Patent ID: 8449110
Filing Date: 2013-05-28
Classification: G02C

Abstract:
1. A viewing glass comprising: a frame containing two glasses and two axial ends; two temples each having a joint seat; and two adjustment mechanisms connecting with the frame and the two temples, wherein the joint seat includes a groove for receiving the adjustment mechanism, the adjustment mechanism includes a location post, the axial end of the frame defines a ladder shape recess corresponding to the location post for adjusting a distance between the two temples; wherein the adjustment mechanism comprises a button and a location post extending from the button, the location post includes an opening groove to divide the location post into two parts, each part includes a hook which is away from the button; the inner surface of the joint seat along the groove includes a sliding groove to receive the button of the adjustment mechanism sliding in the sliding groove, the bottom of the sliding groove includes a location recess, the bottom of the button includes a protrusion engaged with the location recess for fixing the location post.