Dongguan Felix Glass Co., Ltd. E-mail: james@felixglass.com - Tel: +86 185 6503 2888
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Fused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical Lens

Fused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical Lens
Fused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical LensFused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical LensFused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical LensFused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical LensFused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical LensFused silica plano-concave lens, UV-IR Transmissive Fused Silica Optical Lens
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CategoriesAspheric Lenses
BrandFELIX GLASS optical glass Manufacturing base
ModelFG-FS-PL-CON-LENS
MaterialHigh purity synthetic fused silica (fused quartz glass)
Lens StructurePlano-Concave Single Element Negative Lens
Spectral Transmission Range185nm–2.1μm Deep UV to Near IR
Core Optical FunctionLaser Beam Expansion & Divergent Shaping
Core Application FieldUV Laser Equipment, Spectroscopy, Semiconductor Inspection
FOB portSHENGZHEN SHANGHAI GUANGZHOU
Terms of PaymentL/C, D/A, D/P, Western Union
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Detail Information

Precision Fused Silica Plano-Concave Single Optical Lens

 

Felix Glass plano-concave single lens is manufactured from high-purity synthetic fused silica (fused quartz glass), a high-performance optical substrate with ultra-wide transmission covering deep ultraviolet to near-infrared band. The lens adopts plano-concave single-element structure: one flat plane surface, one concave curved surface, presenting negative focal length optical characteristic, which is specially used for laser beam expansion, beam divergence and chromatic aberration matching optical paths.
 
Ultra-precision CNC grinding and polishing guarantee high surface figure accuracy and ultra-low surface roughness. Fused silica features extremely low thermal expansion coefficient, stable optical performance under high-power UV laser irradiation, and excellent high temperature resistance, no deformation or light absorption drift under continuous industrial laser operation. Custom wavelength-matched AR anti-reflection coating can be deposited on both surfaces to reduce surface reflection loss and improve UV/IR light throughput.

 

Core Optical Specifications

 
- Raw Material: High purity synthetic fused silica (fused quartz glass)
- Lens Structure: Plano-concave single element, flat + concave dual surface
- Working Spectrum: 185nm – 2.1μm deep UV, visible light & near-infrared
- Optical Property: Negative focal length, divergent beam shaping function
- Surface Flatness: ≤ λ/8 @632.8nm high precision standard
- Surface Quality: Standard 60-40 scratch-dig, upgradeable to 40-20 high precision
- Thermal Expansion Coefficient: Ultra-low 0.55×10⁻⁶ /℃, stable under temperature fluctuation
- Coating Option: Custom broadband AR coating optimized for UV / 1064nm / 532nm laser wavelength
- Edge Treatment: Optional black edge coating to suppress stray light interference
 

Core Product Advantages

 
1. Fused silica substrate with ultra-wide UV-IR transmission, uniquely suitable for deep ultraviolet laser systems that ordinary optical glass cannot support
2. Plano-concave negative lens design, professional for laser beam expansion, collimation matching and optical path divergence correction
3. Extremely low thermal expansion & high heat resistance, no thermal deformation under long-time high-power UV laser irradiation
4. Ultra-precision polished surface, consistent focal length batch stability, low stray light interference
5. Customizable aperture, focal length, AR coating spectrum and edge shape to match UV laser, spectral analysis and precision measurement equipment
6. No bubble, no striation high-purity fused silica blank, low internal light absorption, stable long-term optical performance
 

Typical Application Scenarios

 
- Deep ultraviolet UV laser marking & engraving equipment
- Fiber laser beam expansion optical modules
- Laboratory UV-visible infrared spectrometers
- Precision industrial optical measuring instruments
- Semiconductor wafer inspection optical systems
- Medical UV optical diagnosis assemblies
 

OEM Manufacturing Capability

 
We provide full one-stop fused silica optical processing including fused quartz blank cutting, ultra-precision CNC grinding, high-precision surface polishing, wavelength-matched AR coating, black edge treatment, strict UV transmittance testing and surface figure inspection.
Prototype sampling, small-batch trial production and mass manufacturing are supported. Every fused silica plano-concave lens is fully tested to meet customer-specified spectral, dimensional and laser resistance requirements before delivery.
 

Standard FAQ

 

1. What is the main function of plano-concave fused silica lens?
It is a negative diverging lens, mainly used to expand laser beam, adjust optical path divergence angle, match optical system focal length; fused silica material supports deep UV laser that ordinary optical glass cannot transmit.
2. What advantages does fused silica have over BK7 optical glass?
Fused silica can transmit deep ultraviolet light below 300nm, with ultra-low thermal expansion and high temperature resistance, suitable for UV laser and high-temperature optical environments; BK7 glass only transmits 400nm and above visible light.
3. Can I customize focal length and anti-reflection coating for this lens?
Yes, we support custom aperture, negative focal length, and AR coating optimized for UV, 532nm green laser or 1064nm infrared laser working wavelength.
4. What equipment matches this fused silica plano-concave lens?
It fits UV laser marking machines, fiber laser beam expanders, laboratory spectrometers, semiconductor inspection optical systems and industrial precision measuring instruments.
5. Do you provide sample and mass production for fused silica optical lenses?
We supply prototype sampling, small trial batches and large-scale manufacturing, all fused silica lenses pass full spectral transmittance and surface quality inspection before shipment.

Related Products: 

Plano Convex Spherical Lens, 

AR Coated Optical Window, 

Laser Line Filter,

 Custom Optical Prism

Optical Domes

Infrared Optical Components



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Custom Precision Optical & Glass Components Manufacturer – Felix Glass Co., Limited.

We supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.

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Learn more from our FAQ
What is the minimum order quantity for custom precision optical glass components?

FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.

Can I get free glass samples for testing before bulk order?

Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?

A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?

All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.

Do you offer one-stop custom optical glass processing services?

Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.

CONTACT US NOW FOR A QUOTE
We will respond promptly within 1 to 5 hours and provide an optimal, formal quotation within 1 to 2 days. Partnering with us is the smartest choice—start a mutually beneficial partnership today!
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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.

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