Lightway - Features
PQY-01 Photoreaction Evaluation System
Shortens Experimental Process
Conventional measurement requires a lengthy process using a chemical actinometer but Lightway™ includes functionality that calibrates the number of irradiated photons, eliminating this process.
*Using a chemical actinometer involves sample adjustment process steps, such as crystallizing, air drying, and diluting samples, and then measuring the number of photons in a dark room and calibrating the number of photons irradiated on the sample.
Easy Measurement
It can monitor spectral changes* during the photoreaction process in real time.
Measurements can be started by specifying mainly three parameter settings
(measurement interval, measurement time, and number of irradiated photons),
which makes it easy to operate even for first-time users. Also, a dialog box is
displayed whenever a button is pressed to help navigate operations.
* Results for specific wavelengths can be graphed as a function of time.
The PQY- Meas software that comes standard with the system offers the following three modes
Measures Photon Count Accurately
Previously, a chemical actinometer was required to calculate the number of irradiated photons, but there were concerns about variability caused by the chemical actinometer adjustment process. The Lightway system uses a power meter to calibrate the number of irradiated photons and make corrections based on spectral shape prior to measuring, which prevents variability caused by differences in skill levels.
It also features a stable and long-lasting LED irradiation light source.
Using an LED irradiation light source means reliable measurements can be obtained over long periods
The figure above illustrates one example of how light source intensity decreases over time. The red line indicates the intensity of an LED irradiation light source, whereas the blue line indicates the intensity of a xenon lamp irradiation light source. It shows that the LED irradiation light source offers high intensity for a longer time and the intensity decrease is more gradual than for the xenon lamp irradiation light source.
An optional LED irradiation light sources are available from the following wave- lengths.
Center wavelength
• 365 nm
• 395 nm
• 470 nm
• 550 nm
The LED irradiation light source can be replaced easily.
