Ci Systems (israel) Ltd.

Applied Spectral Imaging Ltd.

Ci Systems Ltd.

Moshe Lavi

Dario Cabib

Robert A Buckwald

Amir Gil

Liviu Singher

Yuval Garini

Nir Katzir

David Wine

Dirk G Soenksen

Kurt Weiser

Dirk G Soeknsen

Arnold Daniels

Ziv Attar

An optical device includes two prisms and a beamsplitter configuration. A first of the prisms has a first surface associated with a source and a second surface oblique to the first surface. A second of the prisms has a first surface associated with a detector and a second surface oblique to the first surface. The second surface of the first prism overlaps with the second surface of the second prism to define an interface region that partially extends along at least one of the second surfaces. The prisms are optically attached at the interface region, and the beamsplitter configuration overlies the interface region. A beam emitted by the source propagates through the prisms along two optical paths and reaches the detector as two coherent beams. Beams that propagate along the two optical paths are reflected from the beamsplitter configuration and transmitted by the beamsplitter configuration exactly once.

Generally V-shaped interferometer formed from beamsplitter deployed between geometrically similar prisms

Generally v-shaped interferometer formed from beamsplitter deployed between geometrically similar prisms

A method reduces drift induced by environment changes when imaging radiation from a scene in two wavelength bands. Scene radiation is focused by two wedge-shaped components through a lens onto a detector that includes three separate regions. The wedge-shaped components are positioned at a fixed distance from the lens. The radiation from the scene is imaged separately onto two of the detector regions through an f-number of less than approximately 1.5 to produce a first pixel signal. Imaged radiation on each of the two regions includes radiation in one respective wavelength band. Radiation from a radiation source is projected by at least one of the wedge-shaped components through the lens onto a third detector region to produce a second pixel signal. The first pixel signal is modified based on a predetermined function that defines a relationship between second pixel signal changes and first pixel signal changes induced by environment changes.

Drift correction method for infrared imaging device

Devices image radiation from a scene that includes two materials with spectral characteristics in two different wavelength regions. A lens forms an image of the scene on a detector that includes an array of elements. A filtering arrangement integrated with the detector allows half of the detector elements to detect radiation in one of the wavelength regions and the other half of the detector elements to detect radiation in the other wavelength region. Each detector element can be constructed from two different sub-elements that are sensitive to radiation in one of the respective wavelength regions. A blackbody source positioned within the devices reduces drift induced by changes to the environment surrounding the devices. The blackbody source projects radiation onto a region of the detector that does not receive radiation from the scene. Pixel signals produced from the scene radiation are modified based on pixel signals produced from the blackbody.

Single device for gas and flame detection, imaging and measurement, and drift correction method thereof

A device images radiation from a scene. The scene can include two materials with spectral characteristics in different radiation wavelength regions. A static filtering arrangement includes two filters with different passbands corresponding to the two wavelength regions. An image forming optic forms an image of the scene on a detector. The radiation from the scene is imaged simultaneously through an f-number of less than 1.5 onto two detector pixel subsets. The imaged radiation on one pixel subset includes radiation in one wavelength region. The imaged radiation on the other pixel subset includes radiation in the other wavelength region. Electronic circuitry produces a pixel signal from each detector pixel. The pixel signals include information associated with absorption or emission of radiation in one of the respective wavelength regions by the two materials. The electronic circuitry determines the presence or absence of each of the two materials based on the pixel signals.

Single device for gas and flame detection, imaging and measurement

A device images radiation from a scene in two wavelength bands. An uncooled detector of the radiation includes two separate detector regions. A first filter associated with the first detector region allows radiation in a first wavelength band to be imaged on the first detector region. A second filter associated with the second detector region allows radiation in a second wavelength band to be imaged on the second detector region. An image forming optical component forms an image of the scene on the detector. Two wedge-shaped components are positioned at a fixed distance from the image forming optical component. Each wedge-shaped component directs radiation from the scene through the image forming optical component onto the detector. The radiation is imaged separately onto the two detector regions through an f-number of less than approximately 1.5. Imaged radiation on each detector region includes radiation in one respective wavelength band.

