Omron Corporation

Tsuyoshi Arai

Gouo Kurata

Masayuki Shinohara

Yuto Mori

Norikazu Kitamura

Yasuhiro Tanoue

Yoshihiko Takagi

Kazuhide Hirota

Mitsuru Okuda

Takahiro Morichi

Hayato Yoshida

A lens array included in a display switching device according to one or more embodiments may include a portion having a greater average of curvature radii of microlenses at a greater distance from a predetermined lens reference position on a surface of the lens array including the microlenses.

Display switching device

A display switching device () is provided, which switches a display image (P) by switching irradiation of lights from positions of a plurality of light sources (). The display switching device includes: a lens array () in which a plurality of lenses are arranged; and a display part () including a plurality of pixel regions () arranged to include a region through which a light, which is formed by condensing each of the lights emitted from the positions of the plurality of light sources () with each of the lenses of the lens array (), passes. A transmittance in each of the pixel regions () is set corresponding to a predetermined stationary pattern. A total area of the pixel regions () in the display part () is 60% or less of a total area of a sum of the pixel regions () and the pixel surrounding regions ().

Display switching device and switch

In order to achieve an image display unit having excellent degree of freedom in designing the position of a display image, an image display unit (A) is provided with: an imaging unit () configured to capture an image of a space to be viewed; an image display device () configured to display an image captured by the imaging unit () in a display area in real time; and an image forming unit configured to form an image in a space where there is no screen by projecting the image displayed by the image display device ().

Image display unit

To make a displayed image clear. A display device emits image light reflected by a plurality of prisms () provided in a light guide plate () from a light exit surface (). The prism () has a reflective surface () that reflects and emits the image light. The reflective surface () is formed in a curved shape in a thickness direction of the light guide plate ().

Display device

An optical device includes a planar-image forming unit configured to emit light that forms a planar image of a predetermined shape in a space, and an outline-image forming unit configured to emit light that forms an outline image with a light intensity different from the light intensity of the planar image at the outer-edge region of the planar image.

Optical device and method of three-dimensional display

An optical structure, a light guide, and a display device can reduce an influence of diffraction and improve optical performance more than conventionally possible. A reflective pattern (A) is an optical structure that changes a traveling direction of light and emits the light, the optical structure including: a reflective surface () formed of a flat surface and configured to change a traveling direction of light; and a both-end curved surface () formed adjacent to the reflective surface () and having a surface in a curved shape corresponding to a side surface of a cylinder.

Optical structure, light guide, and a display device

Provided is a display device that prevents generation of stray light and has excellent visibility. In a display device () that makes an image light ray enter from an end face of a light guide plate () and emits the image light ray, reflected or refracted by each of a plurality of emission structures (prisms) provided on the light guide plate, from a light exit surface () of the light guide plate, a light reflection layer or a light absorption layer is formed on at least one optical surface among optical surfaces provided on the emission structure (the prism) except for an optical surface that reflects or refracts the image light ray.

In a light guide plate, a light introducing unithaving a thickness larger than that of a light guide plate bodyis provided at an end of the light guide plate body. A point source of lightis placed so as to face an end face of the light introducing unit(a light incident end face). The light introducing unithas a protruding portion in a shape of a half of a frustum of a cone protruding from a surface on the light guide plateto have a large thickness, and the protruding portion has an outer perimeter surface forming an inclined surface. On the inclined surface, V-groove structuresare arranged along the outer perimeter surface of the protruding portion to configure a directivity conversion pattern. Furthermore, on an inner perimeter portion of the directivity conversion pattern, an auxiliary inclined surfacehaving an angle of inclination smaller than the angle of inclination of the inclined surfaceis formed along an inner perimeter edge of the directivity conversion pattern

Growing community of inventors

Kyoto, Japan

Tsuyoshi Arai