Imaging optical system, projection display device, and imaging apparatus
AssigneeFUJIFILM Corporation
InventorsMasaru AMANO, Yukiko NAGATOSHI
Life of this patent
Estimating the term…
Abstract
The imaging optical system consists of, in order from a magnification side: a first imaging optical system that forms an intermediate image on a position conjugate to a magnification side imaging surface; and a second imaging optical system that re-forms the intermediate image on a reduction side imaging surface. The first imaging optical system consists of, in order from the magnification side, a first A lens group, a first optical path deflection unit that deflects an optical path, a first B lens group, and a second optical path deflection unit that deflects the optical path. In addition, the intermediate image is formed between the second optical path deflection unit and the second imaging optical system.
Claims18
An imaging optical system consisting of, in order from a magnification side:
- a first imaging optical system that forms an intermediate image on a position conjugate to a magnification side imaging surface;
- and
- a second imaging optical system that re-forms the intermediate image on a reduction side imaging surface,
- wherein the first imaging optical system consists of, in order from the magnification side, a first A lens group, a first optical path deflection unit that deflects an optical path, a first B lens group, and a second optical path deflection unit that deflects the optical path, and
- wherein the intermediate image is formed between the second optical path deflection unit and the second imaging optical system.
Dependencies are inferred from the claim text.