Patent ID: 9229216
Filing Date: 2016-01-05
CPC Classification: F41G,G02B,G02F,G03B

Claim Text:
1. An electronic eyepiece comprising: a digital microdisplay; an electrically switchable light blocking mechanism configured to selectively transmit or block light transmitted along an optical path toward the digital microdisplay; a light detector having a field of view matching a field of view of the eyepiece and configured to provide a first signal indicative of a brightness of light entering the eyepiece; a use sensor configured to provide a second signal indicative of likely use or disuse of the electronic eyepiece, the use sensor including a proximity sensor configured to detect a presence of a user of the electronic eyepiece and to provide the second signal responsive to detection of the presence of the user; and a controller coupled to the electrically switchable light blocking mechanism, to the use sensor, and to the light detector, the controller being configured to: