UV Fused Silica Plano-Convex Lenses

Name: UV Fused Silica Plano-Convex Lenses
Brand: PhotonEdge
SKU: PE-LENS-UVPCX-012
Availability: LimitedAvailability

Key Specifications

Material	UV Fused Silica (JGS1)
Diameter	3-75 mm
Focal Length	5-500 mm
Wavelength	185-2100 nm
Surface Quality	20-10 / 10-5
Flatness	λ/4 @ 632.8nm
Clear Aperture	> 90%
Coatings	UV AR 193/248/355nm, BBAR, Uncoated

What Is a UV Fused Silica Plano-Convex Lenses?

UV fused silica plano-convex lenses are fabricated from high-purity synthetic SiO₂, offering exceptional transmission from 185nm to 2100nm. The plano-convex geometry provides positive focal length for focusing and collimation in demanding UV applications.

Unlike BK7, UV fused silica does not solarize under prolonged UV exposure, making it the material of choice for excimer laser systems and semiconductor inspection optics.

When Should You Use This Product?

✔ Good Choice When

✓ UV laser systems (193nm, 248nm, 355nm) requiring focusing or collimation
✓ Semiconductor wafer inspection optics in deep UV
✓ Fluorescence and UV spectroscopy beam conditioning
✓ Applications where BK7 solarization would degrade performance

⚠ Consider an Alternative When

✗ Visible-only with tight budget → BK7 Plano-Convex Lens

✗ Broadband chromatic correction needed → Achromatic Doublet

✗ Mid-IR focusing required → CaF₂ Plano-Convex Lens

✗ Extreme resolution with low aberration → Aspheric Lens

Available Optical Materials

Select the optimal substrate material based on your wavelength, environment, and budget requirements.

Material	Transmission	Key Advantage	Considerations
N-BK7	VIS / NIR (350-2000nm)	General-purpose, low cost, good homogeneity	Not suitable for UV < 350nm
UV Fused Silica	UV / VIS / NIR (185-2100nm)	Excellent UV transmission, low absorption, high LIDT	Higher cost than BK7
CaF₂	Deep UV / VIS / IR (130-7800nm)	Broadest transmission range, low refractive index	Fragile, higher cost
Sapphire	UV / VIS / NIR (150-5500nm)	Extremely hard (9H), scratch resistant	Birefringent, higher refractive index

Not sure which material to choose?

Ask AI Optical Engineer

Optical Coating Options

UV AR (193nm)

AR for ArF excimer laser. R < 0.5%. High LIDT.

Typical use: 193nm lithography and laser systems

UV AR (248nm)

AR for KrF excimer laser. High LIDT.

Typical use: 248nm UV laser processing

UV AR (355nm)

AR for third-harmonic Nd:YAG. R < 0.25%.

Typical use: 355nm UV laser micromachining

BBAR UV-VIS-NIR

Broadband AR from 250nm to 1100nm.

Typical use: Multi-wavelength UV-VIS applications

Uncoated

Raw fused silica surface. ~4% reflection.

Typical use: Non-critical UV applications

How to Specify Your Coating

To select the right coating, please provide: (1) Operating wavelength, (2) Angle of incidence, (3) Required transmission or reflectivity, (4) Laser power density (if applicable), (5) Operating environment.

Engineering Considerations

Key factors to evaluate when specifying this optical component for your system.

Wavelength & Solarization

JGS1 has very low solarization. For high-dose 193nm/248nm applications, confirm solarization-hardened grade.

Laser Damage Threshold

Bulk fused silica has high intrinsic LIDT. Coating LIDT is typically limiting. Specify laser fluence and pulse duration.

Thermal Stability

CTE 0.55 ppm/K ensures minimal focal shift under thermal load.

Surface Quality

20-10 standard for UV; 10-5 for scattering-sensitive systems.

Orientation

Orient convex surface toward collimated side to minimize spherical aberration.

Cleaning

Use UV-grade cleaning protocols to avoid UV-absorbing residues.

Applications

Laser Systems

Beam delivery, focusing, and conditioning for industrial and scientific laser systems.

Semiconductor

Wafer inspection, lithography support, and process control optics.

Machine Vision

Image formation in inspection systems and quality control cameras.

Research & Education

Laboratory optics, teaching setups, and experimental beam paths.

Manufacturing & Customization

PhotonEdge supports optical component sourcing, engineering review, and qualified manufacturing through our optical manufacturing network. We coordinate production, coating, and inspection to deliver components that meet your specifications.

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Prototype

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Low Volume

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Volume Production

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Custom Specification

Quality Assurance

Dimensional Inspection

Diameter, thickness, focal length verified per specification

Surface Quality

Scratch-dig inspection under calibrated illumination

Coating Verification

Spectrophotometric measurement of transmission/reflectance

Inspection documentation available according to project requirements. Certificates of Conformance, material test reports, and coating curves can be provided.

You May Also Need

Related Knowledge

Engineering Documentation

The following documentation is available upon request for qualified engineering projects:

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Dimensional Drawing

CAD & dimensional specs per your requirements

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Material Data Sheet

Material properties, transmission curves & certificates

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Coating Performance Curve

Spectrophotometric measurement data

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Inspection Report

Surface quality, flatness, centration & dimensional data

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Certificate of Conformance

CoC with full traceability per project requirements

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Custom Specification Sheet

Application-specific specification documentation

Documentation availability depends on project scope and order quantity. Request details during RFQ.

Frequently Asked Questions

What materials are available for this lens type?

We offer multiple substrate materials including N-BK7, UV Fused Silica, CaF₂, and Sapphire depending on your wavelength and environmental requirements.

Can I order custom specifications?

Yes. PhotonEdge offers custom diameters, focal lengths, coatings, and surface qualities. Custom specifications typically require 4-6 weeks lead time.

What surface quality should I specify?

40-20 is suitable for most laser and imaging applications. 20-10 is recommended for precision systems where scattering must be minimized.

What coating do I need?

The coating depends on your operating wavelength. For visible applications, AR 350-650nm is standard. For NIR lasers, choose the coating matching your wavelength. Uncoated is suitable for non-critical applications.

Do you provide inspection reports?

Yes. Dimensional reports, surface quality verification, and coating performance data are available according to project requirements.

How do I request a quote?

Click the 'Request Engineering Quote' button and provide your diameter, focal length, wavelength, coating, surface quality, and quantity.

Will UV fused silica solarize?

JGS1 has very low solarization. Some degradation may occur after thousands of hours at 193nm. Discuss hardened options for critical use.

What is the max operating temperature?

Softening point ~1683°C, continuous operation to 1000°C in clean conditions.

Not Sure Which Specification You Need?

Describe your optical system and our AI Optical Engineer will help identify the right specifications, materials, and coatings for your application.

Analyze My Requirement

Request an Engineering Quote

Provide your requirements and our engineering team will respond within 24 hours with a detailed quotation.

MaterialDiameterFocal LengthWavelengthSurface QualityFlatnessClear ApertureCoatings

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