The 450–870nm Quartz Bandpass Reflective Optical Filter
is a large-size optical filter designed to selectively transmit wavelengths
from450nm to 870nmwhile reflecting and blocking unwanted
wavelengths outside the passband.
The filter combines anoptical quartz glass substratewith a
high-performancedielectric multilayer reflective coatingto provide high
spectral selectivity, stable optical performance and excellent thermal durability.
It is suitable for optical imaging, machine vision, optical sensing,
spectroscopy and other visible-to-near-infrared optical systems.
The filter provides a broad passband covering450–870nm, extending from the blue/visible region into the near-infrared region.
This wide spectral range is useful for optical systems requiring controlled transmission across a broad portion of the visible and NIR spectrum.
High-quality optical quartz glass is used as the substrate.
Quartz provides several advantages for demanding optical applications:
The quartz substrate is particularly useful for applications
where thermal stability is an important consideration.
The filter uses a high-performancedielectric reflective
coating based on multilayer thin-film technology.
The coating is designed to provide:
Large-size optical filters can be manufactured according to system requirements.
Custom dimensions can be evaluated for:
Dimension tolerances can be customized according to project requirements.
| Item | Specification |
|---|---|
| Product Name | 450–870nm Quartz Bandpass Reflective Optical Filter |
| Filter Type | Bandpass Reflective Filter |
| Passband | 450–870nm |
| Spectral Region | Visible + Near Infrared |
| Substrate | Optical Quartz Glass |
| Coating | Dielectric Reflective Coating |
| Coating Structure | Multilayer Thin-Film Coating |
| Transmission | High Transmission within Passband |
| Blocking | Out-of-Band Reflection / Blocking |
| Standard AOI | 0° |
| Optional AOI | Available on Request |
| Surface Quality | 60/40 or Better Optional |
| Size | Large Size Available |
| Dimension Tolerance | Customizable |
| Thickness | Custom |
| Thermal Stability | Excellent |
| Absorption | Low |
| Shape | Customizable |
| Applications | Imaging, Machine Vision, Sensing, Spectroscopy |
| Production | OEM / ODM / Bulk |
Note:Actual transmission, blocking, spectral edge characteristics
and coating performance depend on the coating design,
substrate dimensions, AOI and required optical specifications.
Detailed optical curves can be provided according to the customized specification.
The dielectric coating is designed to provide high transmission
across the target450–870nmwavelength range.
This allows the filter to selectively pass the required optical
spectrum while reducing unwanted spectral components.
Wavelengths outside the target passband are designed to be
reflected or blocked according to the coating specification.
This provides spectral separation for optical systems
requiring controlled wavelength transmission.
Quartz glass provides low absorption and excellent thermal stability,
making it suitable for applications where optical components
may be exposed to elevated optical power or changing environmental conditions.
The combination of optical quartz and multilayer
dielectric coating provides a stable optical platform for
long-term industrial and scientific applications.
The 450–870nm bandpass filter can be integrated into machine
vision systems to control the wavelength reaching the imaging sensor.
Potential applications include:
The filter can be used in imaging systems requiring
selective visible and near-infrared transmission.
Applications include:
The filter can help control the spectral range reaching optical detectors and sensors.
Suitable for:
The broad 450–870nm transmission range can be used in
selected spectroscopy and analytical optical systems
where visible-to-NIR spectral control is required.
The filter can be customized for scientific and industrial
ptical instruments requiring a large optical aperture,
quartz substrate and controlled spectral transmission.
Large optical systems may require filters beyond standard commercial dimensions.
We support customized:
For large-format projects, customers can provide optical drawings
or equipment specifications for engineering evaluation.
The standard angle of incidence is:
AOI: 0°
Other angles of incidence can be considered according to the optical system.
AOI is an important parameter for interference-based dielectric coatings,
so customers should specify the actual installation angle
when requesting a quotation or optical design.
Standard surface quality can be supplied according to project requirements.
60/40 or better surface quality is available as an optional specification.
Higher surface-quality requirements can be evaluated for
precision imaging and scientific optical systems.
We support customized optical filter manufacturing for:
Available production services include:
Custom quartz optical filters
Custom dielectric coatings
Large-size optical filters
Custom thickness
Custom AOI
Custom surface quality
Prototype and sample production
Small-batch and bulk production
It is a bandpass optical filter designed to transmit wavelengths
within the 450–870nm range while reflecting or blocking
unwanted wavelengths outside the passband.
Optical quartz provides excellent thermal stability,
low absorption and good durability, making it suitable for demanding optical environments.
Yes. It uses a multilayer dielectric reflective coating to provide
high transmission in the passband and out-of-band reflection/blocking.
Yes. Large-size quartz optical filters can be customized
according to dimensions, thickness and optical requirements.
The standard AOI is0°. Other angles can be evaluated upon request.
Yes. Custom thicknesses are available according to mechanical and optical requirements.
Yes.60/40 or bettercan be specified as an optional surface-quality requirement.
Yes. Round, square, rectangular and other custom shapes
can be considered according to the required dimensions.
Yes. We support OEM/ODM, prototype, small-batch and bulk production.
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