Latest News

CIOE 2020 (The 22nd China International Optoelectronic Exposition) will be held on September 9-11, 2020 at the Shenzhen World Exhibition & Convention Center. With better organized floor plan, CIOE 2020 will continue to present the entire optoelectronic ecosystem including information communications, laser, infrared, precision optics, lens and camera module, optoelectronic sensor and photonic innovations.

Optosky Photonics Inc., with its latest and most complete spectrum range, Raman spectrometer, optical modular spectrometer, filed spectroradiometer, hyperspectral imaging system and Raman micro-spectrophotometer, attracted a lot of attention and praise on its first day at the fair.

Online monitoring of water quality is an important basis and effective means to realize water environment protection, drinking water security and alarm, sewage treatment and pollutant discharge control, water resource management and other aspects. In recent years, with the gradual improvement of real-time and frequency requirements for water quality monitoring, manual analysis by traditional laboratories has been difficult to meet the monitoring requirements, which has led to the rapid development of on-line spectral monitoring system. Uv-vis spectroscopy based on optical fiber spectrometer has the advantages of fast detection speed, low cost, no secondary pollution, and on-line in-situ measurement, etc. It has irreplaceable advantages in the fields of rapid detection of water quality, multi-parameter analysis, water quality classification and water quality alarm. In recent years, more and more instrument manufacturers have joined in.

As we all know, the spectrometers are widely knowen as reading spectrometers. A device for measuring the intensity of spectral lines at different wavelength positions with photodetectors such as photomultiplier tubes. It includs a entrance silt, a dispersion system, a imaging system and one or more exit slit. A dispersion element is used to separate the electromagnetic radiation from the source to the desired wavelength or wavelength region, and the intensity measurement is carried out on the selected wavelength (or scanning a certain band). The spectrometers are composed of monochrometer and polychromator.

The idea for the monochromator dates back to 1666, when Newton, studying a prism, discovered that the sun's rays were broken down into seven colors through the prism. In 1814 Fraunhofer designed an optical system consisting of slits, prisms and Windows and discovered absorption lines (Fraunhofer lines) in the solar spectrum. In 1860, Spectroscopy, a modern spectrograph designed by Kirchhoff and Bunsen for the study of metal spectra, was born. Since the prism spectrum is nonlinear, people begin to study grating spectrometers. Grating monochromator is an instrument for obtaining monochromatic light by grating diffraction. It can obtain monochromatic light from the source of the composite light (that is, the source of the mixed light of different wavelengths), obtain the light of a certain wavelength by a certain Angle of deflection of the grating, and can measure its value and intensity. Therefore, the spectral analysis of composite light source can be carried out.

Police in Nanning, Guangxi, have seized a new type of drug, "milk tea", after a final urine test revealed that the so-called "milk tea" is actually benzodiazepine drugs. Due to the wide variety of drugs, lawbreakers will take advantage of the limitation of front-line inspection equipment to evade inspection. Nanning Public Security Bureau in Guangxi province, the site of the initial urine test can only detect five, is likely to allow lawbreakers to take advantage of the loophole.  The variety of drugs is constantly derived, it does bring a lot of challenges to the spot inspection.