PROJECTION TYPE DISPLAY APPARATUS
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United States of America Patent
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Issued Date -
Nov 8, 2018
app pub date -
Nov 20, 2015
filing date -
Nov 20, 2015
priority date (Note) -
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Abstract
A head-up display 10 includes a projector 11 configured to project an image and having a projector surface 15a, a combiner 12 having a projection surface 12a onto which the image projected by the projector 11 is projected to allow an observer to see a virtual image, the projection surface 12a being tilted relative to the projector surface 15a of the projector 11, a lenticular lens sheet 18 including a plurality of top-displaced cylindrical lenses 25 arranged in a tilting direction tilted relative to the projection surface 12a, the top-displaced cylindrical lenses 25 each including a top 25a displaced such that a brightness peak of projector light is shifted, in relation to a central position in the tilting direction, toward a side where an optical path length of the project light from the projector surface 15a to the projection surface 12a is relatively long.
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