
216 Molded Optics: Design and Manufacture
© 2011 by Taylor & Francis Group, LLC
one-tenth wave peak to valley when coupled to an infrared laser in the 2- to
6-micron waveband.
6.4.4 Long-Wave Infrared Applications for Molded Infrared Optics
Germanium has long been the workhorse of LWIR lens design. For a system
to harness the potential cost and thermal benets of using molded chalco-
genide, the designer must make the case that a molded design can rival the
performance of a germanium-based lens without added size or complexity.
Z
MON AUG 30 2010
3D Layout
MWIR_COLLIMATOR_2-6.ZMX
CONFIGURATION 3 OF 5
Y
X
–0.005
0.005
0.015
0.025
Focus Shift vs. Wavelength