Image capture apparatus
First Claim
1. An image capture apparatus, comprising:
- a light guide element having a first side and a second side, wherein the light guide element has a light emitting portion disposed on the second side, and the light emitting portion has a plurality of enhanced transmission microstructures;
an image capture device disposed on the second side of the light guide element corresponding to the position of the enhanced transmission microstructures; and
a light emitting device for generating a light beam which is transmitted in the light guide element;
wherein the light beam undergoes at least one total reflection in the light guide element to form a signal light beam passing through the enhanced transmission microstructure and then received by the image capture device,wherein the light guide element has a total reflection critical angle, and each enhanced transmission microstructure includes a light receiving area enabling an incident angle of the signal light beam to be less than the total reflection critical angle, and a back area enabling an incident angle of the signal light beam to be greater than the total reflection critical angle, and the light receiving area is greater than back area.
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Accused Products
Abstract
An image capture apparatus including a light guide element, an image capture device and a light emitting device. The light guide element has a first side, a second side and a light emitting portion located at the second side. The light emitting portion includes a plurality of enhanced transmission microstructures. The image capture device is disposed on the second side of the light guide element corresponding to the position of the enhanced transmission microstructures. A light beam, which is generated by the light emitting device and transmitted at least by the light guide element, is totally reflected to form a signal light beam. Thereafter, the signal light beam passes through the enhanced transmission microstructures and then is received by the image capture device.
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Citations
19 Claims
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1. An image capture apparatus, comprising:
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a light guide element having a first side and a second side, wherein the light guide element has a light emitting portion disposed on the second side, and the light emitting portion has a plurality of enhanced transmission microstructures; an image capture device disposed on the second side of the light guide element corresponding to the position of the enhanced transmission microstructures; and a light emitting device for generating a light beam which is transmitted in the light guide element; wherein the light beam undergoes at least one total reflection in the light guide element to form a signal light beam passing through the enhanced transmission microstructure and then received by the image capture device, wherein the light guide element has a total reflection critical angle, and each enhanced transmission microstructure includes a light receiving area enabling an incident angle of the signal light beam to be less than the total reflection critical angle, and a back area enabling an incident angle of the signal light beam to be greater than the total reflection critical angle, and the light receiving area is greater than back area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification