Projection lens
AssigneeFUJIFILM Corporation
InventorsYukiko Nagatoshi, Shoki Kasahara
Life of this patent
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Abstract
A projection lens, which is a projection lens to be attached to a projection apparatus body having an electro-optical device, includes: a zoom optical system including a plurality of lenses; a first holding portion that is to be connected to the projection apparatus body and through which light along a first optical axis passes; and a second holding portion through which light along a second optical axis, which is bent with respect to the first optical axis, passes and that is rotatable relative to the first holding portion. The zoom optical system is held by the first holding portion.
Claims20
A projection lens to be attached to a projection apparatus body having an electro-optical device, comprising:
- a zoom optical system including two groups of lenses;
- a first holding portion that is to be directly connected to the projection apparatus body and through which light along a first optical axis passes;
- and
- a second holding portion through which light along a second optical axis, which is bent with respect to the first optical axis, passes and that is rotatable relative to the first holding portion,
- wherein the two groups of lenses are held by the first holding portion such that one of the two groups of lenses are movable relative to the other of the two groups of lenses along the first optical axis.
Dependencies are inferred from the claim text.