Freeform optics is the next-generation of modern optics, bringing advantages of excellent
optical performance and system integration. It finds wide applications in various fields, such …

Abstract 3D printing belongs to the emerging technologies of our time. Describing diverse
specific techniques, 3D printing enables rapid production of individual objects and creating …

Concentrating technology is long established in the field of solar thermal applications.
However, there is still scope for improvement due to innovation in design, materials and …

A solar thermal concentrator system is proposed comprising a cylindrical heat-pipe receiver
and a variable-focus-parabolic-trough (VFPT) reflector in which the focal length varies as a …

The compound parabolic concentrator (CPC) is a core technology in the field of solar
concentration. Nevertheless, it only has one degree of freedom in the choice of its half …

This study proposes a free-form (FF) surface creation (FFSC) method to optimize the profile
of a FF solar concentrator such that each incident ray is directed to a user-specified point on …

We describe an analytical and numerical method to design and optimize LED (light-emitting
diode) collimators. The optimization process is confirmed by optical simulations and …

Nonimaging optics is a field devoted to the design of optical components for applications
such as solar concentration or illumination. In this field, many different techniques have been …

A solar thermal concentrator system is proposed comprising a free-form-trough (FFT)
reflector and a cylindrical heat-pipe receiver. The profile of the reflector is designed using a …

We present a family of three-dimensional concentrators constructed from the photic field
generated by a Lambertian emitter. The profile of these concentrators is obtained from the …