Sando, Yusuke
Satoh, Kazuo
Kitagawa, Takahiro
Kawamura, Makoto
Barada, Daisuke
Yatagai, Toyohiko
Funding for this research was provided by:
Japan Society for the Promotion of Science (JP15K21699)
Article History
Received: 13 February 2018
Accepted: 18 July 2018
First Online: 27 July 2018
Competing Interests
: A patent on the use of a convex parabolic mirror for wide viewing zone was filed by Y.S., K.S., T.K. and M.K. and it is pending in Japan. The patent number is 2017-054411.