Patent ID: 11863854
Assignee: ASIA OPTICAL CO., INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The lens device as claimed in claim 1, wherein:
the first reflecting part is a first prism unit;
the first prism unit comprises a first surface, a second surface and a third surface;
the light beam enters the first prism unit through the first surface, is totally reflected in the first prism unit at least three times, and leaves the first prism unit from the second surface and perpendicular to the second surface;
the first surface is perpendicular to an optical axis of the first lens module;
the first surface meets the second surface at a first angle ranged from 42.75° to 47.25°;
the second surface meets the third surface at a second angle ranged from 64.125° to 70.875′;
the first surface meets the third surface at a third angle ranged from 64.125° to 70.875°.