What should we do if the quality is not good?

We provide repair services or a full refund.

Optical K9 Glass Dia. 18mm Bi Convex Magnifier Lens

Name: Optical K9 Glass Dia. 18mm Bi Convex Magnifier Lens
Brand: Changchun Sunday Optics Co., Ltd.
SKU: 790946492

Jilin, ChinaChangchun Sunday Optics Co., Ltd.

US$2.00-100.00

1 pc

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Usage

Optical, Infrared Image

Type

Achromatic Lenses

Model NO.

SRY40

Transmittance

>95%

Shape

Cemented Lenses

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

1-600mm

Trademark

Sunday Optics

Origin

China, Changchun

HS Code

9001909090

Production Capacity

50000PCS Per Month

Key features

High Precision Manufacturing: Flatness up to 1/20 Lambda with Zygo test report for optical accuracy.

Wide Material Selection: Available in K9, Quartz, BK7, Germanium, Silicon, ZnSe, and Sapphire.

Customizable Dimensions: Diameters from 1mm to 600mm with customer-specific tolerance options.

Diverse Coating Options: Single or multiple layers AR coating with custom wavelength design available.

Comprehensive Testing: Full size test reports covering focal length, flatness, and coating curves.

Low Minimum Order Quantity: Accepts orders starting from just 1 piece for samples or small batches.

Fast Sample Delivery: Sample production time ranges from 10 to 20 days depending on specifications.

Quality Guarantee: Offers repair services or full money back for quality issues.

Company profile

Changchun Sunday Optics Co., Ltd.

Jilin, China

Business Type: Manufacturer/FactoryExport Year: 2013-05-09Nearest Port: beijing, shanghai, shenzhenAverage Response Time: ≤9.02hTerms 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.