Optical: systems and elements – Lens – Telecentric system
Reexamination Certificate
2006-04-11
2006-04-11
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Lens
Telecentric system
C359S726000, C385S018000, C385S033000
Reexamination Certificate
active
07027232
ABSTRACT:
In the beam path of an Optical Cross Connect between the front face of a fiber block and a moveable mirror array are placed a telecentric lens and multi-surface optical element. The lens is placed adjacent the front face with a front focal plane coinciding with the front face. The substantially parallel beam path axes between the front face and the telecentric lens are converted by the lens into dispersing directions towards the optical element. Discrete optical surfaces of the optical element redirect the dispersing beam paths in a fashion such that the beam paths coincide in the following with corresponding moveable mirrors of a mirror array. Pitches of arrayed fiber ends and of the optical surfaces as well as the moveable mirrors are independently selectable. The telecentric lens simultaneously focuses the signal beams with improved beam separation and reduced signal loss.
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Bakin Dmitry V.
Huang Cheng-Chung
Raizen Deborah
Sugarman Scott J.
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