Athermalized mounts for lenses

Details Athermalized mounts for lenses Athermalized mounts for lenses

1998-01-05

2000-03-21

Ben, Loha

Optical: systems and elements

Lens

With support

359819, 126700, G02B 702

Patent

active

060409509

ABSTRACT:
Several embodiment of an athermalizing apparatus is described. In one embodiment, the athermalizing apparatus includes a lens element and a support member coupled to the lens element. The support member has a sloped outer surface and a first coefficient of thermal expansion ("CTE"). The athermalizing apparatus further includes a rib member having a substantially complementary sloped surface that bears on the sloped outer surface of the support member. The rib member has a second CTE. The sloped outer surface of the support member forms a ramp angle with respect to an optical axis of the lens element. A radial expansion of the support and/or rib member causes an axial displacement of the support member as a function of the ramp angle.

REFERENCES:
patent: 4541415 (1985-09-01), Mori
patent: 4861137 (1989-08-01), Nagata
patent: 5283695 (1994-02-01), Ziph-Schatzberg et al.
patent: 5299066 (1994-03-01), Rombult
patent: 5570238 (1996-10-01), Leary

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