IMAGE PROJECTION APPARATUS AND PROGRAM
To make visible a difference in thickness of a spacer such as a plate member arranged between a lighting unit and an image display unit, or between the lighting unit and a projection optical unit.SOLUTION: An image projection apparatus according to one embodiment of disclosed arts comprises an image...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
10.10.2019
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Subjects | |
Online Access | Get full text |
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Summary: | To make visible a difference in thickness of a spacer such as a plate member arranged between a lighting unit and an image display unit, or between the lighting unit and a projection optical unit.SOLUTION: An image projection apparatus according to one embodiment of disclosed arts comprises an image display unit, a lighting unit which lights up the image display unit, and a projection optical unit, and projects an image formed on the display unit by the image projection optical unit. A plurality of spacers differing in thickness from each other are arranged between the lighting unit and the image display unit or between the lighting unit and the projection optical unit, and the plurality of spacers differing in thickness from each other are larger in thickness as a plane perpendicular to a thickness direction is larger or smaller in size.SELECTED DRAWING: Figure 19
【課題】照明ユニットと画像表示ユニットとの間、或いは照明ユニットと投射光学ユニットとの間に配置する板部材等のスペーサの厚さの違いを視認可能にすることを課題とする。【解決手段】開示の技術の一態様に係る画像投射装置は、画像表示ユニットと、前記画像表示ユニットを照明する照明ユニットと、投射光学ユニットとを備え、前記画像表示ユニットに形成された画像を前記投射光学ユニットで投射する画像投射装置であって、前記照明ユニットと前記画像表示ユニットとの間、もしくは、前記照明ユニットと前記投射光学ユニットとの間に、互いに厚さの異なる複数のスペーサが配置され、前記互いに厚さの異なる複数のスペーサは、厚さ方向に垂直な面の大きさが大きいほど、もしくは、前記大きさが小さいほど、前記厚さに厚みがあることを特徴とする。【選択図】図19 |
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Bibliography: | Application Number: JP20180062937 |