Patent ID: RE42450

Claim:
A module of reflection mirrors of L-shape is comprised of comprising : a first L-shaped mirror; and a second L-shaped mirror, the wherein a recession portion of which is corresponded the second L-shaped mirror corresponds to that a recession portion of the first L-shaped mirror; wherein , after entering into the module with a specific angle, the incident light is inter-reflected between the first L-shaped mirror and the second L-shaped mirror , and then leaves the module with another angle, ; wherein the recession portion of the first L-shaped mirror has a first reflection zone and a second reflection zone : ; wherein the recession portion of the second L-shaped mirror has a third reflection zone and a fourth reflection zone; and wherein, after entering the module with a the specific angle, the incident light is reflected in sequence through the second reflection zone, the third reflection zone, the fourth reflection zone, the second reflection zone, the first reflection zone, the fourth reflection zone, and the third reflection zone , and finally leaves the module of reflection mirrors of L-shape with another angle that is different from the entering specific angle.