AR2S-UVB-01 Anti-Reflective (AR) Coating (Both Side)
Broadband multi-layer (BBAR) anti-reflection coating minimising surface reflections across uv-blue wavelengths (300 – 500 nm) for maximum throughput and ghost-free optical performance.
- Coating type: Broadband multi-layer (BBAR) (double-side coated)
- Design waveband: 300 – 500 nm
- Average reflectance (Ravg): < 10.38 % per surface
- Peak reflectance: < 49.96 % (worst case in waveband)
- Resulting transmittance: ≥ 79.2 % T (both surfaces coated)
- AOI: 0° (normal incidence); performance degrades gradually at higher angles
- Substrate: Borofloat® or customer-specified glass
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Wavelength range tuning, V-coat for single wavelength, custom substrates, rapid prototypes
Learn more
AR2S-UVB-01 AR delivers Coating type Broadband multi-layer (BBAR) (double-side coated), Design waveband 300 – 500 nm, and Average reflectance (Ravg) < 10.38 % per surface.
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
UV curing and photolithography systems where maximum UV-blue throughput is essential for efficient exposure and uniform energy delivery across the work surface
Description
AR2S-UVB-01 is a double-side anti-reflection coating purpose-built for the ultraviolet-B through violet range, spanning 370 nm to 440 nm. Average transmission across this band exceeds 96 %, peaking at 97.2 % near 411 nm. The coating delivers T > 95 % from 388 nm to 471 nm, placing its strongest performance exactly where UVB and violet sources emit. Below 370 nm, transmission drops sharply, effectively limiting throughput to the target band while out-of-band visible transmission remains moderate (> 80 % beyond 500 nm), offering flexibility if broadband visible light must also pass.
Key Advantages
- Tavg > 96 % across 370-440 nm - maximizes photon throughput for UV-LED, mercury-line (365 nm, 405 nm), and violet-laser sources.
- Peak transmission of 97.2 % at 411 nm - places best performance at the heart of the violet band, ideal for 405 nm laser diode and LED systems.
- Sharp UV cut-on - transmission rises from < 1 % at 300 nm to > 90 % by 361 nm, ensuring minimal deep-UV leakage.
- Hard-oxide durability - ion-assisted coating withstands the photochemical stress of UV exposure as well as heat, humidity, and solvents.
- Custom formats available - round, square, or free-form blanks from 5 mm to 450 mm, thickness 0.21-3.8 mm, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates.
Typical Applications
- UV fluorescence excitation - maximizes delivery of 365-405 nm excitation light to samples while resisting photodegradation from prolonged UV exposure.
- UV curing and bonding - reduces optical losses in UV-LED curing systems, improving dose uniformity and energy efficiency.
- Photolithography and semiconductor inspection - provides high-throughput UV windows for 365 nm (i-line) and 405 nm (h-line) exposure and metrology tools.
- Forensic and document examination - transmits the violet and near-UV wavelengths used to reveal latent prints, security features, and altered documents.
- Dermatology and phototherapy - delivers UVB wavelengths (370-440 nm) efficiently through optical windows in narrowband phototherapy devices.
Need a prototype in days or volume coatings next quarter? KUPO Optics can coat, dice, and ship AR2S-UVB-01 to your exact size, shape, and substrate specifications.
FAQ
AR2S-UVB-01 FAQ
What is AR2S-UVB-01 and what is it used for?
AR2S-UVB-01 is an Anti-Reflective optical product. Broadband multi-layer (BBAR) anti-reflection coating minimising surface reflections across uv-blue wavelengths (300 – 500 nm) for maximum throughput and ghost-free optical performance. Common uses include UV curing and photolithography systems where maximum UV-blue throughput is essential for efficient exposure and uniform energy delivery across the work surface.
What are the key optical specs of AR2S-UVB-01?
Key published specs for AR2S-UVB-01 include Coating type: Broadband multi-layer (BBAR) (double-side coated); Design waveband: 300 – 500 nm; Average reflectance (Ravg): < 10.38 % per surface; Peak reflectance: < 49.96 % (worst case in waveband); Resulting transmittance: ≥ 79.2 % T (both surfaces coated).
What applications is AR2S-UVB-01 best suited for?
KUPO lists the best-suited applications as UV curing and photolithography systems where maximum UV-blue throughput is essential for efficient exposure and uniform energy delivery across the work surface.
Can AR2S-UVB-01 be customized for size, substrate, or coating requirements?
KUPO lists the construction for AR2S-UVB-01 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include Wavelength range tuning, V-coat for single wavelength, custom substrates, rapid prototypes.
What should I know about angle of incidence and durability for AR2S-UVB-01?
The published angle of incidence for AR2S-UVB-01 is 0° (normal incidence); performance degrades gradually at higher angles. The hard-oxide coating is built for repeated handling, heat, and cleaning.
