Sun following-up device for solar heat utilization apparatus

摘要

A sensor device for a sun following-up mechanism of a solar energy collector comprises a hollow cylindrical member (2), a fish eye lens unit (1,1') on the top of said cylindrical member, a series of vertically spaced lenses (3,4,5,) positioned within said cylindrical member, a casing positioned on the bottom of said cylindrical member, a screen glass (8) positioned within said casing for forming an image thereon, a pair of spaced diffusion glasses (9,9') positioned on the undersurface of said screen glass to define a slit (11) between the opposing faces thereof, a pair of photosensitive cells (10,10') positioned on the undersurface of said diffusion glasses, optical fibers (13, 13') having ends received in said slit leaving a clearance between the ends and a pair of photosensitive cells (14, 14') coupled to said optical fibers.