BMS-003 650 nm reflecting beam splitter
BMS-003 is a beam splitter for a reflected red-light path, with a factory working angle of 45 degrees. The values below describe reflected light; transmission through the other path needs to be confirmed separately.
- Measured wavelength range: 300-800 nm, reflectance
- Reflectance at 650 nm: 89.098%
- Factory angle: 45°; confirm for your configuration
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
BMS-003 650 nm reflecting beam splitter
BMS-003 is a beam splitter for a reflected red-light path, with a factory working angle of 45 degrees. The values below describe reflected light; transmission through the other path needs to be confirmed separately.
- Measured wavelength range: 300-800 nm, reflectance
- Reflectance at 650 nm: 89.098%
- Factory angle: 45°; confirm for your configuration
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
650 nm reflecting beam splitter (BMS-003)
BMS-003 is a beam splitter for a reflected red-light path. The factory describes a nominal 650 nm design for use at a 45-degree angle. The supplied curve measures reflected light; ask us to confirm the transmitted light separately.
Optical performance
- Measured wavelength range: 300-800 nm reflectance.
- Measured reflectance at 650 nm: 89.098%. This is reflected light, not transmitted light.
- Factory design designation: 650 nm, 45 degrees, nominal reflectance 90% +/-3%. Factory design target; confirm the final specification for your order.
- Customization: We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.
These values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.
Applications to consider
- Red-light beam routing: Evaluate the reflected path around 650 nm for illumination or instrument integration. Match the source bandwidth and optical geometry to the required response.
- Optical monitoring: Discuss a reflected signal and a separately specified transmitted path for the intended source and detector.
Choosing this filter
- Confirm both reflected and transmitted paths, polarization and working angle. Reflectance alone does not determine transmission.
Custom options
Start with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.
Reflectance spectrum
Questions about BMS-003
Does the 89.098% reading at 650 nm mean transmission?
It means reflectance: that fraction of the measured 650 nm light is reflected by the measured sample. BMS-003 is intended for a reflected red-light path; the chart does not establish the transmission of the other path.
Can I install BMS-003 at a different angle from 45 degrees?
The factory identifies this as a 45-degree design. If your layout uses another angle, tell us the beam geometry and polarization before selecting it. The supplied curve does not establish the response at other angles.
Discuss this filter with KUPO - include the product reference, source wavelength, working angle and required dimensions.