Athermalization of a single-component lens with diffractive optics.
We describe a design method to athermalize a single-material lens element by using a kinoform on one surface to keep its focal length and aberrations constant with temperature. We diamond turned and thermally tested a plastic athermat and compared it to an uncompensated conventional lens.
Londoño
C
C
Plummer
W T
WT
Clark
P P
PP