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US 2006/0187561 A1Published application
Holding device for an optical element
AssigneePrefix Corporation
InventorsMichael Trunz, Alexander Hinz
Life of this patent
Estimating the term…
Abstract
A holding device for an optical element, is formed at least in part, of a silicon-containing aluminum material.
Claims7
1-9. (canceled)
An objective for an aerial picture camera, comprising:
- an objective housing;
- an objective lens having a coefficient of thermal expansion;
- a mount supported by said objective housing, said mount holding said objective lens, said mount being positioned in direct thermal communication with both said objective lens and said objective housing;
- said objective housing and said mount being formed substantially entirely of a silicon-containing aluminum material having a coefficient of thermal expansion which matches said coefficient of thermal expansion of said objective lens.
1 more element
An objective for an aerial picture camera, comprising:
- an objective housing;
- an objective lens having a coefficient of thermal expansion;
- a mount supported by said objective housing, said mount holding said objective lens, said mount being positioned in direct thermal communication with both said objective lens and said objective housing;
- said objective housing and said mount being formed substantially entirely of a silicon-containing aluminum material having a coefficient of thennal expansion which matches said coefficient of thermal expansion of said objective lens, and said material is a material which, at a temperature in the region of 21° C., has a coefficient of thermal expansion α≦24*10−6K−1 at a density of ρ≦7.5 g/cm3.
1 more element
Dependencies are inferred from the claim text.