Standard nonimaging components used to collect and integrate light in light-emitting-diode-based projector light engines such as tapered rods and compound parabolic concentrators are compared to optimized freeform shapes in terms of transmission efficiency and spatial uniformity. We show that the simultaneous optimization of the output surface and the profile shape yields transmission efficienc...

CPC solar collectors are a combination of new technologies that make it possible to generate heat from radiant energy by transferring between the absorber and fluid. This study was performed based on transfer equations proposing mathematical model, as reported in literature. A compound parabolic concentrators collector (CPC) numerical model simulated coded Aspen HYSYS MATLAB software validated ...

We present the design of an original secondary cavity for use in Small-Scale Fresnel Reflectors photovoltaic applications. The is similar to classical V-trough, but primary reflector system configured so that there are two focal points on aperture. rays coming from each side reach opposite cavity, producing a non-symmetrical distribution irradiance. This modifies acceptance half-angle and allow...

We present a cost-effective concentrating photovoltaic system composed of a prism and a compound parabolic concentrator (P-CPC). In this approach, the primary collector consists of a prism, a solid compound parabolic concentrator (CPC), and a slab waveguide. The prism, which is placed on the input aperture of CPC, directs the incoming sunlight beam to be parallel with the main axes of parabolic...

Achieving a high conversion efficiency into relativistic electrons is central to short-pulse laser application and fundamentally relies on creating interaction regions with intensities ${\gg}10^{18}$~W/cm$^2$. Small focal length optics are typically employed achieve this goal; however, solution impractical for large kJ-class systems that constrained by facility geometry, debris concerns, compon...