Following patents are invented by Dr. Pei, they are just a small part of his achivements.

US Patent No. 3952724

ABSTRACT

The disclosed invention relates to a solar energy collector in a conversion system. The collector is made from common glass tubing lengths of different diameters and comprises a first outer clear glass cylinderical tube having approximately a semi-cylinder surface portion mirror coated for reflection and a collector tube inside the first tube having an energy absorbing coatings on its exterior surface.

US Patent No. 4043318

US Patent No. 4048982

ABSTRACT

The disclosure relates to a bulb-type solar energy collector device comprising a hollow glass body sharped with a parabolic interior surface that is coated with specular finish of a metal, e.g. silver, and includes an apex aperture and intergral hollow yoke.