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BBP-783 spectral response — original published curveOpen full-size image ↗
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Bandpass Filters

BBP-783Bandpass Filters

BBP-783 is a bandpass filter. The main high-transmission region is approximately 778-799 nm. Use the full curve to match the desired signal and check secondary transmission before choosing the filter.

  • Product family: Bandpass Filters
  • Measured wavelength range: 300–1200 nm
  • Published response: Transmittance

Measured interval is not the passband. Values shown are sample measurements. Final specifications are agreed for your order.

MEASURED OPTICAL RESPONSE

Read the light.

Original published sample data.

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Nearest measured point shown; no interpolation or extrapolation. Original sample values are preserved, including values outside 0–100%. Samples are selection references, not production acceptance limits.

OPTICAL PERFORMANCE · BBP-783

Read the numbers.
Understand the response.

Measured wavelength range

300-1200 nm. Performance outside this measured interval is not established by this curve.

Main band at half-peak transmission

Approximately 772-808.4 nm, giving a full width at half maximum (FWHM) of approximately 36.5 nm. This describes the main band only; other transmitted regions may remain.

Selected regions at or above 80% transmission

778-799 nm. Approximate measured intervals.

Selected regions at or below 5% transmission

300-379 nm; 403-411 nm; 415-761 nm; 822-1115 nm. Measured sample intervals; confirm the required blocking for your order.

Peak transmission

Approximately 91.7% at 790 nm. Peak wavelength is not the same as a defined centre wavelength.

Average measured transmission, 400-740 nm

0.612%. Calculated from the factory sample data.

Average measured transmission, 820-1100 nm

1.194%. Calculated from the factory sample data.

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.

OPERATING CONDITIONS

Match the complete optical system.

Match the full source band.

Compare the source emission spectrum with the filter curve. Include the source bandwidth, rather than relying on the nominal wavelength alone.

Check unwanted response.

Compare the complete measured response with your detector sensitivity. Confirm any additional blocking needed for your system.

Define the incidence conditions.

Specify the working angle and whether the beam is collimated or converging. Confirm the required response under those conditions.

Confirm the physical fit.

Provide the available mounting space, required shape, dimensions and thickness. Physical specifications will be confirmed for your assembly.

APPLICATIONS

Where this profile can help.

Industrial & Machine Vision

Inspection, detection, sorting and image contrast.

Medical & Microscopy

Optical components for illumination and instrument development.

Research & Instrumentation

Spectral selection, beam paths and measurement systems.

Imaging & Photography

Manage exposure, unwanted wavelengths and reflection.

Application examples are starting points for evaluation; suitability depends on the complete optical system.

CUSTOM & ENQUIRY

Tell us what
your design needs.

Start with BBP-783 and discuss the spectral response, physical format and operating conditions.

Include in your enquiry

  • Target wavelengths and required transmission or blocking
  • Light source and detector model, or their spectra
  • Working angle, beam geometry and operating environment
  • Required shape, dimensions, thickness and mounting constraints
  • Sample quantity, expected order quantity and project timing

TECHNICAL RESOURCES

Take the data
into your design.

BBP-783 spectrum data CSV ↓KUPO Optics catalog Download ↗Explore Bandpass Filters →