Sharp Kabushiki Kaisha Corporation

Shinji Yamagami

Yoshiyuki Kitamura

Kazushi Yoshimura

Jin Sakamoto

Kenji Ohta

Akira Takahashi

Yoshiteru Murakami

Michinobu Mieda

Tetsuya Inui

Toshikazu Nagaura

Masayasu Futagawa

Kenji Takai

Hiroyuki Ikenaga

Hiroshi Yasumura

Hirotaka Ohno

A lighting apparatus is held by a chassis and includes a plurality of LED modules emitting light toward an outer edge portion of the chassis and a light guiding plate for controlling the direction of light emission from the plurality of LED modules to perform illumination. The LED module is not arranged at the outer edge portion of the chassis so that moment acting on the chassis as the apparatus main body holding the LED module can be reduced as compared with the case where the LED module is arranged at the outer edge portion of the chassis. Therefore, the deformation such as bending of the chassis can be prevented.

Lighting apparatus

A Stirling engine, wherein the inner yoke of a linear motor is installed on the outer peripheral surface of a cylinder. To keep a proper pressure balance between a compression space on one end side of a displacer and a back pressure space on the outer peripheral side of the cylinder, a first flow passage is formed in the piston starting at the compression space side end face toward the outer peripheral surface and a second flow passage allowing the first flow passage to communicate with the back pressure space is formed in the cylinder. The second flow passage is composed of a through hole that penetrates the wall of the cylinder in a radial direction and a communication passage formed between the outer peripheral surface of the cylinder and the inner peripheral surface of the inner yoke to allow the through hole to communicate with the back pressure space.

Stirling engine

A Stirling engine A has a pressure containerfilled with a working gas, a cylindersecured inside the pressure containera power pistonprovided inside the cylinderand a displacerprovided inside the cylinderon the same axis as the power pistonThe displacerhas a displacer pistonthat slides inside the cylinderand a rodwhich is connected and fixed to the displacer pistonand placed through a slide holeformed at the center of the power pistonThe rodis formed in the shape of a hollow pipe.

A Stirling engine, wherein when a linear motor reciprocatingly move a piston in a cylinder, a displacer also reciprocatingly moves in the cylinder storing the displacer. By this, working mixture moves between a compression space and an expansion space. Though a spring for generating resonance is combined with the displacer, a spring for generating resonance for the piston is eliminated. Gas bearings are installed for the piston at two or more positions at specified intervals in the axial direction. An inside flange formed at the end of the cylinder and a stopper plate fixed to the linear motor determine the moving limit of the piston. Since a pin projected from the stopper plate is received by a through hole in a magnet holder, the piston can be prevented from being rotated.

An optical disc having a recording film formed on one surface of a plastics substrate transparent to light, a first protection film formed on the recording film, a moisture proof film formed on the other surface of the substrate, and a second protection film formed on the moisture proof film.

Optical disc

An optical disk including a transparent plastic substrate, a recording film formed on an one side surface of said substrate, a first protective film covering said recording film, and a moisture-impermeable film formed on the other side surface of said substrate via or not via an intermediate film.

Growing community of inventors

Nabari, Japan

Shinji Yamagami