| 摘要 |
<p>An optical viewing device (10) comprises a tubular camera casing (16) having a front end and a rear end and including near its front end an image sensor (38) for transforming optical images to electric signals, and optics (27) for focusing on to the image sensor and filtering optical images acquired from objects located in a region in front of the optics. The device additionally comprises a sleeve with an open rear end, which sleeve is detachably connectable to the rear end of the tubular camera casing and provides a socket for the user's finger; the socket being sealed off from the optics and the image sensor. An optical viewing system includes the described optical viewing device adapted for mounting on a user's finger, a separate camera control unit wire-linked to the device, and a remotely-located video monitor.</p> |
