Temperature compensating member and optical communication...

Details Temperature compensating member and optical communication... Temperature compensating member and optical communication...

G - Physics

02

B

G02B 6/00 (2006.01) C01B 33/12 (2006.01) C01B 33/26 (2006.01) C03C 10/00 (2006.01) G01N 23/20 (2006.01) G02B 6/10 (2006.01) G02B 6/36 (2006.01)

Patent

CA 2378077

A material for temperature compensation comprises a polycrystalline material containing a solid solution of .beta.-quartz or .beta.-eucryptite as a main crystal, and it has a negative coefficient of thermal expansion. The interplanar spacing of crystal planes giving a main peak in X-ray diffractometry is less than 3.52 angstroms.

L'invention concerne un matériau de compensation de température comprenant un matériau polycristallin contenant une solution solide de .beta.-quartz ou de .beta.-eucryptite en tant que cristal principal, et possède un coefficient de dilatation thermique négatif. L'espacement entre les plans du cristal produisant une crête de diffractométrie des rayons X est inférieur à 3,52 angströms.

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