Optical Measures
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China
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On FindLight:
since 2023
Description
Spectral Absorbance And Concentration Measurement
Absorbance measures samples' capacity to absorb light at a specified wavelength. Absorbance measurement is an essential element of liquids and solids spectrum analysis. Moreover, based on the Lambert-Beer law, the absorbance spectrum can also be used for solution concentration detection. Additionally, the absorbance can also assist in quantitative material identification. There are different ways to measure absorbance.
Compared to traditional experimental methods, spectrometer detection is more straightforward, efficient, and accurate. The spectrometers adopt a modular design, which can adapt flexibly to different scientific and industrial demands.
Spectral Reflectivity And Color Measurement
Reflection is a fundamental optical property of an object and a basic component of spectroscopic measurements. It is essential to decide the reflection types when measuring the reflection, two main types of which are specular and diffuse reflection (although most in the realworld fall somewhere in between). Due to the 180° angle alteration, optical fibers can be used to sample the reflected light. By measuring the reflected light, the sample’s reflectivity can be determined and thus can help detect the sample’s reflection color and compositions.
Spectral Transmissivity Measurement
Spectral transmissivity is the ratio of the transmitted flux to the incident flux at a particular (or small band of) wavelength, which measures the amount of light that passes through transparent materials. Different methods can be adopted to measure this optic property. Compared to traditional experimental techniques, spectrometer measurement is convenient, efficient, adaptable, and accurate. Transmissivity detection is widely adopted in medicine, chemical engineering, and glass industries.
Spectral transmissivty measuring instrument YOA-8406
YOA-8406 series is mainly used for fast spectral transmissivity measurement of flat and curved
samples. Meanwhile, it can display the transmissivity curve and FWHM in real-time. YOA-8406
series provides CMOS, CCD, and InGaAs detector versions and supports wavelength range
customization within 200-1700nm. A secondary development kit enables user integration and
development.
Fluorescence Measurement
Fluorescence is the electromagnetic radiation emitted by a substance absorbing light or other electromagnetic radiation. A common example is the visible fluorescence from materials that absorb ultraviolet light. Different techniques have been developed for the fluorescence measurement of materials of different states. For liquids, cuvettes are used for sampling, and the fluorescence spectrum of excitation is measured in the direction of 90° of incident light; for solids, an optic fiber holder can be used to form a 45°angle between the incident light and the resulting fluorescence and, therefore, measure the spectrum; For powder samples, a hemispherical integrating sphere with the sample positioning in the middle can be adopted —after diffuse reflections in the sphere, the fluorescence can be collected and analyzed. Fluorescence measurement is widely used in high-resolution optics, medicine, chemistry, special lightning, etc.
LASER & LED Measurement Kits
Laser & LED measurement kits comprise a spectrometer, optical power meter, and integrating sphere and can measure central wavelength, FWHM, and optical power. The wavelength range is 200-1100nm, the resolution is 0.1-1nm, and the power range is 100nW-10W.
Systematic calibration is performed. The kits are suitable for the measurement of light sources such as LED, LED modules, and other monochromatic light.
Compact LED Optical Tester YOA-8409-01
YOA-8409-01 compact integrating sphere LED optical tester is used to measure LED color characteristics within the range of 350-1050nm. It can detect absolute intensity, dominant wavelength, color temperature, color coordinates, etc. It is calibrated with a standard tungsten light source. Multiple mounting holes are located on the side and bottom of the tester. YOA-8409-01 is compact and offers SDK, which is easy to carry and integrate. It supports USB 2.0 and RS232/RS422 and has a strong anti-interference capability. It is suitable for research and industries.
