| 摘要 |
An eye tracking apparatus for monitoring a user's eye, for use in conjunction with secondary optical apparatus such as binoculars or night vision goggles. An optical assembly is adapted directly to image the eye from within the user's field of vision, and relay the image to a sensing element, which can be located outside the field of vision. Additionally the scene is imaged, also optionally from within the user's field of vision, which allows for scene imaging through the secondary optical apparatus. The optical assembly typically extends across the eyepiece of for example binoculars, and can be provided in a small form factor so as to interfere minimally with the view through the eyepiece. Both eye image and scene image can be relayed through the optical assembly, resulting in further space efficiencies.
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