Description

Bandpass Filters for Biochemical Analyzer

Bandpass filters for biochemical analyzer systems are precision optical components designed to selectively transmit specific wavelengths while blocking unwanted light. Jiujon Optics manufactures these filters for biochemical analysis instruments, laboratory equipment, fluorescence detection systems, and other optical measurement applications requiring accurate wavelength selection and stable transmission performance.

This series of bandpass filters is designed around 1050nm, 1058nm, and 1064nm center wavelengths, with a narrow 4nm ±0.5nm bandwidth. The filters use UV fused silica as the optical substrate and provide high passband transmission, strong out-of-band blocking, and a clear aperture greater than 90%. These characteristics help optical detection systems collect the required wavelength while reducing interference from unwanted radiation.

Precision Bandpass Filters for Biochemical Analyzer Systems

In an optical biochemical analyzer, the filter plays an important role in controlling the spectral range reaching the detector. Light generated, transmitted, or collected by the optical system may contain wavelengths outside the target detection band. A precision bandpass filter allows the required wavelength region to pass while suppressing unwanted light.

Jiujon Optics bandpass filters provide center wavelengths of 1050nm, 1058nm, or 1064nm with a wavelength tolerance of ±0.5nm. The FWHM is 4nm ±0.5nm, providing selective spectral transmission for optical detection applications.

The passband transmittance is greater than 90%, helping maintain sufficient optical signal through the filter. At the same time, the filters provide OD5 blocking across the specified 400–1100nm range. This combination of high transmission and strong blocking helps reduce optical interference and improve the signal available to the detector.

Key Features of the Bandpass Filters

• UV fused silica optical substrate
• Surface quality of 60-40
• Surface flatness of less than 1λ at 632.8nm
• Clear aperture greater than 90%
• Center wavelengths of 1050nm, 1058nm, and 1064nm ±0.5nm
• FWHM of 4nm ±0.5nm
• Passband transmittance greater than 90%
• OD5 blocking from 400–1100nm
• Transition band from 10% to 90% of ≤2nm
• Center incidence angle of 3.7°
• Designed incident angle range of 1.5°–5.9°
• Protective chamfer of less than 0.3 × 45°

The optical design can be integrated into compact detection modules and automated analyzer systems where stable wavelength filtering and efficient light transmission are required.

Applications in Biochemical and Optical Analysis

Bandpass filters for biochemical analyzer systems can be used in a variety of laboratory and analytical instruments. By selecting a defined spectral region, the filter can help the optical detection system distinguish the desired signal from unwanted wavelengths.

Typical applications include:

• Biochemical analysis instruments
• Clinical laboratory analyzers
• Fluorescence analysis systems
• Optical detection modules
• Automated biochemical analyzer systems
• Biotechnology instruments
• Raman spectroscopy systems
• High-precision optical measurement equipment

For in-vitro diagnostic and laboratory instruments, optical components must be carefully matched to the illumination source, detector response, optical path, and measurement wavelength. The appropriate bandpass filter can help control the spectral response of the detection channel. The U.S. FDA describes in-vitro diagnostics as tests performed on samples such as blood or tissue, with many IVD systems relying on analytical measurement technologies. FDA In Vitro Diagnostics Information

Optical Performance and Wavelength Selection

The wavelength selection of a biochemical analyzer filter depends on the optical architecture and detection principle of the instrument. Jiujon Optics provides this filter series with three available center wavelength options: 1050nm, 1058nm, and 1064nm.

The narrow FWHM of 4nm ±0.5nm helps define a relatively narrow transmission band around the target wavelength. Meanwhile, the ≤2nm transition band supports a controlled transition between the passband and blocking regions.

For optical measurement systems, wavelength accuracy and transmission characteristics are important factors when matching a filter with a light source and detector. NIST also maintains reference work related to UV, visible, and near-infrared spectrophotometry, including optical transmittance and wavelength-scale traceability.

Manufacturing and Quality Control

Jiujon Optics manufactures precision optical filters using controlled surface processing and optical coating processes. Production equipment includes surface processing equipment, coating equipment, laser cutting equipment, and spherical machining equipment.

Inspection and measurement equipment includes the Hitachi UH4150 spectrophotometer, multifunctional detector, Smart Flash Tester, and ZYGO interferometer. These instruments support dimensional, surface, and optical performance inspection during production.

The use of UV fused silica provides a stable optical substrate for applications requiring controlled transmission characteristics and good optical quality. The 60-40 surface quality specification and less than 1λ surface flatness at 632.8nm are designed for precision optical applications.

Custom Optical Filter Solutions

Different biochemical analyzers may require different center wavelengths, bandwidths, dimensions, incidence angles, mounting configurations, or coating specifications. Jiujon Optics can work with customers to develop customized optical filter solutions according to the requirements of the optical system.

When selecting a bandpass filter for a biochemical analyzer, customers can provide information such as target wavelength, bandwidth, required transmission, blocking range, substrate, dimensions, thickness, clear aperture, angle of incidence, and mounting requirements.

This information allows the filter design and manufacturing specifications to be matched more closely with the analyzer’s optical path and detector requirements.

For customers evaluating other optical filter solutions, Jiujon Optics also provides a 410nm Bandpass Filter for Pesticide Residue Analysis and a 1550nm Bandpass Filter for LiDAR Rangefinder. These products demonstrate different wavelength and application requirements for precision optical filtering.

Why Choose Jiujon Optics

Jiujon Optics specializes in the development and manufacturing of precision optical components for medical, biological, industrial, laser, and measurement applications. Our product range includes optical filters, lenses, prisms, mirrors, optical windows, reticles, and other customized optical components.

For biochemical analyzer applications, we focus on consistent optical performance, controlled manufacturing processes, and application-specific specifications. Our engineering team can support customers from optical specification review through prototype development and volume production.

If you are looking for bandpass filters for biochemical analyzer systems, please provide your required center wavelength, bandwidth, dimensions, substrate, transmission, blocking range, and angle of incidence. Jiujon Optics can evaluate the optical requirements and provide a suitable customized filter solution.