OptoSigma's VPF-50S-12-65-71000 is a 50 x 50 mm optical glass bandpass interference filter with a central wavelength of 710nm. This filter is designed to transmit light within a specific range of wavelengths while blocking other wavelengths, making it ideal for various applications in optical systems.
The filter is rectangular in shape, with dimensions of 50mm x 50mm, and has a thickness of 3mm. It is cut on at 704nm and cut off at 716nm, with a center wavelength (CWL) of 710nm. The coating on both the front and back surfaces of the filter is 'opt vpf-12-65-71000', which is specifically designed to enhance its performance as a bandpass filter.
The filter's geometry is that of a thin lens, which can be beneficial in certain optical system configurations. The catalog number for this filter is VPF-50S-12-65-71000, and it can be found on the OptoSigma website, where it is currently in stock.