Dexerials Corporation

Sony Corporation

Masayuki Ishiwata

Mikihisa Mizuno

Mitsuo Arima

Tsutomu Nagahama

Hidetoshi Takahashi

Hitoshi Watanabe

Atsushi Uchida

Morio Tominaga

Eiki Ooyanagi

To provide a light diffuser plate that can control an anisotropic shape of diffused light. The light diffuser plate includes a base material, and a group structure including a plurality of convexities or concavities provided on at least one main surface of the base material and having anisotropic shapes extended in a common direction. The plurality of convexities or concavities are arranged randomly and densely on the main surface of the base material. A boundary between adjacent ones of the plurality of convexities or concavities includes a plurality of curved lines having curvatures different from each other.

Light diffuser plate, image display device, and lighting device

To suppress, in an optical body in which a microlens array as a non-periodic structure is arranged and deployed in a wide range, occurrence of periodic optical properties in a structural unit larger than the non-periodic structure. The optical body includes a single non-periodic structure region or a collection of a plurality of non-periodic structure regions, the non-periodic structure region being composed of a single lens group including a plurality of single lenses. In the non-periodic structure region, a located state of the single lens group is non-periodic as a whole. A ratio of a size of the non-periodic structure region to an average aperture diameter of the single lenses in the non-periodic structure region is more than or equal to 25.

Optical body, diffuser plate, display device, projection device, and lighting device

There is provided a diffuser plate, a display device, a projection device, and a lighting device that can achieve more even diffusion angle distribution properties, the diffuser plate being of a microlens array type, and including: a single lens group located on a surface of a transparent base material, in which aperture sizes and radii of curvatures of respective single lenses constituting the single lens group vary in the single lens group as a whole, and vertex positions of the respective single lenses are located irregularly, and energy distribution of light that transmits through the single lens group is substantially even in a predetermined diffusion angle range.

Diffuser plate, display device, projection device, and lighting device

A transparent conductive element includes a base having a first surface and a second surface, and a transparent electrode pattern part and a transparent insulating pattern part formed on at least one of the first surface and the second surface. The transparent electrode pattern part and the transparent insulating pattern part are laid alternately on a base surface. Plural pore portions are randomly formed apart in the transparent electrode pattern part and plural island portions are randomly formed apart in the transparent insulating pattern part.

Transparent conductive element, input device, electronic device, and master for fabrication of transparent conductive element

A transparent conductive element includes a base having a first surface and a second surface, and a transparent electrode pattern part and a transparent insulating pattern part formed on at least one of the first surface and the second surface. The transparent electrode pattern part and the transparent insulating pattern part are laid alternately on a base surface. Plural pore portions are randomly formed apart in the transparent electrode pattern part and. Plural island portions are randomly formed apart in the transparent insulating pattern part.

An optical element includes a substrate including protruding structures on the surface and a hard coat layer formed on the substrate. An irregular shape is formed by the structures. An irregular shape resembling the irregular shape of the substrate is formed on a surface of the hard coat layer and is smoother than the that of the substrate. The size of bottoms of the structures changes at random within the range of the minimum distance Rm to the maximum distance RM (Rm: minimum value of the shortest distance from the center of gravity of the bottom of the structure to the rim of the bottom, RM: maximum value of the longest distance from the center of gravity of the bottom of the structure to the rim of the bottom). Neighboring structures have bottoms in contact or substantially in contact with one another. Rm and RM satisfy Rm/RM&#x2266;0.9.

Optical element including a plurality of structures and hard coat layer formed thereon and method for making the same, master and method for making the same, and display apparatus

Growing community of inventors

Tokyo, Japan

Masayuki Ishiwata