A light inspection system and method of the surface and inside of a sample. The system includes a light source generating a light beam to impinge on a sample; an imaging system obtaining an image of said sample and including a parabolic mirror with a hole to allow the passage of the light beam towards the sample, and the redirection of a scattered light component of the sample towards a light capturing unit comprising a bundle of bifurcated fibers; the bundle of fibers having a central fiber and external fibers, the central fiber receiving scattered light from the surface and the external fibers receiving scattered light from inside the sample; a measuring system measuring a power and/or a spectrum collected in the central and the external fibers.

A device for measuring an ionic concentration of an ionic compound in a porous medium solution contained in a porous medium. The device includes a sensing portion, a light source, and a light sensor. The sensing portion is miniaturized and includes a permeable material body defining a measuring cavity therein and is insertable in the porous medium to allow the porous medium solution to diffuse through the permeable material body. The light source illuminates the porous medium solution contained inside the measuring cavity. The light sensor detects a resulting light emanating from the porous medium solution, the resulting light having at least one spectral characteristic indicative of the ionic concentration of the ionic compound in the porous medium solution. There is also provided a method for measuring in situ an ionic concentration of an ionic compound in a porous medium solution contained in a porous medium.

A light inspection system and method of the surface and inside of a sample. The system includes a light source generating a light beam to impinge on a sample; an imaging system obtaining an image of said sample and including a parabolic mirror with a hole to allow the passage of the light beam towards the sample, and the redirection of a scattered light component of the sample towards a light capturing unit comprising a bundle of bifurcated fibers; the bundle of fibers having a central fiber and external fibers, the central fiber receiving scattered light from the surface and the external fibers receiving scattered light from inside the sample; a measuring system measuring a power and/or a spectrum collected in the central and the external fibers.

A system including a light source, sampling tray, and a plurality of fiber optics positioned to achieve high contrast to improve accuracy and eliminate the need to rotate the sample. A composite light image from the fiber optics is fed to a spectrometer which converts the reflected light into a fingerprint corresponding to the concentration of at least one substance in the sample. The fingerprint is processed by a statistical model to determine concentration level of the at least one substance in the sample and the concentration level is then displayed.

A system for determining parameters of a cloud atmosphere within a wind tunnel. The system includes: a light projector configured to project a pulse of light energy into a projection field of view; at least one light detector having a detection field of view that forms a range-limited intersection with the projection field of view, the range-limited intersection having a maximum sampling range so as to exclude wall structures of the wind tunnel, wherein the at least one light detector is configured to detect a backscattered portion of the projected pulse of light energy backscattered from within the range-limited intersection; and a cloud parameter calculator configured to determine parameters of the cloud atmosphere based on the backscattered portions detected.

A combined capability sensor includes a first laser source and a second laser source. The first laser source is configured to emit light having a wavelength in at least one of an infrared spectrum and a visible spectrum and the second laser source is configured to emit light having a wavelength in a blue or ultraviolet spectrum. A director is configured to direct the first and second laser source to a detection zone. A first sensor is configured to detect scattered light originating from the first laser source, thereby detecting a presence of smoke in the detection zone. A second sensor is configured to detect fluoresced light originating from the second laser source, thereby detecting a presence of a biological agent in the detection zone.

A method of illuminating and extracting scattered and transmitted light from a liquid within a sealed glass bottle, the method comprising initiating transmission of an incident light beam from a light source to the sealed bottle, directing the incident light beam to totally internally refract within a wall of the sealed bottle and thereby cause an evanescent wave within the liquid to generate scattered or absorbed light, receiving the scattered or absorbed light from the liquid contained in the sealed bottle, and processing one or more signals representative of the scattered or absorbed light, the signals indicative of one or more molecules indicative of a characteristic being present in the liquid contained in the sealed bottle.

The present disclosure provides systems and methods for characterizing and monitoring biological material. In one aspect, a method for characterizing biological material includes acquiring optical data associated with a biological material, and analyzing the optical data to determine optical properties of the biological tissue. The method also includes determining, using the optical properties, phase information corresponding to the biological material, and generating a report characterizing the biological tissue using at least the phase information.

The present invention relates to a method for in situ sensing of water stress in a plant by contacting a plant with a biosensor, where the biosensor comprises a material capable of giving a detectable response to changes in local water potential in the plant and detecting the detectable response thereby sensing water stress in the plant. The invention further relates to a method for determining water potential in a substance, a biosensor, a system for determining water potential in a substance, a method for determining water potential in a substance, a water potential measurement computing device, and a non-transitory computer readable medium having stored thereon instructions for determining water potential in a substance.

A color imaging system and method, the method comprising, for a plurality of predetermined wavelength bands of illumination, calculating weight coefficients representing the contribution of each of the wavelength bands to a specific color space, individually controlling illumination intervals of each of a plurality of illumination sources, wherein each of the illumination sources is configured to provide illumination via a waveguide in a different predetermined narrow band of wavelengths, controlling an image sensor to capture a set of monochromatic image frames synchronously with the illumination intervals, receiving a set of the captured monochromatic image frames, and generating color image data by calculating a combination of the set of image frames, each weighted by the corresponding coefficient.