Patent ID: 9298000
Filing Date: 2016-03-29
CPC Classification: G02B

Claim Text:
1. An apparatus, comprising a mirror module having a plurality of individually controllable mirror segments to reflect an incident beam having a variable incidence angle; and a controller configured to determine deflection profiles of the individually-controllable mirror segments, and provide control signals to the individually controllable mirror segments to adjust the deflection profiles, such that the individually controllable mirror segments collectively reflect the incident beam in a predetermined direction, the deflection profiles emulating a flat mirror surface, tilting each of the mirror segments by ΔΘ/2 when the incident beam angle shifts by ΔΘ for emulating the flat mirror surface, and aligning the tilted mirror segments by adjusting height differences S between neighboring mirror surfaces of the tilted mirror segments having the same pitch d to satisfy S=tan(Δθ/2)×d.