The 500DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to transmit light in the 500nm wavelength range. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is made from UVFS Mal-1965, a material specifically chosen for its optical properties. It has a base shape of a circle, which is a common shape for filters due to its uniformity and ease of integration into optical systems. The filter's thickness is 6.1mm, providing sufficient structural integrity while minimizing unnecessary weight.
The 500DIB25 has a cut-on wavelength of 495nm and a cut-off wavelength of 505nm, meaning it allows light in the 500nm range to pass through while blocking light outside this range. This is particularly useful in applications where narrowband light is required, such as fluorescence microscopy or laser spectroscopy. The central wavelength (CWL) of the filter is 500nm, indicating the peak transmission wavelength.
Both the front and back surfaces of the filter are coated with KNI 500DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance and durability, ensuring reliable operation in various environments.
The filter's shape is described as a Thin Lens, indicating that it has been designed to focus or collimate light. This can be beneficial in applications where light needs to be concentrated onto a small area or dispersed over a larger area.
The 500DIB25 is currently in stock and available for purchase on Knight Optical's website. For more information, please refer to the provided weblink.