Optical Measures
Specifications |
|
|---|---|
| Probe Spectral Range: | 200 – 1700 nm |
| Temporal Resolution: | Not Specified |
| Max Laser Rep Rate: | Not Specified |
| Wavelength Range: | UV-VIS, VIS-NIR |
| Spectral Range: | 200-1700 nm |
| S/N Ratio: | 600:1, 800:1, 14667:1 |
| Resolution (Pre-configured): | ~2/10 nm |
| Wavelength Accuracy: | ±1, ±5 nm |
| Lamp Life: | 2000 hours (typical) |
| A/D: | 16bit |
| Stability: | ±0.5% |
| Measurement Range: | 1%-100% |
| Interface: | USB2.0 |
| Power Supply: | 15VDC,3A |
| Trigger: | Software, hardware, synchronous |
| Operating Temperature: | 5°C - 35°C (25°C recommended) |
| Operating System: | Win XP/7/8/10/11 |
Features
Spectral absorbance measurement kit for cuvette sampling
Easy operation, high repetability, high accuracy, and fast measurement speed
Real-time data display and saved data export
Support data storage
Immersion spectral absorbance measurement kit
No sampling required, easy to operate 24-hour online monitoring
Good repeatability, high accuracy and fast detection
Real-time data reading, support data storage
Spectral Reflectivity And Color Measurement
Convenient placement without special sample holders
Easy operation with good repeatability , fast detection
Real-time data reading
Data can be imported, stored, and exported
Surface color can be determined
Spectral Transmissivity Measurement
Easy operation, good repeatability , and fast detection
Real-time reading of transmissivity, wavelength , and FWHM
Data can be imported and stored
Spectral transmissivty measuring instrument YOA-8406
CMOS, CCD and InGaAs detector versions are available
Support in-depth customization in the range of 200-1700nm
Intelligent software design, easy to use
Support system integration and secondary development
Fluorescence Measurement
High performance LED of high stability and long service life
Modular design, adaptable to different applications
Compact size, easy to integrate and secondary development
LASER & LED Measurement Kits
Wide spectral range of 200-1100nm
Suitable for automatic pipeline testing
SDK and in-depth customization
Compact LED Optical Tester YOA-8409-01
Compact and easy to integrate
USB2.0 data transmission and power supply
Automatic peak seeking and real-time display of peak, CWL and FWHM
Real-time display of chromaticity parameters
Support RS232/RS422 communication
Support OEM integration and SDK
Applications
Spectral Absorbance And Concentration Measurement
Liquid Absorbance
Solution Concentration
Optic Fiber Spectral Reflectivity measurement kit
Specular reflectivity of flat materials
Integrating sphere spectral reflectance measurement kit
Diffuse and specular reflection of flat or curved materials
Surface color can be determined after intensity calibration
Horizontal Spectral Transmissivity Measurement Kit
Spectral transmissivity measurement of flat and smooth surfaces, such as filters
Vertical Spectral Transmissivity Measurement Kit
Spectral transmissivity measurement of flat and smooth surfaces, such as filters
Integrating sphere spectral transmissivity measurement kit
Convenient placement, no sample holder required.
Support samples of irregular shapes.
Spectral transmissivty measuring instrument YOA-8406
Transmissivity of filter and optical lens
Transmissivity of curved-edge IR apertures, coated mirrors, glued mirrors, and parallel plates
Fluorescence Measurement
Biochemical, medicine, gem
Frequently Asked Questions
Absorbance measurement is used to determine the capacity of samples to absorb light at a specific wavelength. It is essential for spectrum analysis of liquids and solids and can also be used for solution concentration detection and material identification.
Spectrometer detection is more straightforward, efficient, and accurate compared to traditional experimental methods for absorbance measurement.
Reflection measurement helps determine the reflectivity, reflection color, and compositions of a sample. It is a fundamental optical property of an object and is crucial for spectroscopic measurements.
The two main types of reflection are specular reflection and diffuse reflection. Most real-world reflections fall somewhere in between these two types.
Transmissivity detection is widely adopted in industries such as medicine, chemical engineering, and glass industries. It measures the amount of light that passes through transparent materials.