Sony Corporation

Daisuke Tsukuda

Hideo Nagasaka

Nobuhiro Suzuki

Katsuyuki Akutsu

Takashi Mizusawa

Kazutatsu Tokuyama

Yusuke Kajio

Hideo Nagasaki

An optical device that includes a light guide plate, a first deflection means, arranged on at least one of a first surface or a second surface of the light guide plate, that deflects light incident on the light guide plate to cause the light incident on the light guide plate to be totally reflected inside the light guide plate, and a second deflection means, arranged on at least one of the first surface or the second surface of the light guide plate, that deflects the light propagated inside the light guide plate by total reflection to cause the light propagated inside the light guide plate by total reflection to be emitted from the light guide plate. The light guide plate further includes a substrate including a first surface and a second surface facing the first surface, a first planarizing film, formed on the first surface of the substrate, containing an organic material, and a second planarizing film, formed on the second surface of the substrate, containing an organic material. The substratecan contain a resin material.

Optical device and display device

In some embodiments, a head mounted display is provided, comprising a light guide, at least first and second diffraction gratings, alignment marks Aand Bassociated with the first diffraction grating, and alignment marks Aand Bassociated with the second diffraction grating. The first diffraction grating may be disposed on a first surface of the light guide, the first surface facing away from a light input. The second diffraction grating may be disposed on a second surface of the light guide, the second surface facing towards the light input. The second diffraction grating may be adapted to diffract at least some of the light input into the light guide, and the first diffraction grating may be adapted to diffract at least some light transmitted through the light guide back into the light guide.

Optical device, head mounted display, assembling method for the same, holographic diffraction grating, display device, and alignment device

Growing community of inventors

Kanagawa, Japan

Daisuke Tsukuda