Osram Opto Semiconductors Gmbh

Dirk Sossenheimer

Hubert Halbritter

Michael Schumann

Christian Müller

Klaus Hohn

Klaus HÖHN

A method of operating an optoelectronic proximity sensor including a radiation-emitting component, a radiation-detecting component and a control unit includes: operating the radiation-emitting component with a pulsed current, wherein the pulsed current of the radiation-emitting component has an on time and an off time during a measurement period, and causing the control unit to evaluate a detector signal of the radiation-detecting component during the on time and ending the on time if the detector signal exceeds a threshold value, wherein the ratio of the on time to the measurement period is less than 1/10.

Method for operating an optoelectronic proximity sensor and optoelectronic proximity sensor

Fluctuation frequency (F) of an ambient light (S) is identified by: A) specifying first frequency (F) and second frequency (F), higher than said first frequency; B) measuring an optical power of the ambient light with a signal receiver () over a measuring time interval (Ti) during a total measuring time (T), which is shorter than or equal to a first cycle duration (P) belonging to the first frequency; C) detecting the optical power of the ambient light in a time series over the total measuring time; D) determining at least one detection feature for identifying the fluctuation frequency by evaluating the time series; and E) identifying the fluctuation frequency of the ambient light as the first frequency or as the second frequency using the at least one detection feature.

Method and semiconductor component for identifying ambient light fluctuations

Composition for producing a filter material for radiation includes a silicone and at least one dye dispersed in the silicone, wherein the composition has a relative transmission of less than 20% for radiation of the wavelength of 400 nm to 700 nm, and has a relative transmission of greater than 50% for radiation of the wavelength of 850 nm to 1025 nm.

Composition for producing a filter material for radiation, method for producing a composition for a filter material, material for filtering radiation, and an optoelectronic device comprising the material

Growing community of inventors

Wuppertal, Germany

Dirk Sossenheimer