| CPC G02B 27/281 (2013.01) [G02B 27/0101 (2013.01); G02B 27/0149 (2013.01); G02B 2027/0196 (2013.01)] | 6 Claims |
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1. A virtual image display device configured to display a virtual image that is formed by a display light through reflection of the display light at a translucent member and is visually recognizable, the virtual image display device comprising:
a projector that is configured to project the display light; and
a polarization adjustment member that is located along an optical path, which extends from the projector to the translucent member, while the polarization adjustment member is configured to adjust polarization of at least one of the display light and an external light which travel along the optical path, wherein:
the polarization adjustment member includes:
a polarizing plate that is shaped in a thin plate form and has a property of blocking a light which is oscillated in an axial direction of a block axis of the polarizing plate, wherein the polarizing plate is in a state where a residual stress, a degree of which is maximized in a first residual stress direction along a plane of the polarizing plate, is left in the polarizing plate; and
a support plate that is shaped in a plate form and supports the polarizing plate, wherein the support plate is in a state where a residual stress, a degree of which is maximized in a second residual stress direction along a plane of the support plate, is left in the support plate; and
the polarizing plate and the support plate are bonded together such that the first residual stress direction is along the second residual stress direction.
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