| CPC G01S 7/481 (2013.01) [G02B 27/10 (2013.01); G01S 17/93 (2013.01)] | 20 Claims |
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1. A system, comprising:
an emitter configured to emit a first light pulse in a first path;
a reflective element disposed in the first path of the first light pulse, the reflective element comprising:
a polarizing beam splitter in the first path and aligned with an aperture of the reflective element, the polarizing beam splitter configured to pass a portion of the first light pulse;
a reflective surface configured to reflect a second light pulse in a second path, the second light pulse including a return pulse based on the first light pulse being reflected from an object;
an anti-reflection layer on a first surface of the reflective surface, the first surface facing the emitter; and
a detector, the detector disposed in the second path of the second light pulse,
wherein a size of the polarizing beam splitter is smaller than a size of the reflective surface,
wherein a shape of the reflective element has a circular shape,
wherein a shape of the aperture is different from the shape of the reflective element, and
wherein at least one of the polarizing beam splitter and the anti-reflection layer is a coating on a base layer of the reflective element.
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