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UVR Optics!

Precision UV-Bandpass Filters for Pure Ultraviolet Imaging

Pure Ultraviolet. Zero Contamination. Maximum Scientific Accuracy.

UVR Optics UV-Bandpass Filters are engineered for professionals who demand true ultraviolet transmission without visible or infrared leakage. Whether you are conducting astronomical UV observation, forensic imaging, materials analysis, or professional ultraviolet photography, your results depend on optical purity.

Unlike generic UV filters that allow infrared and visible light leakage, UVR Optics filters are designed with advanced multilayer dielectric coatings that isolate only the target UV wavelengths producing sharp, uncontaminated ultraviolet images every time.

UV-Bandpass Filters

AndreaU MK II UV Bandpass Filter 

The AndreaU MK II filter absorbs both the Visible (400nm - 700nm) and the Near Infrared (700nm--1100nm), passing only the central UVA wavelengths.

UVBplus Bandpass Filter

UVROptics' UVBplus captures the UVB range(290-320nm). "Pushing the limits of sensor technology".

Dichroic

UVROptics' Dichroic, peaking at 376nm, captures the greatest percentage of the solar UVA range.

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NIR Blocking Filters

NIR-Block Filter

The NIR-Block provides those UV photographers who use stacks of ionic filters the opportunity to achieve a new maximum in NIR (Near-Infrared) blocking while still enjoying excellent UV transmission. In the NIR-Block we have exceeded the UV transmission of the Schott S8612 while also providing significantly greater out-of-band blocking.

                                                                      

CuRB NIR-Blocking Filter

UVROptics' CuRB is an acronym for our Copper (Cu) Red-Blocking filter. The CuRB is a water-tight cell, within a 52mm filter ring, containing a Copper sulphate (CuSO4) solution at a precise concentration. The CuSO4 blocks, through absorption, the high-red and Infrared wavelengths in the 670nm-1100nm range.The advantage of the CuSO4 over other Infrared blocking filters is the UV transmission of Copper sulphate as well as the red/NIR blocking beginning in the 690nm range. A UV photographer can use any of the common UV-transmitting, visible-light-absorbing filters, e.g., UG1, UG11, ZWB1, in conjunction with the CuRB to produce an IR free image.

  

Why UV-Bandpass Accuracy Matters ?

Ultraviolet light occupies a narrow but powerful region of the electromagnetic spectrum between visible light and X-rays. Scientific publications from NCBI, Frontiers in Physics, and Wikipedia’s Optics Archive confirm that even small contamination from visible or near-infrared light can invalidate UV-based imaging and measurements.
Many inexpensive filters marketed as “UV” are actually broad-spectrum filters that transmit unwanted wavelengths. This leads to :
• Washed-out UV contrast
• False surface details
• Incorrect fluorescence response
• Misleading astronomical data

UVR Optics eliminates these risks by using true bandpass engineering.

What Makes UVR Optics Filters Different?

UVR Optics UV-bandpass filters are engineered for professionals who require pure ultraviolet transmission with maximum out-of-band blocking. Designed to reduce visible and near-infrared (NIR/IR) contamination, they help keep UV imaging clean, consistent, and repeatable.

01

True UV Bandpass Isolation

Our UV bandpass filters are tuned to pass only selected ultraviolet wavelengths such as:

  • UVA (320–400 nm)
  • UVB (280–320 nm)
  • Narrowband UV lines for astronomy & spectroscopy

No visible. No infrared. Only pure ultraviolet.

02

Scientific-Grade Coatings

UVR coatings are developed using thin-film optical deposition techniques designed for precise spectral performance. This approach improves UV throughput while suppressing out-of-band wavelengths—aligned with widely documented thin-film optics principles.

Keyword targets: thin-film optical coating, dielectric bandpass filter, UV transmission, spectral filtering

03

No IR Leakage

IR contamination is one of the most common causes of “false UV” images in UV photography and UV astronomy. UVR Optics filters include integrated IR-blocking layers to help prevent near-infrared leakage and preserve ultraviolet image purity.

Keyword targets: IR blocking, NIR cut filter, UV imaging accuracy, infrared leakage prevention

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Applications of UVR Optics UV-Bandpass Filters

1

Astronomical UV Imaging 

Used for:
  • Solar UV observation
  • Planetary atmospheric analysis
  • Stellar UV emission studies

Research published in Frontiers in Astronomy and Space Science highlights the importance of narrowband UV filtering to prevent spectral overlap. 

2

Forensic Ultraviolet Photography

UVR Optics filters help isolate:
  • Surface residues
  • Security features
  • Document verification
  • Material contrast

Unlike standard UV filters, our optics reveal true ultraviolet reflectance and fluorescence without distortion.

3

Industrial & Material Analysis

Ultraviolet reflectivity and absorption are widely used in:
  • Coating inspection
  • Surface contamination detection
  • Optical testing
  • Polymer analysis

Research in NCBI and ResearchGate optics journals shows that precise UV wavelength control increases detection reliability.

4

Professional UV Photography

Capture:
  • Botanical UV reflectance
  • Artistic UV portraits
  • Scientific UV imaging

With no infrared or visible light contamination, UVR filters produce true ultraviolet contrast.

5

Precision Optical Engineering

UVR Optics filters are manufactured using:
  • Ion-assisted thin film deposition
  • High-purity fused silica substrates
  • Spectrally tuned multilayer stacks

These technologies are documented in Wikipedia’s Optical Coating references and Frontiers in Applied Physics as the gold standard for spectral filtering.