Patent classifications
G01J1/22
Optoelectronic sensor device and method to operate an optoelectronic sensor device
An optoelectronic sensor device and a method for operating an optoelectronic sensor device are disclosed. In an embodiment the optoelectronic sensor device includes a radiation-emitting semiconductor chip configured to emit radiation with a peak wavelength which depends on a temperature of the radiation-emitting semiconductor chip. The sensor device further includes a sensor chip configured to detect a part of the radiation reflected back to the sensor chip as well as a spectral filter component having an adjustable spectral transmission range. A wavelength determination unit is configured to determine the peak wavelength and a filter driver is configured to adjust the spectral transmission range to the determined peak wavelength.
Optoelectronic Sensor Device and Method to Operate an Optoelectronic Sensor Device
An optoelectronic sensor device and a method for operating an optoelectronic sensor device are disclosed. In an embodiment the optoelectronic sensor device includes a radiation-emitting semiconductor chip configured to emit radiation with a peak wavelength which depends on a temperature of the radiation-emitting semiconductor chip. The sensor device further includes a sensor chip configured to detect a part of the radiation reflected back to the sensor chip as well as a spectral filter component having an adjustable spectral transmission range. A wavelength determination unit is configured to determine the peak wavelength and a filter driver is configured to adjust the spectral transmission range to the determined peak wavelength.
DISPLAY AND A LIGHT SENSOR OPERABLE AS AN INFRARED EMITTER AND INFRARED RECEIVER
Presented here is a system to record high-resolution infrared images without the need to include additional stand-alone sensors into the mobile device. According to one embodiment, an organic light emitting diode (OLED) display is modified to emit IR and near-IR light in a large field. The modified display allows for depth sensing and infrared imaging without a stand-alone emitter. Additionally, an IR shutter filter can be applied to the existing front facing red, green, blue (RGB) camera that would only be in place when the display is in IR emission mode. The combination of these two technologies allows a facial recognition system using existing hardware, and not require additional sensors or emitters to achieve face recognition.
DISPLAY AND A LIGHT SENSOR OPERABLE AS AN INFRARED EMITTER AND INFRARED RECEIVER
Presented here is a system to record high-resolution infrared images without the need to include additional stand-alone sensors into the mobile device. According to one embodiment, an organic light emitting diode (OLED) display is modified to emit IR and near-IR light in a large field. The modified display allows for depth sensing and infrared imaging without a stand-alone emitter. Additionally, an IR shutter filter can be applied to the existing front facing red, green, blue (RGB) camera that would only be in place when the display is in IR emission mode. The combination of these two technologies allows a facial recognition system using existing hardware, and not require additional sensors or emitters to achieve face recognition.
DISPLAY AND A LIGHT SENSOR OPERABLE AS AN INFRARED EMITTER AND INFRARED RECEIVER
Presented here is a system to record high-resolution infrared images without the need to include additional stand-alone sensors into the mobile device. According to one embodiment, an organic light emitting diode (OLED) display is modified to emit IR and near-IR light in a large field. The modified display allows for depth sensing and infrared imaging without a stand-alone emitter. Additionally, an IR shutter filter can be applied to the existing front facing red, green, blue (RGB) camera that would only be in place when the display is in IR emission mode. The combination of these two technologies allows a facial recognition system using existing hardware, and not require additional sensors or emitters to achieve face recognition.
Flexible beam delivery system for high power laser systems
A beam delivery technology for high power laser systems, like laser peening systems, for work pieces which may have compound curvatures, includes placing an optical assembly having a receiving optic, beam formatting optics and a scanner mounted thereon, in a position to receive laser pulses from a laser source and within an operating range of the process area. Polarized laser pulses are delivered to the receiving optic while the position of the optical assembly remains unchanged. The pulses proceed through the beam formatting optics to the scanner, and are direct to respective impact areas having nominal shapes and locations on the work piece. The scanning process includes for each laser pulse, setting direction, divergence, polarization, rotation and aspect ratio of the laser pulses output from the scanner, to control the polarization, shape and location on respective impact areas.
Flexible beam delivery system for high power laser systems
A beam delivery technology for high power laser systems, like laser peening systems, for work pieces which may have compound curvatures, includes placing an optical assembly having a receiving optic, beam formatting optics and a scanner mounted thereon, in a position to receive laser pulses from a laser source and within an operating range of the process area. Polarized laser pulses are delivered to the receiving optic while the position of the optical assembly remains unchanged. The pulses proceed through the beam formatting optics to the scanner, and are direct to respective impact areas having nominal shapes and locations on the work piece. The scanning process includes for each laser pulse, setting direction, divergence, polarization, rotation and aspect ratio of the laser pulses output from the scanner, to control the polarization, shape and location on respective impact areas.
BURNOUT PROTECTION FOR OPTICAL SENSORS
A method and apparatus for protecting an optical sensor is disclosed. A fixed filter having a fixed passband for light transmission is placed in front of the optical sensor. A programmable filter having a variable passband for light transmission is placed in front of the fixed filter. A controllable voltage source controls a voltage at the programmable filter that shifts the passband of the programmable filter from a first state in which the passband of the programmable filter is substantially the same as the passband of the fixed filter and a second state in which the passband of the programmable filter is different than the passband of the fixed filter.
Variable modulation of radiation and components
Various embodiments include systems and methods to provide selectable variable gain to signals in measurements using incident radiation. The selectable variable gain may be used to normalize signals modulated in measurements using incident radiation. The selectable variable gain may be attained using a number of different techniques or various combinations of these techniques. These techniques may include modulating a modulator having modulating elements in which at least one modulating element acts on incident radiation differently from another modulating element of the modulator, modulating the use of electronic components in electronic circuitry of a detector, modulating a source of radiation or combinations thereof. Additional apparatus, systems, and methods are disclosed.
Variable modulation of radiation and components
Various embodiments include systems and methods to provide selectable variable gain to signals in measurements using incident radiation. The selectable variable gain may be used to normalize signals modulated in measurements using incident radiation. The selectable variable gain may be attained using a number of different techniques or various combinations of these techniques. These techniques may include modulating a modulator having modulating elements in which at least one modulating element acts on incident radiation differently from another modulating element of the modulator, modulating the use of electronic components in electronic circuitry of a detector, modulating a source of radiation or combinations thereof. Additional apparatus, systems, and methods are disclosed.