Optical element, head-up display and method for producing optical element
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United States of America Patent
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Apr 16, 2013
Grant Date -
Aug 30, 2012
app pub date -
Feb 28, 2011
filing date -
Feb 28, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An optical element includes first and second microlens array units on which microlenses are arranged. The microlenses are formed by lens contour having a polygonal shape in a plan view. The first and second microlens array units are arranged opposite to each other at a position where a distance between the first and second microlens array units is at least longer than a focal distance of the microlens, and are formed so that a direction of vertices of the lens contour of the microlens arranged on the first microlens array unit is different from a direction of vertices of the lens contour of the microlens arranged on the second microlens array unit. According to the above optical element, it is possible to appropriately suppress an influence of shift of the position between the first and second microlens array units, and it becomes possible to produce the optical element with ease.
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