Experimental Investigation on the Feasibility of Using a Fresnel Lens as a Solar-Energy Collection System for Enhancing On-Orbit Power Generation Performance

Table 2

Specification of commercial PMMA lenses.

Name	Convex Fresnel lens	Convex multiarray Lens
Material	PMMA (polymethyl methacrylate)
Transmission efficiency	92% (at 400–1100 nm)
Allowable service temperature	−70°C~80°C
Dimension	30 mm × 189 mm × 3 mm	30 mm × 189 mm × 5 mm
Focal length	182 mm	29.88 mm