Experts in LED lighting and concentration photovoltaic systems using the Simultaneous Multiple Surface method. Here are examples of our recent work.
LPI's RXI™ free-form optics, used on the Acura RXL provide superior efficiency and beam control in a very compact package. The design software is an implementation of the LPI-patented 3D SMS Method. LPI has designed several automotive applications .
The Shell Mixer is placed over an RGB or RGBW source and produces perfect color mixing without compromising collimation. The étendue increase is negligible and the lens diameter is only three times that of the source. Optical efficiency is >90%.
LPI specializes in remote phosphor lighting application. This A19 lamp provides superior illumination uniformity with only 4 LEDs. The unique, patented approach offers improved thermal performance and efficiency. The phosphor is contained in a silicone sphere permitting higher temperature applications, such as use inside a glass globe.
In partnership with Evonik, the Ventana™ Optical Train is now available to the CPV industry without the high tooling cost and long lead times that developing these optics represents. This optic set is available off-the-shelf and has delivered above 32% module efficiencies for integrators.
The Simultaneous Multiple Surface (SMS) Design Method is a quick way to design nonimaging optics. To help educate those interested in the method, LPI has prepared a simple program to design a refractive lens. The package comes with C source code, a compiled version, and an introductory document describing the SMS method. Click Here to download the software package.
This custom optical design satisfies Kichler's demands for high efficiency, with a unique thermal solution. Most of the LED light exits directly from the lamp without the added losses passing through a lens or off a reflector. The LEDs are placed direcly adjacent to the outside of the housing for cooler operation.