Abstract: A photonic component that includes a photonically integrated chip and a fiber holder that is mechanically connected to said chip. The fiber holder includes at least one groove with an optical fiber laid therein. The chip includes a substrate whose substrate base material is a semiconductor material, an integrated optical waveguide that is integrated into one or more material layers of the chip, which layers are wave guiding and positioned on the substrate, a coupler formed in the optical waveguide or connected to said optical waveguide, particularly a grating coupler, and an optical diffraction and refraction structure that is integrated into one or more material layers of the chip which are positioned above the optical coupler when viewed from the substrate, and that shapes the beam prior to its being coupled into the waveguide or after being coupled out of the waveguide.

Abstract: An ambient light responsive switch for street lamps or other loads, includes a thermostatic switch of the thermal time delay relay type, connecting a load to a current source and exposed to a heater resistor and snap opening and closing at relatively high and low temperature values. An ambient light exposed photoconductor, a first resistor and the heater resistor are series connected across the current source, and the first resistor and a second resistor are series connected across the switch. With the closing of the switch in response to a low light value the load is energized and the resistance in series with the heater resistor is accordingly lowered to increase the heater current. With the opening of the switch in response to a high light value the load is deenergized and the resistance in series with the heater resistor is accordingly increased to decrease the heater current and reduce the sensitivity of the switch.