Kenji Konno

TL;DR: An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray from the center of the display surface is obliquely incident on the projection surface, in order to project a magnified image of the image displayed on the display surfaces onto the projection surfaces includes a plurality of reflecting surfaces having a power as discussed by the authors.

TL;DR: In this article, a taking lens system has a first lens unit that is disposed at the object-side end of the zoom lens system, that has a negative optical power as a whole, that includes a reflective member for bending the optical axis of the lens system as the whole at substantially 90°, and that remains stationary relative to the image sensor during the zooming of the system, while the second lens unit is disposed on the image-sensor side of the first unit with a variable aerial distance secured in between, and the third lens unit moves toward the object side during

TL;DR: In this paper, an arrangement relation between the exit surface of an imaging side prism and the image sensor was established to satisfy the conditional formula (1): 0.0≦d/a < 0.8 (1) where d represents a distance between the exiting surface and the light receiving surface of the image sensors.

TL;DR: In this article, a zoom lens system has the first to fifth lens units from the object side, and the distance between the front and rear lens units is fixed during a zooming mode.