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black meniscus infrared lens, Multi-Substrate CaF2 ZnSe ZnS Ge MgF2 Si Concave-Convex Infrared Lens

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Categories	Custom Special Optical Lenses
Brand	FELIX GLASS optical glass Manufacturing base
Model	FG-IR-MEN-BLACKEDGE
Material	CaF2, ZnSe, ZnS, Germanium, MgF2, Silicon multi infrared crystal substrates
Lens Structure	Meniscus Concave-Convex Single Element
Edge Treatment	Full Circumference Matte Blackened Edge
Optional Coating	Multi-Band IR Anti-Reflection Coating
Core Application Field	Thermal Imaging, CO₂ Laser, IR Spectroscopy, Aerospace IR Detection
FOB port	SHENGZHEN SHANGHAI GUANGZHOU
Terms of Payment	L/C, D/A, D/P, Western Union
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Detail Information

Edge Blackened Meniscus Concave-Convex Infrared Lens With Multi Optional IR Crystal Substrates

Felix Glass black meniscus infrared lens is a single-element concave-convex meniscus optical part specially designed for all types of infrared optical systems. We provide six mainstream infrared crystal substrates for customers to select: Calcium Fluoride (CaF2), Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Germanium (Ge), Magnesium Fluoride (MgF2), Silicon (Si), covering deep UV, near-infrared, mid-wave infrared and long-wave infrared full spectrum demands.

The lens adopts meniscus concave-convex curvature design, which can realize precise focusing or divergent shaping of infrared beam, effectively reduce spherical aberration compared with flat lens. The full circumference edge is coated with matte black paint, which absorbs scattered stray light reflected from lens edge, eliminates ghost image and improves imaging contrast of infrared thermal cameras and infrared laser equipment. Custom multi-band AR anti-reflection coating can be deposited on two optical surfaces to maximize infrared transmittance.

Core Optical Specifications

- Optional Substrate Materials: CaF2, ZnSe, ZnS, Ge, MgF2, Silicon (Si)

- Lens Structure: Single piece meniscus concave-convex (one convex surface + one concave surface)

- Edge Treatment: Full matte black paint coating, stray light absorption & suppression

- Custom Parameter: Custom diameter, thickness, positive/negative focal length, curvature radii

- Optional Coating: Custom AR coating matched to UV/MWIR/LWIR/CO₂ laser wavelength

- Surface Quality: Standard 60-40 scratch-dig, upgradeable to aerospace grade 20-10

- Surface Flatness: ≤ λ/10 @632.8nm precision polishing standard

- Working Temperature: -60℃ ~ +130℃ stable for industrial & aerospace infrared equipment

Material Spectrum Matching Guide

1. CaF2 / MgF2: 0.15–7μm deep UV to mid-infrared, for infrared spectrometers, UV infrared dual-spectrum equipment

2. ZnSe / ZnS: 0.5–22μm visible + full infrared, for multi-spectrum night vision, 10.6μm CO₂ laser

3. Ge: 2–16μm LWIR, opaque to visible light, single-band thermal imaging, industrial temperature measurement

4. Silicon Si: 1–7μm mid-infrared, low thermal expansion, infrared laser ranging sensor optical path

Core Product Advantages

1. Six mainstream infrared crystal substrates optional, cover all infrared band application scenarios, one lens model matches thermal imaging, infrared laser, spectral detection equipment

2. Meniscus concave-convex optical structure, superior aberration correction ability, higher infrared imaging clarity than plano-convex/plano-concave lens

3. Full black edge matte coating thoroughly absorbs edge stray light, eliminates ghost image, greatly improves infrared signal-to-noise ratio

4. Each substrate supports customized wavelength-matched AR coating, maximize infrared light transmittance and reduce energy loss

5. Ultra-precision double-sided polishing, stable focal length consistency in mass production, low thermal deformation under continuous infrared irradiation

6. Fully customizable outline, focal length, coating spectrum and edge black paint thickness to match customer infrared optical system drawings

Typical Application Scenarios

- 8–14μm long-wave infrared thermal imaging cameras & vehicle night vision systems

- 10.6μm CO₂ industrial laser cutting, marking, monitoring optical modules

- Mid-wave infrared industrial high-temperature online temperature measurement equipment

- Laboratory UV-IR Fourier transform infrared spectrometers

- Aerospace infrared remote sensing & infrared star tracking optical assemblies

- Semiconductor infrared detection & infrared laser ranging sensor modules

OEM Manufacturing Capability

We provide full one-stop infrared crystal optical processing including multi-substrate blank cutting, ultra-precision CNC grinding, meniscus double-sided polishing, edge black paint coating, multi-band AR coating deposition, strict spectral transmittance testing and stray light suppression inspection.

Prototype sampling, small-batch trial production and mass manufacturing are supported. Every black-edge meniscus infrared lens is fully tested to meet customer-specified substrate, spectral and dimensional requirements before delivery.

Standard FAQ

1. What is the function of black edge coating on this meniscus infrared lens?

Matte black paint on lens edge absorbs stray light reflected from crystal sidewall, eliminates ghost image and light flare, improves imaging contrast and signal-to-noise ratio of infrared thermal & laser systems.

2. How to choose the suitable substrate among CaF2, ZnSe, ZnS, Ge, MgF2, Si?

Select according to working wavelength: CaF2/MgF2 for UV-MWIR spectrum; ZnSe/ZnS for multi-spectrum & CO₂ laser; Ge for pure 8-14μm thermal imaging; Si for 1-7μm mid-infrared laser ranging.

3. Can I customize focal length and anti-reflection coating for this meniscus lens?

Yes, we support custom positive/negative focal length, lens diameter, and AR coating optimized for target infrared band (3–5μm / 8–14μm /10.6μm CO₂ laser).

4. What infrared equipment is this multi-substrate meniscus lens suitable for?

It matches LWIR thermal imagers, CO₂ laser equipment, industrial infrared temperature measuring instruments, laboratory spectrometers and aerospace infrared detection optical modules.

5. Do you provide sample service for different substrate meniscus infrared lenses?

We offer single substrate sample trial, mixed multi-substrate batch production, all lenses pass full spectral transmittance and stray light 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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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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*Title

*Content

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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.

✔ROHS CE certified ISO9001:2005 quality management system
✔Professional team over 19 years’ experience under Japanese management system
✔Help over 2000+ companies to make prototypes into mass production successfully
✔Challenge the 100% on time delivery goal 100% full inspection report
✔Cost-down solutions for over 2000+ companies with success
✔Free solutions provided based on different industries
✔Support free samples (quick sample production) Small quantity (100-1000pcs) available

WhatsApp: +86 189 9805 2888
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URL: www.felixglass.com

james@felixglass.com: +86 185 6503 2888

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