Patent ID: 9298076
Filing Date: 2016-03-29
CPC Classification: A61B,G03B

Claim Text:
1. An image projector comprising: an imaging-element that has a field aperture and that captures an image of an object in a reception-path in at least one first wavelength; a projection-element that has a projection surface and that projects the image onto the object in a projection-path in at least one second wavelength; an interference-splitter for reflecting either one of the at least one first wavelength and the at least one second wavelength, and allowing passage of the other one of the at least one first wavelength and the at least one second wavelength; the imaging-element and the projection-element arranged such that either one of the projection-path and the reception-path passes through the interference-splitter, while the other one of the projection-path and the reception-path is reflected by the interference-splitter; the interference-splitter coinciding the projection-path and the reception-path between the interference-splitter to the object; the interference-splitter separating the projection-path and the reception-path from the interference-splitter to the respective projection-element and imaging-element; wherein the projection-path between the projection-element to the interference-splitter is conjugate with the reception-path between the interference-splitter and the imaging-element; wherein the field aperture is a part of the imaging-element conjugate to the interference-splitter; and wherein the field aperture crops the image received on the field aperture to have substantially the same area as the projection surface.