Imec

Imec Vzw

Katholieke Universiteit Leuven

Spectricity

Imec Leuven

Andy Lambrechts

Geert Vanmeerbeeck

Richard Stahl

Luc Haspeslagh

Nicolaas Tack

Klaas Tack

Abdulkadir Yurt

Murali Jayapala

Bert Geelen

Ziduo Lin

Francky Catthoor

Xavier Rottenberg

Jonathan Borremans

Praveen Raghavan

Tom Claes

Dries Braeken

Veerle Reumers

Absar Javed

Pilar Gonzalez

Jerome Baron

Jasper Marien

A device for detecting particles in air; said device comprising:

Device for detecting particles including pollen in air using digital holographic reconstruction

The inventive concept relates to a collector for collecting particles in air and a device for detecting particles in air comprising said collector. Said collector comprises a substrate, which is adapted to enable imaging of the particles, an adhesive layer arranged on a collector side of the substrate, said adhesive layer being formed by an adhesive material. The collector further comprises a protection element, which is configured to protect the adhesive layer before collection of particles. The collector is configured to allow release of protection of the adhesive layer by the protection element to expose an adhesive surface of the adhesive layer to ambient air for collecting particles on the adhesive surface. The collector is further configured for presenting a particle sample carrier having a smooth top surface and a smooth bottom surface for preventing light from being diffusely scattered by the particle sample carrier.

Collector for collecting particles in air and a device for detecting particles in air

A method for calibrating an image sensor begins by illuminating a portion of the image sensor with an input light spectrum, where the input light spectrum includes light of known wavelength and intensity. The method continues by sampling an output for each optical sensor of the image sensor, where each optical sensor is associated with one or more optical filters and where each optical filter being associated with a group of optical filters of a plurality of groups of optical filters. Each optical filter of a group of optical filters is configured to pass light in a different wavelength range and at least some optical filters in different groups of the plurality of groups of optical filters are configured to pass light in substantially a same wavelength range. The method then continues by comparing a sampled output for each optical sensor of the plurality of optical sensors with an expected output and generating a calibration factor for each of at least a subset of the plurality of optical sensors and storing the generated calibration factors in memory.

Hyperspectral image sensor with calibration

Device and system for detecting particles in air

An example method and hyperspectral imaging (HSI) system for imaging a scene are provided. The method is for imaging the scene with the HSI system including a sensor with a plurality of sensor pixels and a plurality of spectral filters, each of the spectral filters being associated with one of the sensor pixels. The method comprises obtaining a higher-resolution spatial image by illuminating the scene with a first set of wavelengths, wherein each spectral filter passes the first set of wavelengths to the sensor pixel it is associated with. The method further comprises obtaining a lower-resolution hyperspectral image by illuminating the scene with a second set of wavelengths, wherein each spectral filter passes only a subset of the second set of wavelengths to the sensor pixel it is associated with.

Use of spectral leaks to obtain high spatial resolution information for hyperspectral imaging

An integrated circuit for an imaging system is disclosed. In one aspect, an integrated circuit has an array of optical sensors, an array of optical filters integrated with the sensors and configured to pass a band of wavelengths onto one or more of the sensors, and read out circuitry to read out pixel values from the sensors to represent an image. Different ones of the optical filters are configured to have a different thickness, to pass different bands of wavelengths by means of interference, and to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non-monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors.

Integrated circuit for spectral imaging system

A multimodal imaging system comprises a light source, an image sensor comprising a plurality of pixels, and an optical filter comprising a first filter element and a second filter element. The light source emits partially coherent polarized light, and the first filter element and second filter element are arranged as an array parallel to the image sensor. The first filter element is configured for attenuated transmission of a first light spectrum, which comprises polarized light emitted by the light source, and the second filter element is configured for transmission of a second light spectrum. The image sensor is configured to simultaneously capture light impinging on the image sensor from both the first filter element and the second filter element. Each filter element of the optical filter is configured for transmission of light to a subset of the imager pixels.

Multimodal imaging system

The present disclosure relates to devices and methods configured to perform drug screening on cells. At least one embodiment relates to a lens-free device for performing drug screening on cells. The lens-free device includes a substrate having a surface. The lens-free device also includes a light source positioned to illuminate the cells, when present, on the substrate surface with a light wave. The lens-free device further includes a sensor positioned to detect an optical signal caused by illuminating the cells. The substrate surface includes a microelectrode array for sensing an electrophysiological signal from the cells.

Method and device for drug screening

Embodiments described herein relate to a large area lens-free imaging device. One example is a lens-free device for imaging one or more objects. The lens-free device includes a light source positioned for illuminating at least one object. The lens-free device also includes a detector positioned for recording interference patterns of the illuminated at least one object. The light source includes a plurality of light emitters that are positioned and configured to create a controlled light wavefront for performing lens-free imaging.

Large area lens-free imaging device

A spectrometer module comprising a plurality of separate electronic circuit modules is disclosed. Each separate electronic module comprises an integrated sensor circuit including a light sensitive area occupying part of an area of the integrated sensor circuit, the integrated sensor circuit being arranged to detect incident light. In one aspect, the plurality of separate electronic circuit modules includes a group of adjacent electronic circuit modules. The light sensitive areas of the electronic circuit modules in the group are so arranged on the respective integrated sensor circuits that the group of adjacent electronic circuit modules is mounted so that the light sensitive areas thereof are arranged in vicinity to each other. The spectrometer module includes an optical module, which is common to said plurality of separate electronic circuit modules and arranged to direct incident light towards the light sensitive areas of each of said electronic circuit modules.

Spectrometer module

Embodiments described herein relate to lens-free imaging. One example embodiment may include a lens-free imaging device for imaging a moving sample. The lens-free imaging device may include a radiation source configured to emit a set of at least two different wavelengths towards the moving sample. The lens-free imaging device is configured to image samples for which a spectral response does not substantially vary for a set of at least two different wavelengths. The lens-free imaging device may also include a line scanner configured to obtain a line scan per wavelength emitted by the radiation source and reflected by, scattered by, or transmitted through the moving sample. The line scanner is configured to regularly obtain a line scan per wavelength. Either the radiation source or the line scanner is configured to isolate data of the at least two different wavelengths.

Apparatus and method for performing in-line lens-free digital holography of an object

A spectral camera for producing a spectral output is disclosed. The spectral camera has an objective lens for producing an image, a mosaic of filters for passing different bands of the optical spectrum, and a sensor array arranged to detect pixels of the image at the different bands passed by the filters, wherein for each of the pixels, the sensor array has a cluster of sensor elements for detecting the different bands, and the mosaic has a corresponding cluster of filters of different bands, integrated on the sensor element so that the image can be detected simultaneously at the different bands. Further, the filters are first order Fabry-Perot filters, which can give any desired passband to give high spectral definition. Cross talk can be reduced since there is no longer a parasitic cavity.

Growing community of inventors

Herent, Belgium

Andy Lambrechts