There's no need to buy an overpriced eyeglasses at the doctor's office when there are more convenient and affordable places to buy glasses online using insurance — just grab your prescription ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level ...

Optical spectroscopy encompasses a wide variety of techniques used to study how matter interacts with light. Optical spectroscopy techniques are used in physics, astronomy, chemistry, biology, and ...