What applications are these lenses suitable for?

They are used in telescopes, cameras, collimators, laser systems, and infrared imaging.

Do you provide quality test reports?

Yes, we focus on high precision lenses and provide Zygo test reports.

What are the payment terms?

We accept LC, T/T, PayPal, Western Union, Small-amount payment, and Money Gram.

2inches 50.8mm Plano Convex Spherical Glass Lens Bk7 K9 Optical

Name: 2inches 50.8mm Plano Convex Spherical Glass Lens Bk7 K9 Optical
Brand: Changchun Sunday Optics Co., Ltd.
SKU: 939464555

Jilin, ChinaChangchun Sunday Optics Co., Ltd.

US$2.00-5.00

50 pc

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Usage

Optical, Infrared Image

Type

Convex Lens

Model NO.

SRY566

Transmittance

>95%

Shape

Single-lens

Material

K9 Quartz Bk7 Corning7980 Germanium Silicon Znse

Lenses Color

Clear

Certification

RoHS, CE

Customized

Coating

Polish+Coating

Flatness

1/20 Lambda

Tolereance

+0.00/-0.01mm

Surface Quality

10-5

Certeration

<1arcmin

Transport Package

Plastic Box

Specification

0.1-600mm

Trademark

Sunday Optics

Origin

China, Changchun

HS Code

9001909090

Production Capacity

50000PCS Per Month

Key features

High Precision Manufacturing: Features Zygo test reports with flatness up to 1/20 lambda and centeration under 3 arcmin.

Wide Material Selection: Available in K9 Quartz, Bk7, Germanium, Silicon, ZnSe, Sapphire, and UVFS.

Customized Dimensions: Diameter ranges from 0.1mm to 600mm with customer-specific tolerance options.

Advanced Coating Options: Offers AR, MgF2, and multi-layer coatings for broad wavelength ranges.

Versatile Lens Types: Manufactures plano convex, plano concave, bi-convex, bi-concave, and meniscus lenses.

High Transmittance: Optical lenses provide transmittance greater than 95%.

Strict Quality Control: Surface quality up to 10-5 with clear aperture exceeding 90% of diameter.

Global Certification: Products certified with RoHS and CE standards for international compliance.

Company profile

Changchun Sunday Optics Co., Ltd.

Jilin, China

Business Type: Manufacturer/FactoryExport Year: 2013-05-09Nearest Port: beijing, shanghai, shenzhenAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CIF, DDP, CIP

AI-Powered supplier vetting

SummaryChangchun Sunday Optics Co., Ltd. is identified as a Chinese manufacturer/factory specializing in optical components, including lenses, prisms, windows, filters, coatings, and optical assemblies. The supplier reports ISO 9001 certification, more than 10 production lines, 41–50 quality-control staff, 6–10 years of combined R&D engineer experience, and annual processing capacity of up to 1 million pieces. It also states that it supports both sample orders and mass production and provides after-sales service. The supplier has exported since 2013 and holds self-operated import and export rights. However, the supplied information does not provide sufficient evidence to assess financial credibility, product-specific customization capability, or the quality and scale of customer cases.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and describes its own optical-component production activities, including lenses, prisms, filters, coatings, and assemblies. This supports direct manufacturing capability rather than only trading or distribution.

CertificationsThe supplier reports holding ISO 9001 certification, indicating that a quality-management-system certification is claimed. No certification number, issuing body, scope, or validity period is provided.

After-Sales capabilityThe supplier explicitly states that it provides after-sales service for product questions to achieve customer satisfaction. The information does not specify response times, service channels, warranty terms, or service coverage.

Production capacityThe supplier reports more than 10 production lines, 41–50 quality-control staff, multiple branches, and annual processing capacity of up to 1 million pieces, with support for sample orders and mass production. Its stated equipment covers cutting, grinding, polishing, coating, and gluing, providing explicit evidence of substantial optical-component production capability.