???? ??????????????? ???????? ???
?????? ???
???????? ???? ????
?? ????
??? ??????
?7 ??? 300
??????????
?? ????? ????? ???
????? ??? ?????? ?? ????? ??? ??????(infrared) ???? ?????? ??? ????? ?? ??? ??? (wavelength) ??? ??? ?? ??? ??? ???? ????? ????? ?? ??? ??? ???? ?????? 400 (????) ???? 700
????????
(???) ?? ???? ??? ????? ???? ???? ?????? ????? ?? ??? ??? 700 ???????? ???? ????? ???
??? ???
(microwave) ???? ?? ????? ?? ???? ??? ?????? ??????? ????:?? ???? ???? ?? ???? ??????? ??? ??? ??? ??? ???? ??? ???? ?????
??? ?????
[
?????
]
