A narrow-band filter for absorbing radiation at a wavelength in the range of 9.2 to 10.8 microns and for transmitting radiation in a surrounding 8 to 12 micron band having a high transmission ratio. The filter is comprised of a pure or mixed alkali-halide crystal having optical incidence and transmission surfaces and thiocyanate or borofluoride as an impurity.
申请公布号
NO850893(A)
申请公布日期
1985.03.06
申请号
NO19850000893
申请日期
1985.03.06
申请人
BARNES ENGINEERING COMP,
发明人
MOORE, JAMES E.,;KALE, MICHAEL B.,;CSANAK, GEORG,;LUTY, FRITZ,