Binocular Viewing Device

Abstract

An optical device for viewing distant objects. The device includes an objective system and at least one ocular and achieves a magnifying power of greater than 0.6 mm −1 times the entrance pupil diameter in millimeters with an exit pupil of at least 2 mm Images from the objective system are detected by a sensor, processed and recorded. The images are displayed on a display which is observed by the user through one or more oculars. The optical device works well at low light levels. The device also has a slide mechanism for adjusting the interpupillary distance between the oculars.

1 - 21 . (canceled) 
     
     
         22 . A slide mechanism for adjusting the interpupillary distance between at least two oculars of an optical device, the slide mechanism comprising:
 at least one rail; and   a traveler for sliding along the at least one rail,   wherein the traveler is one of attached to and integral with a first one of the at least two oculars.   
     
     
         23 . The slide mechanism of  claim 22 , wherein the first one of the at least two oculars is coupled to a ratchet arm having a series of teeth for engaging a lock mechanism attached to a body of the optical device. 
     
     
         24 . The slide mechanism of  claim 23 , further comprising a lock button for engaging the lock mechanism, wherein upon depression of the lock button, the lock mechanism will lock the ratchet arm in place at a particular interpupillary distance between the at least two oculars. 
     
     
         25 - 30 . (canceled)