Beschreibung:
A 255 picture element imaging device for astronomical applications in the J and K atmospheric windows (1.5- to 1.8-μ and 2.0- to 2.4-μ wavelength, respectively) is described. Spatial information is optically encoded and detected by a LN2-cooled detector. Electronic decoding is achieved during measurement by means of a special purpose computer. Under seeing and scintillation noise limited conditions a multiplex advantage of a factor of 8 is attained.