From January to July, 98 tungsten enterprises in Jiangxi Province, accounting for 1.35% of the province's industrial enterprises; main income of 10.368 billion yuan, an increase of 46.23%, accounting for 1.49% of the province's industrial income; profit of 543 million, an increase of 64.71%, accounting for the entire Provincial industry 1.54%; tax 409 million, an increase of 25.67%, accounting for 1.42% of the province's industry.

From January to July, there were 51 rare earth enterprises in Jiangxi Province, accounting for 0.68% of the province's industry; the main income was 6.771 billion yuan, up 76.7% year-on-year, accounting for 0.97% of the province's industrial income; the profit was 517 million, an increase of 547.9% year-on-year, accounting for the province. 1.47%; tax 456 million, an increase of 9% year-on-year, accounting for 1.59% of the province's industry.

Infrared Window

Windows are desiged for use in optical systems to separate two enviroments while passing a particular spectral range between them.Applications include laser set-ups (e.g.at Brewster's angle),emitter,detector protection devices, such as in sepctrophotometers and imaging systems.

China Star Optics offers all types of windows made from different materials. Such as N-BK7, Fused silica, sapphire,CaF2, Silicon, Borofloat, high borosilicate glass and other optical glass supplied by Schott and Chinese CDGM are available upon request. Windows at shape of round,quadrate, triangular or other polygonal are also available upon request.In addition, we provide a variety of single layer or multiplayer anti-reflecting coating,HR,PR coatings on Optical Windows.

CAF2 Curve


magnesium fluoride


Zinc Sulfide cleartran uncoated

Specification of our optical windows as follow:
*Material:high borosilicate glass, BK7,UV-grade fused silica (JGS1) or other optical crystals materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%

Infrared Window,Zinc Selenide Windows,Znse Wedged Window,Zinc Selenide Laser Window

China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com