Home
Optical Filters
Optical Instruments
News
International Agency
About Us

News

February 29, 2016

The new u

The new u' band filter for the One Degree Imager

Asahi was successful in coating the large 445 mm x 428 mm u' band filter for the One Degree Imager in last November.
It was safely delivered and installed in the One Degree Imager at WIYN Observatory in Arizona.
Though u' band filter is the hardest of other broad bandpass especially in large size, it meets all the requirements
completely by WIYN Consortium.