured to provide bright field illumination at a low angle of incidence with respect to the object, the second plurality of LEDs further configured to provide illumination to the object without the use of a light pipe, diffuser, or reflector; and a third plurality of LEDs connected to the support frame, the third plurality of LEDs configured to provide bright field illumination through the optical diffuser without the use of a light pipe or reflector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An imaging device comprising:
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an optical sensor; and an illuminator comprising a support frame and a plurality of light emitting diodes (LEDs) connected to the support frame; wherein a first set of LEDs of the plurality of LEDs is configured to provide dark field illumination at a high angle of incidence with respect to an object, the first set of LEDs further configured to provide illumination without the use of a light pipe, diffuser, or reflector; and wherein a second set of LEDs of the plurality of LEDs is configured to provide bright field illumination at a low angle of incidence with respect to the object, the second set of LEDs further configured to provide illumination without the use of a light pipe, diffuser, or reflector. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification