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  • 420–680nm Visible Bandpass Reflective Optical Filter Glass
  • 420–680nm Visible Bandpass Reflective Optical Filter Glass
  • 420–680nm Visible Bandpass Reflective Optical Filter Glass
  • 420–680nm Visible Bandpass Reflective Optical Filter Glass
420–680nm Visible Bandpass Reflective Optical Filter Glass420–680nm Visible Bandpass Reflective Optical Filter Glass420–680nm Visible Bandpass Reflective Optical Filter Glass420–680nm Visible Bandpass Reflective Optical Filter Glass

420–680nm Visible Bandpass Reflective Optical Filter Glass

  • Product Item : RP420-680
  • Category: Optical Filters
  • Wavelength Range: 420–680 nm
  • Filter Type: Visible Bandpass Reflective Filter
  • Optical Function: Transmits visible band, reflects out-of-band wavelengths
  • Substrate Material: Optical Glass
  • INQUIRY   EMAIL

420–680nm Visible Bandpass Reflective Optical Filter Glass

The 420–680nm Visible Bandpass Reflective Optical Filter

is designed to selectively transmit visible wavelengths between

420nm and 680nmwhile reflecting unwanted spectral 

regions outside the target transmission band.

Manufactured from high-quality optical glass and finished 

with aprecision multilayer optical coating, this filter provides 

reliable spectral control for machine vision, optical imaging, sensing and scientific applications.

Key Features

1. 420–680nm Visible Transmission Range

The filter is designed for transmission across the

420–680nm visible wavelength range, covering a broad portion of the visible spectrum.

It can be used for optical systems requiring controlled 

visible-light transmission and unwanted spectral rejection.

2. Reflective Optical Filter Design

The multilayer coating provides selective transmission 

within the target wavelength range while reflecting spectral components outside the passband.

This reflective design helps improve optical light management and spectral separation.

3. Precision Multilayer Optical Coating

The optical coating is manufactured using multilayer 

thin-film technology to provide stable spectral characteristics and reliable optical performance.

The coating is designed for:

  • High transmission within the target band
  • Effective reflection outside the passband
  • Stable wavelength performance
  • Long-term optical durability
  • Improved spectral selectivity

4. Optical-Grade Glass Substrate

The filter uses an optical-grade glass substrate suitable for precision optical systems.

The glass substrate provides:

  • Good optical stability
  • High surface quality
  • Mechanical durability
  • Compatibility with custom optical processing

Technical Specifications

Item Specification
Product 420–680nm Visible Bandpass Reflective Optical Filter
Wavelength Range 420–680nm
Spectral Region Visible
Filter Type Bandpass / Reflective Optical Filter
Substrate Optical-Grade Glass
Coating Multilayer Optical Coating
Transmission 420–680nm target band
Reflection Outside passband
Surface Quality High Optical Precision
Shape Round / Square / Custom
Size Customizable
Thickness Customizable
Edge Treatment Customizable
Operating Environment Standard Optical Environments
Applications Machine Vision, Imaging, Sensing, Scientific Instruments
Production OEM / ODM / Bulk

Note:Actual spectral transmission, reflection, blocking performance 

and coating specifications can be customized according to wavelength, 

angle of incidence, substrate, size and application requirements.

Applications

Machine Vision Systems

The 420–680nm filter can be integrated into machine vision 

optical systems to control visible wavelengths and improve spectral selectivity.

Typical applications include:

  • Industrial inspection
  • Vision cameras
  • Optical inspection equipment
  • Automated imaging systems
  • Color and object detection

Optical Imaging

The filter can be used in imaging systems 

where controlled visible-spectrum transmission is required.

Applications include:

  • Digital imaging
  • Optical cameras
  • Imaging sensors
  • Inspection systems
  • Scientific imaging

Optical Sensing

The filter can help control the wavelength range reaching an optical detector or sensor.

Suitable for:

  • Optical sensing systems
  • Photodetection
  • Spectral measurement
  • Sensor modules
  • Instrumentation

Scientific & Industrial Instruments

The filter can be customized for optical instruments requiring 

specific visible wavelength transmission and unwanted spectral reflection.

Custom Optical Filter Manufacturing

We provide customized optical filter solutions based on customer drawings, 

optical requirements and application conditions.

Customization Options

  • Custom wavelength range
  • Custom filter dimensions
  • Custom round or square shapes
  • Custom thickness
  • Custom edge treatment
  • Custom coating specifications
  • Custom transmission requirements
  • Custom reflection requirements
  • Custom substrate options

OEM and ODM production is available for different optical system requirements.

OEM & Bulk Optical Filter Supply

For industrial and commercial applications, we support:

OEM optical filter manufacturing

Custom optical glass processing

Prototype and sample orders

Small-batch production

Bulk production

Custom coating solutions

Customers can provide drawings, dimensions, wavelength requirements or 

application details for engineering evaluation.

Why Choose Our 420–680nm Optical Filter?

  • Visible-spectrum transmission from 420–680nm
  • Precision multilayer optical coating
  • Optical-grade glass substrate
  • Stable spectral performance
  • Custom sizes and shapes
  • Custom thickness and edge treatment
  • Suitable for machine vision and imaging
  • OEM/ODM manufacturing available
  • Suitable for prototype and bulk orders

FAQ

What is a 420–680nm bandpass optical filter?

It is an optical filter designed to selectively transmit wavelengths 

within the 420–680nm visible range while reflecting unwanted spectral regions outside the target band.

Is this filter suitable for machine vision?

Yes. The filter is designed for applications including machine vision, 

imaging, optical sensing and industrial inspection.

Can the filter size be customized?

Yes. Custom diameter, length, width, thickness and shape 

can be produced according to application requirements.

Can you manufacture square optical filters?

Yes. Round, square and other custom shapes are available.

Can the coating be customized?

Yes. Multilayer optical coating specifications can be adjusted 

according to the required wavelength range and optical performance.

Can you provide OEM production?

Yes. OEM/ODM and bulk manufacturing are available for customized optical filter requirements.