Nippon Electric Glass Co., Ltd.

Yoshimasa Yamaguchi

Masaaki Kadomi

Masanori Wada

Takashi Nishimiya

Hirokazu Tanaka

Hirokazu Takeuchi

Sotohiro Nakajima

Tadashi Seto

Nagaharu Nakajima

Masanobu Minami

Katsumi Inada

Kazunari Yamamoto

Takahumi Nishimiya

A prism is provided with which the positional accuracy can be effectively enhanced. The prism includes: a prism bodyhaving a bottom surfaceand an inclined surfaceconnected to the bottom surface; and an adhesive filmprovided on the bottom surface, the adhesive filmincluding a first layer portion positioned on a side facing the prism bodyand a second layer portionincluding at least one of an Au layer or an Sn layer, the first layer portionand the second layer portiondirectly or indirectly stacked.

Prism, optical device, method for manufacturing prism, and method for manufacturing package device

A light source using a wavelength conversion member is increased in brightness. A wavelength conversion elementincludes a plurality of wavelength conversion membersbundled together, each containing a dispersion medium and phosphor powder dispersed in the dispersion medium.

Wavelength conversion element and light source provided with same

Provided is a liquid crystal element of low drive voltage and high response speed. A liquid crystal element () includes a liquid crystal layer (), first and second electrodes (), a high-resistivity layer (), and an inorganic dielectric layer (). The first and second electrodes () are operable to apply voltage to the liquid crystal layer (). The high-resistivity layer () is interposed between either one () of the first and second electrodes () and the liquid crystal layer (). The inorganic dielectric layer () is interposed between the high-resistivity layer () and the liquid crystal layer ().

Liquid crystal element and cell for liquid crystal element

In the capillary tube,, the cross section of the outer surface is substantially square, and the cross section of the insertion hole,is substantially square. Sides La, Lb of the outer surface have high dimensional accuracy and the insertion hole,is made to allow two optical fibers,to be inserted while adjoining each other and arranged in order therein. The phases of the outer surface and the insertion hole,are relatively offset with each other, so that angles &thgr;a, &thgr;b which the sides,of the insertion hole,form with flat surfaces,of the outer surface are acute angles of substantially 45&deg;&plusmn;0.5&deg;. Consequently, the flat surface,becomes substantially parallel to the center line M that connects the centers of the cores,of the two optical fibers,inserted in the insertion hole,, and the flat surface,becomes substantially perpendicular to the center line M.

Optical fiber holding capillary tube

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Otsu, Japan

Yoshimasa Yamaguchi