Virtual image display device and optical unit
AssigneeSeiko Epson Corporation
InventorDaiki MATSUMOTO
Life of this patent
Estimating the term…
Abstract
A virtual image display device includes an image light generation device generating image light, a transmissive tilted mirror reflecting the image light from the image light generation device, and a concave transmissive mirror having a concave shape and reflecting, toward the transmissive tilted mirror, the image light reflected by the transmissive tilted mirror to form an exit pupil. The virtual image display device further includes an absorber layer or an absorption film on an external side of a transmissive reflective surface formed in the concave transmissive mirror.
Claims16
A virtual image display device comprising:
- an image light generation device generating image light;
- a first mirror reflecting the image light from the image light generation device;
- and
- a second mirror having a concave shape and reflecting, toward the first mirror, the image light reflected by the first mirror;
- wherein the second mirror includes a transmissive member, a first reflection member, an absorption member,
- the transmissive member includes a first surface and a second surface opposing to the first surface,
- the first reflection member on which the image light reflected by the first mirror is incident, the first reflection member is provided along the first surface of the transmissive member, the first reflection surface reflects a part of the image light and transmits other part of the image light,
- the absorption member absorbs other part of the image light, the absorption member is provided along the second surface of the transmissive member.
An optical unit comprising:
- a first mirror reflecting image light;
- and
- a second mirror having a concave shape and reflecting, toward the first mirror, the image light reflected by the first mirror;
- wherein
- the second mirror includes a transmissive member, a first reflection member, an absorption member,
- the transmissive member includes a first surface and a second surface opposing to the first surface,
- the first reflection member on which the image light reflected by the first mirror is incident, the first reflection member is provided along the first surface of the transmissive member, the first reflection member reflects a part of the image light and transmits other part of the image light,
- the absorption member absorbs other part of the image light, the absorption member is provided along the second surface of the transmissive member.
Dependencies are inferred from the claim text.