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 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.

An apparatus for the high throughput measurement of optical properties of liquid samples placed into the wells of a multiwell plate is disclosed. An optical fiber within a fiber bundle containing no corrective optics between the fiber ends and the well plate bottom illuminates the sample in order to induce fluorescence, and multiple fibers collect emission radiation and transmit it to a fluorescence detector such as a spectrometer. Other embodiments involve a light scattering illumination source with detection fibers located in either the same bundle containing the fluorescence monitoring fibers or an independent light scattering detection bundle for the measurement of static and/or dynamic light scattering. Some embodiments of the invention permit the measurement of phase analysis light scattering. Thus the measurement of multiple optical properties of a liquid sample may be made simultaneously or in succession. A method for these measurements is also disclosed.

An in-situ photocatalysis monitoring system based on surface-enhanced Raman Scattering (SERS) spectroscopy. The monitoring system may include a Raman excitation light source, a laser coupling lens, a narrow band filter, a total reflection mirror, a dichroic mirror, a focusing coupling lens, a SERS optical fiber probe, a liquid phase photocatalysis reactor, a photocatalytic light source, a Raman collection lens, and a spectrometer. A first furcation part and a second furcation part each extend from one end of a common detection part of the SERS optical fiber probe; an extending end of the first furcation part is coupled with the focusing coupling lens; an extending end of the second furcation part is coupled with the photocatalytic light source; and the other end of the common detection part is arranged inside the liquid phase photocatalysis reactor. Raman excitation light and photocatalytic light may be transmitted on a common channel.

An apparatus for the high throughput measurement of optical properties of liquid samples placed into the wells of a multiwell plate is disclosed. An optical fiber within a fiber bundle containing no corrective optics between the fiber ends and the well plate bottom illuminates the sample in order to induce fluorescence, and multiple fibers collect emission radiation and transmit it to a fluorescence detector such as a spectrometer. Other embodiments involve a light scattering illumination source with detection fibers located in either the same bundle containing the fluorescence monitoring fibers or an independent light scattering detection bundle for the measurement of static and/or dynamic light scattering. Some embodiments of the invention permit the measurement of phase analysis light scattering. Thus the measurement of multiple optical properties of a liquid sample may be made simultaneously or in succession. A method for these measurements is also disclosed.

An in-situ photocatalysis monitoring system based on surface-enhanced Raman Scattering (SERS) spectroscopy. The monitoring system may include a Raman excitation light source, a laser coupling lens, a narrow band filter, a total reflection mirror, a dichroic mirror, a focusing coupling lens, a SERS optical fiber probe, a liquid phase photocatalysis reactor, a photocatalytic light source, a Raman collection lens, and a spectrometer. A first furcation part and a second furcation part each extend from one end of a common detection part of the SERS optical fiber probe; an extending end of the first furcation part is coupled with the focusing coupling lens; an extending end of the second furcation part is coupled with the photocatalytic light source; and the other end of the common detection part is arranged inside the liquid phase photocatalysis reactor. Raman excitation light and photocatalytic light may be transmitted on a common channel.

An apparatus for the high throughput measurement of optical properties of liquid samples placed into the wells of a multiwell plate is disclosed. An optical fiber within a fiber bundle containing no corrective optics between the fiber ends and the well plate bottom illuminates the sample in order to induce fluorescence, and multiple fibers collect emission radiation and transmit it to a fluorescence detector such as a spectrometer. Other embodiments involve a light scattering illumination source with detection fibers located in either the same bundle containing the fluorescence monitoring fibers or an independent light scattering detection bundle for the measurement of static and/or dynamic light scattering. Some embodiments of the invention permit the measurement of phase analysis light scattering. Thus the measurement of multiple optical properties of a liquid sample may be made simultaneously or in succession. A method for these measurements is also disclosed.

An apparatus for the high throughput measurement of optical properties of liquid samples placed into the wells of a multiwell plate is disclosed. An optical fiber within a fiber bundle containing no corrective optics between the fiber ends and the well plate bottom illuminates the sample in order to induce fluorescence, and multiple fibers collect emission radiation and transmit it to a fluorescence detector such as a spectrometer. Other embodiments involve a light scattering illumination source with detection fibers located in either the same bundle containing the fluorescence monitoring fibers or an independent light scattering detection bundle for the measurement of static and/or dynamic light scattering. Some embodiments of the invention permit the measurement of phase analysis light scattering. Thus the measurement of multiple optical properties of a liquid sample may be made simultaneously or in succession. A method for these measurements is also disclosed.

An apparatus for the high throughput measurement of optical properties of liquid samples placed into the wells of a multiwell plate is disclosed. An optical fiber within a fiber bundle containing no corrective optics between the fiber ends and the well plate bottom illuminates the sample in order to induce fluorescence, and multiple fibers collect emission radiation and transmit it to a fluorescence detector such as a spectrometer. Other embodiments involve a light scattering illumination source with detection fibers located in either the same bundle containing the fluorescence monitoring fibers or an independent light scattering detection bundle for the measurement of static and/or dynamic light scattering. Some embodiments of the invention permit the measurement of phase analysis light scattering. Thus the measurement of multiple optical properties of a liquid sample may be made simultaneously or in succession. A method for these measurements is also disclosed.

A solution for measuring a suspension which contains wood fibres. The consistency of the suspension is changed in a consistency range. Optical radiation is directed at the suspension and the intensity of optical radiation interacted with the suspension is measured at different consistencies in the consistency range. The maximum intensity of the optical radiation is determined within the consistency range. At least one of the following properties of the suspension are determined based on the determined maximum intensity: kappa number, brightness.