Is the sapphire lens suitable for humid environments?

Yes, because sapphire is non-hygroscopic, it does not fog or degrade in humid observatory environments.

What coatings are available for solar viewing applications?

A narrow band coating is available that blocks harmful ultraviolet and infrared while passing the hydrogen alpha line at 656 nm.

Large Aperture Sapphire Optical Lens for Astronomical Telescopes and Solar Viewing

Name: Large Aperture Sapphire Optical Lens for Astronomical Telescopes and Solar Viewing
Brand: Hefei Ezenda Technology Co., Ltd.
SKU: 2156580712

Anhui, ChinaHefei Ezenda Technology Co., Ltd.

US$1.00-20.00

10 Pieces

Product profile

Customization

Available

After-sales Service

Shelf Life One Year (Under Normal Use Conditions)

Warranty

12 Months

Model NO.

Lens008

Usage

Medical, Optical

Type

Convex Lens

Transmittance

>95%

Shape

Single-lens

Material

Sapphire

Lenses Color

Clear

Certification

ISO9001

Customized

Coating

Transport Package

Standard Package

Specification

D25*5mm

Trademark

Ezenda

Origin

Made in China

HS Code

9001909001

Production Capacity

50000PCS/Years

Key features

High Transmittance: Uncoated transmission is about 86% from 500 nm to 2500 nm.

Low Autofluorescence: Material has very low autofluorescence, ideal for deep sky observation.

Solar Protection: Narrow band coating blocks harmful UV and IR while passing H-alpha line.

Thermal Stability: High thermal conductivity prevents thermal distortion in solar telescopes.

Humidity Resistant: Non-hygroscopic sapphire does not fog or degrade in humid environments.

Customizable Options: Customized coating, dimensions, and configurations available upon request.

Precision Quality: Surface figure lambda/10 at 633 nm and roughness below 0.5 nm RMS.

Comprehensive Warranty: Standard 12-month warranty with optional extended coverage up to 24 months.

Company profile

Hefei Ezenda Technology Co., Ltd.Anhui, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2016-01-01Nearest Port: HeifeiAverage Response Time: ≤8.82hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW

AI-Powered supplier vetting

SummaryHefei Ezenda Technology Co., Ltd. is identified as both a trading company and manufacturer/factory in Hefei, China, specializing in laser, nonlinear, and optical crystals and related optical components. Its stated capabilities include in-house crystal growth, precision optical fabrication, customization, technical consultation, prototyping, and volume support. The supplier reports two production lines, fewer than five quality-control staff, six to ten years of R&D engineer experience, broad export coverage, and export activity since 2016. Evidence supports manufacturing, customization, and innovation-related strengths, but no certification records or customer cases are provided. Financial credibility cannot be assessed from the available non-financial evidence.

Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory, with products spanning laser crystals, nonlinear crystals, optical crystals, optical components, and cameras. This indicates a combined manufacturing and trading business model rather than a purely distributive role.

R&D capabilityThe supplier describes research, development, and production of laser crystals using primarily the Czochralski method, along with integrated control from raw crystal growth to coated optical assemblies. Its stated collaborative engineering, customization, and six-to-ten-year R&D engineer experience support an innovation capability assessment, although no patents or independently verified technical achievements are provided.

Production capacityThe supplier reports in-house production from crystal growth through optical fabrication, including diamond-wire and multi-wire sawing, with two production lines and support for prototyping to volume production. It also reports one-month off-peak lead times and two-to-three-month peak-season fulfillment, indicating defined production operations, though capacity scale is not fully established.

Customization capabilityThe supplier explicitly offers customization of doping concentration, crystallographic orientation, and boule dimensions to meet gain, thermal, and spectral requirements. It also provides design-stage technical consultation and processes crystals into finished substrates and complex optical components, directly supporting a strong customization capability.