Dual spectral imager with no moving parts

A device, for imaging a scene, includes a detector of the radiation that includes a plurality of detector elements, a circularly variable filter, a mechanism for rotating the filter perpendicular to the optical path of the radiation from the scene to the detector, and a data capture apparatus. All the detector elements are repeatedly interrogated by as a group as the filter rotates, to acquire images of the scene, each of which includes a plurality of image portions in respective spectral bands of the filter. The image portions are assembled to form processed images, each of which depicts the scene in a single respective spectral band.

Room-temperature filtering for passive infrared imaging

A device, for imaging infrared radiation from a scene, includes a detector of the infrared radiation, an enclosure for keeping the detector at an operating temperature thereof, an optical system, outside the enclosure, for focusing the infrared radiation onto the detector via a window of the enclosure, and a filter. In one embodiment, the filter is positioned at an intermediate focal plane of the optical system. In another embodiment, the filter is on a surface of an optical element of the optical system and has a defocusing relationship to the detector.

An apparatus for depositing annular or circular wedge coatings with arbitrary dependence of thickness versus position includes a coating tool in which at least one substrate is disposed in a line of sight arrangement vs. least one deposition source, each substrate having an axis of symmetry and associated with a single mask having an aperture and positioned between the substrate and the least one deposition source, the mask and the substrate arranged to perform a relative rotation around a common axis to follow a law of motion which results in the deposition of a coating with a desired law of variation of thickness vs. position on the circumference of the substrate. The relative rotation is imparted by a motor. In embodiments in which there are a plurality of substrates and associated single masks, the substrates are positioned on a planet carrier independently rotatable by another motor.

Apparatus, tool and methods for depositing annular or circular wedge coatings

A color display comprising an image of all chromosomes or portions of chromosomes of a cell, each of the chromosomes or portions of chromosomes being painted with a different fluorophore or a combination of fluorophores, the image presenting the chromosomes or portions of chromosomes in different distinctive colors, wherein each of the chromosomes or portions of chromosomes is associated with one of the different distinctive colors.

Color display of chromosomes or portions of chromosomes

A fluorescent in situ hybridization method comprising the steps of (a) providing a cell nuclei having chromosomes hybridized with at least one nucleic acid probe including at least one nucleic acid molecule labeled with at least one fluorophore; (b) viewing the cell nuclei through a fluorescence microscope optically connected to an imaging spectrometer for obtaining a spectrum of each pixel of the cell nuclei by (i) collecting incident collimated light simultaneously from all pixels of the cell nuclei; (ii) passing the incident collimated light through an interferometer system so that the light is first split into two coherent beams and then recombine to interfere and form an exiting light beam; (iii) focusing the exiting light beam on a detector having an array of detector elements, so that at each instant each of the elements is the image of one and always the same pixel for the entire duration of the measurement and so that each of the elements produces a signal which is a particular linear combination of light intensity emitted by the pixel at different wavelengths; (iv) rotating or translating one or more of the elements of the interferometer, so that the optical path difference is scanned simultaneously for all the pixels of the cell nuclei; and (v) recording signals of each of the detector elements as function of time using a recording device to form a first spectral cube of data; and (c) interpreting the first spectral cube of data using a mathematical algorithm.

Method for simultaneous detection of multiple fluorophores for in situ

Boresighting apparatus includes a laser, a thermal target having an absorbent surface for receiving the laser beam and converting it to a heat spot of infrared radiation, and an optical device for receiving and optically displaying the heat spot. The thermal target is anisotropic, having a low thermal conductivity in the direction laterally of the surface and a high thermal conductivity in the direction perpendicular to the surface, so as to increase the duration of the heat spot with a minimum lateral spreading.

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Nofit, Israel

Moshe Lavi