Abstract: The present invention relates controlling ratio of mixing hot and cold water of an electronic faucet by setting a mixing valve with an electronics actuator using two infrared sensors without touching to the faucet or its accessories. The system consists of two infrared sensors (IR), red and blue light emitting diodes, a mixing valve, an actuator, a temperature sensor and its display. When a user enters effective working range of the left or the right IR sensors the actuator actuate the mixing valve to change hot/cold water mixing ratio of the faucet. The IR sensors located on the left side of the faucet increase hot water ratio and IR sensor located on the right side of the faucet increase cold water ratio of the faucet when a user enters the effective working range of the IR sensors.

Abstract: Apparatus and method for measuring scatterer size in a dense media with only a single fiber for both light delivery and collection are disclosed. White light is used as a source and oscillations of the detected light intensities are measured as a function of wavelength. The maximum and minimum of the oscillations can be used to determine scatterer size for monodisperse distributions of spheres when the refractive indices are known. In addition several properties of the probe relevant to tissue diagnosis are disclosed including the effects of absorption, a broad distribution of scatterers, and the depth probed.

Abstract: This invention is a real-time non-invasive cancer diagnosis method, which is based on detecting morphological alteration of cancer cells in-vivo using elastic light scattering spectrum. An apparatus and method is developed for recording back-scattered light in a small angle range limited by numerical apparatus of a single fiber optical probe. The same optical probe is used to illuminate a tissue and to collect the light scattered back from the tissue. To test our system, we used five Balb/c mice that were injected EMT-6 mammary cells in breast region. We took spectra of the light scattered back from tumors and breast epithelial tissue on the mice. Average size of scatterers in tissue is estimated by fitting spectra of the back-reflected light to Mie theory.