Projecting optical device
AssigneeMinolta Co., Ltd.
InventorsTakatoshi Ishikawa, Soh Ohzawa, Katsuhiro Takamoto
Life of this patent
Estimating the term…
Abstract
A projecting optical device which simultaneously projects one object onto two or more different screens has a first screen, a second screen, a first projecting optical system which projects the object onto the first screen, and a second projecting optical system which projects the object onto the second screen and does not share an optical element with the first projecting optical system. A first base line connecting the center of the object to the center of the image projected on the first screen by the first optical system and a second base line connecting the center of the object to the center of the image projected on the second screen by the second optical system are not parallel to each other.
Claims6
A projecting optical device which simultaneously projects one object onto two or more different screens comprising:
- a first screen;
- a second screen;
- a first projecting optical system which projects the object onto said first screen and has an optical element;
- and
- a second projecting optical system which projects the object onto said second screen and has an optical element other than the optical element of the first projecting optical system,
- wherein said first optical system does not share any portion of its optical path with said second optical system.
Dependencies are inferred from the claim text.