Kyocera Corporation

Satoru Tsubokura

Motohiro Umehara

Takashi Uto

Hiroyuki Kinoshita

Yoshinori Kubo

Kazushi Kamiyama

Shinji Inoue

Mitsuhiro Kajihara

An optical component according to the present disclosure includes a substrate containing sapphire. The substrate is provided with a functional portion and a heat dissipating portion. An inclination of a main face of the substrate is 75° or greater with respect to a c-plane of the sapphire. The functional portion and the heat dissipating portion are provided so that an angle formed by a c-axis of the sapphire and a line segment connecting the functional portion and the heat dissipating portion is 15° or less.

Optical component, image display device using same, and head-up display

The plunger of the present disclosure includes: a plunger main body section that is made of sapphire, has a pillar shape, and includes a non-penetrating fitting hole extending in a central axis direction from one end portion; a core portion that is inserted into the fitting hole and has a higher thermal conductivity than sapphire; and a joint layer that is interposed between an inner peripheral surface and a bottom surface of the fitting hole of the plunger main body section, and an outer peripheral surface and a tip surface of the core portion, the joint layer being configured to bond the plunger main body section and the core portion. A pump includes the plunger. A liquid analysis device includes the pump.

Plunger, pump, and liquid analysis device

An electronic apparatus is provided. The electronic apparatus includes a case body including a single crystal body in at least a portion thereof, the single crystal body containing alumina (AlO) as a main component; a plurality of information processing devices in the case body; and a thermally conductive portion that thermally connects at least one of the information processing devices to the single crystal body.

Electronic apparatus

An electronic apparatus and a light-transmissive cover plate are disclosed. The electronic apparatus includes an image display device; and a light-transmissive cover plate that includes a first surface facing the image display surface and a second surface positioned on the opposite side of the first surface. The light-transmissive cover plate is made of a single crystal that contains alumina (AlO) as a main component and has a step-terrace structure in at least a portion of the second surface.

Electronic apparatus, light-transmissive cover plate, and portable device

A hemispheric lens of a single crystal having a refractive index of 2.0 or over is used as a SIL lens of an optical system for optical recording. The single crystal is LiNbO3, LiTaO3, rutile phase TiO2, PbMoO4, TeO2, SrTiO3, ZrO2, SrNbO3, SrTaO3, CaNbO3, CaTaO3, CaTiO3, KNbO3, KTaO3, BaZrO3, SrZrO3, CaZrO3, KNbO3, KTaO3, BaZrO3, SrZrO3, CaZrO3, ZnWO4, ZnMoO4, CdWO4, CdMoO4, PbWO4, Bi20SiO12, Bi20GeO12, Bi4Si3O12, Bi4Ge3O12, GaP, ZnTe, ZnSe, Cu3TaSe4 or ZnS.

Growing community of inventors

Higashiomi, Japan

Satoru Tsubokura