Bandpass Lens Filter 630 nm, Select your size, 630 nm peak wavelength, useful range between 610-648 nm

The Bandpass Lens filter 630 nm is engineered to transmit light at its 630 nm peak wavelength, blocking unwanted wavelengths outside its designated passband. This selective filtering enhances contrast, color separation, and measurement stability in machine vision and optical applications.

The filter mounts directly onto machine vision lenses using the standard front filter thread, ensuring secure installation and stable optical performance.

Multiple thread size options make the BP630 compatible with a wide range of lenses used in industrial and scientific imaging systems.

Narrow Bandpass Filter 630 nm overview

Narrow bandpass filters transmit a specific section of the spectrum while suppressing all out-of-band light.

For the BP630, transmission exceeds 90% at the 630 nm peak, and the filter maintains over 80% transmission across its 610–648 nm useful wavelength range, providing a controlled red-region passband suitable for precision imaging.

Specification
Filter type	Narrow Bandpass
Peak wavelength	630 nm
Peak wavelength color	Red
Useful wavelength range	610–648 nm

Thread Size Options for the BP630 Lens Filter

The BP630 filter is available in several common machine vision thread formats, allowing a secure and precise fit for a wide variety of lenses:

• C-mount filter

• 0.5 thread (pitch): M22.5×0.5, M25.5×0.5, M27×0.5, M30.5×0.5, M34×0.5, M35.5×0.5, M37×0.5, M37.5×0.5, M40.5×0.5

• 0.75 thread (pitch): M37×0.75, M43×0.75, M46×0.75, M49×0.75, M52×0.75, M55×0.75, M58×0.75, M60×0.75, M62×0.75, M67×0.75, M72×0.75

Want to use the Bandpass Lens Filter 630 nm with a C-mount (CMT) Filter?

The BP630 can also be installed inside the C-mount interface—ideal for lenses without a front filter thread or for compact setups where front-mounting is not practical.

If you plan to install the filter inside the C-mount interface, simply fill out the form below to get instant access to the mounting guide and lens compatibility information.

Applications for a 630 nm Bandpass Lens Filter

The BP630 isolates the red region of the spectrum, improving visibility and measurement reliability in systems where red illumination is used or preferred.

For monochrome cameras, the filter passes only the target wavelength band, enhancing:

• Fine surface detail detection

• Visibility of subtle defects or markings

• Material contrast under red lighting

When used with white-light or broadband illumination, the BP630 provides:

• Stronger contrast in the 630 nm region

• Sharper delineation of surface features

• Reduced influence from ambient light

• Consistent performance under changing conditions

This makes the BP630 suitable for machine-vision inspection, color-based sorting, fluorescence imaging, and precise optical measurement.

Integrating the BP630 into Machine Vision Systems

Most lenses include a front filter thread for direct installation. 

For C-mount lens on GigE camera or USB3 camera, the filter can also be positioned inside the C-mount connection—a useful option when the lens lacks a front thread. Mounted between the camera and lens, the BP630 maintains stable positioning within the optical path, ensuring consistent alignment and reliable imaging performance.

These flexible mounting options allow the BP630 to integrate easily into both new and existing machine-vision configurations.

Key Advantages of the BP630 Narrow Bandpass Filter  

• High transmission at the 630 nm center wavelength

• Effective blocking of out-of-band wavelengths

• Higher contrast and cleaner signal output

• Stable optical behavior across varying lighting conditions

• Reliable, repeatable performance in precision imaging tasks

• Enhanced image contrast in the red spectrum

Typical Uses for a 630 nm Bandpass Lens Filter  

• Red LED or laser illumination

• Surface and defect inspection

• Fluorescence and color-based imaging

• Material identification and sorting

• Red-wavelength contrast enhancement

Select the BP630 Filter for your application

Select the Bandpass Lens filter 630 nm in the thread size that fits your lens. For assistance choosing the right size or wavelength, contact our technical team.