Microplate reader filter

Bodian Optics has many years of experience in filter research and development and production. The microplate reader filter provided has the advantages of accurate wavelength positioning, high signal-to-noise ratio, good environmental stability and no drift. We have developed universal filters and energy-matching filters according to user needs, which are suitable for various types of microplate readers.

Application:

The microplate reader is a professional instrument for reading and analyzing the experimental results of enzyme-linked immunoassay (EIA). Widely used in clinical testing, biological research, agricultural science, food and environmental science. As the core monochromatic device in the optical path of the microplate reader, the filter is very important for the accuracy, repeatability and stability of the absorbance measurement results.

Specifications of Filter：

The microplate reader filter are typically designated by the wavelength range they transmit, their passband. Aside from the passband wavelength, the three most important specifications are the center wavelength (CWL), the full width at half maximum (FWHM), and the peak transmission (T).

The center wavelength (CWL) of The microplate reader filter is the wavelength at the center of the passband. The peak transmission (T) is the wavelength of light at maximum transmission. Finally, the full width at half maximum (FWHM) is the bandwidth at 50% of the maximum transmission.

Sometimes cut-on and cut-off wavelengths are used to describe the filter’s passband instead of FWHM and CWL. The transition from passband to blocked wavelengths of light is described by the edge steepness. If a filter has a steep edge, the transmission drops of quickly at the cut-off and cut-on wavelengths.