IR RECEIVER AND IR TRANSMITTER/RECEIVER MODULE USING SAME
First Claim
1. An infrared receiver configured for capturing infrared signals, comprising:
- an aspherical lens defining an optical axis and an image side;
an infrared bandpass filter;
a wavefront encoding wave-plate; and
a sensor;
wherein the infrared bandpass filter, the wavefront encoding wave-plate, and the sensor are sequentially arranged at the image side of the aspherical lens, along the optical axis, and the sensor is configured for detecting the infrared (IR) signals sequentially passing through the aspherical lens, the infrared bandpass filter, and the wavefront encoding wave-plate, the sensor thereby being configured for capturing the IR signals.
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Accused Products
Abstract
An exemplary IR receiver configured for capturing IR signals is provided. The IR receiver includes an aspherical lens, an IR bandpass filter, a wavefront encoding wave-plate, and a sensor. The aspherical lens defines an optical axis and an image side. The IR bandpass filter, the wavefront encoding wave-plate, and the sensor are sequentially arranged (i.e., in that order) at the image side of the aspherical lens, along the optical axis. The sensor is configured for detecting the IR signals sequentially passing through the aspherical lens, the IR bandpass filter and the wavefront encoding wave-plate and is thereby configured for capturing the IR signals. An exemplary IR transmitter/receiver module includes an IR transmitter configured for emitting IR signals and the IR receiver, as above-mentioned.
17 Citations
15 Claims
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1. An infrared receiver configured for capturing infrared signals, comprising:
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an aspherical lens defining an optical axis and an image side; an infrared bandpass filter; a wavefront encoding wave-plate; and a sensor; wherein the infrared bandpass filter, the wavefront encoding wave-plate, and the sensor are sequentially arranged at the image side of the aspherical lens, along the optical axis, and the sensor is configured for detecting the infrared (IR) signals sequentially passing through the aspherical lens, the infrared bandpass filter, and the wavefront encoding wave-plate, the sensor thereby being configured for capturing the IR signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An infrared transmitter/receiver module, comprising:
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an infrared transmitter comprising at least one infrared (IR) source each configured for emitting IR signals; and an infrared receiver configured for capturing the infrared signals, the infrared receiver comprising; an aspherical lens defining an optical axis and an image side; an infrared bandpass filter; a wavefront encoding wave-plate; and a sensor; wherein the infrared bandpass filter, the wavefront encoding wave-plate, and the sensor are sequentially arranged at the image side of the aspherical lens, along the optical axis, and the sensor is configured for detecting the infrared signals sequentially passing through the aspherical lens, the infrared bandpass filter, and the wavefront encoding wave-plate, the sensor thereby being configured for capturing the infrared signals. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification