Rainlight Corporation is a professional Precision Optics and Optoelectronics products and solutions provider, with subsidiary company Gous USA Inc. and subsidiary brand Foreverlight.

Rainlight brand offers both standard off-the-shelf and Customized Precision Optical Components such as Color Filter Glass, Optical Lenses, Mirrors, Beamsplitters, Windows, Prisms, Off-Axis Parabolic (OAP) mirrors, Gradient-Index (GRIN) lenses, Large Diamond Turning optics, MLA (Micro Lens Array), Sapphire and SiC material components, diffraction gratings substrates etc.

Gous USA brand offers Schott Zerodur and Corning 7980 Fused Silica unfinished rough grind to polished uncoated optical substrates. Gous USA also offer a variety of configurable Optoelectronics Modules for numerous analytical instruments and IVD equipment applications.

Foreverlight brand offers an extensive Spectrometer product line, including fiber coupled miniature spectrometers and Raman systems, as well as all accessories to provide our customers support from scientific applications to total OEM solutions.