Biochemical filters are specifically used in biochemical analyzers and microplate readers. They are the core components in optical systems. Their optical performance determines the accuracy and sensitivity of equipment inspection. After the development of six generations of products, the filters produced by HB Optical have been developed into 5 size series, more than 50 wavelengths, and more than 200 models and specifications. The unique deep cut-off, rectangular waveform, and ultra-high signal-to-noise ratio design ensure that the product obtains better absorbance test accuracy, linearity, and consistency of test results. The product performance reaches the advanced level, and the larger absorbance test can reach more than 4ABS. According to the optical system design of different instruments, Huiboguang studentized optical filters are divided into standard biochemical filters, energy-matched biochemical filters, and multi-channel spectroscopic biochemical filters. We use the plasma assisted deposition process (PIAD) and ion beam assisted deposition process (IAD) to manufacture these filters, to ensure that the filters have stable spectral performance and long service life. A variety of structural designs, multiple matching types, and a cut-off background above OD6 enable the system to obtain a good signal-to-noise ratio. Most filters are packaged in a black anodized aluminum housing with a logo printed on it, and the arrow marks represent the direction of light transmission inside the filter.