| 摘要 |
A camera includes a laser diode for emitting visible laser light towards a human subject whose image is to be recorded. The laser light is divided into a plurality of discrete, aiming beams of radiation by a pair of holographic and/or diffractive elements. The discrete beams are separated by a distance of at least about 7 mm. The laser light identifies where the camera is being aimed without damaging the retina of the human subject.
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