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美國Asahi Spectra Co.,Ltd. (ASC) 
美國Asahi Spectra公司 主要產品：· 氙燈光源· LED分析儀
Asahi Spectra Co.,Ltd. (ASC) was founded in 1970 in Tokyo, Japan by 3 engineers. ASC has been developing a vacuum deposition technology such as ion assisted deposition (IAD) and ion beam sputtering (IBS) , which achieve hard coating, excellent durability for environment (humidity, low or high temperature, thermal shock or vacuum) and stability of spectral performance. By now our optical filters have contributed in various markets such as astronomy, semiconductor, biotechnology, education and so on.

Nowadays, customer requirements are becoming more complicated as optical innovation advances, and most requirements can not be satisfied by just optical filter technology. So we have been trying to expand our field to optical instruments based on our 30 years accumulated optical know-how as you can see how professional our optical instruments are.

Our integrated manufacturing process by both filter and instrument specialists is the most competitive advantage against "other only-optical-filter makers".

Asahi Spectra USA Inc. was established in January, 2005 in California where is the west center of optical market in USA, in order to distribute Asahi Spectra brand in USA and all over the world.