摘要:
Systems and methods for determining a position of an object are provided by the present invention. Light is captured by at least one collector. Each collector has a first opening through which light enters that is larger than a second opening through which light exits. The exiting light is used by at least one light detector to generate signals. The position of the object is determined based upon the generated signals.
摘要:
A lighting apparatus includes a source of light of a first spectral characteristic, a reflector or a diffusely reflective chamber or cavity having a transmissive optical passage, and a liquid containing quantum dots. The quantum dots provide a wavelength shift of at least some light emitted by the source of light to produce a desired second spectral characteristic in the light output.