Glint is an early-stage startup company developing advanced optical devices based on reactive optics and materials with optical properties that adjust automatically to solar incidence. The firm is developing an automatic light-tracking optical device with an application to light concentration and collection. This device acts as a solar concentrator that can capture the full amount of available sunlight regardless of the sun's position. Unlike other technology with similar applications, this concentrator does not require complex moving parts to track the sun's movements. Glint's inexpensive design uses an automatic optical system of fluid layers that adjust their positions in response to solar heat. The company's unique technology platform uses embedded liquids as responsive and configurable optical components that can be actuated on the micro-scale, enabling new optical capabilities and miniaturized devices.