What is the surface quality specification?

The surface quality is guaranteed at 40-20 scratch-dig, with surface accuracy of lambda/4.

What materials are used for the lens substrate?

The primary material is N-BK7 optical glass, with options from manufacturers like Corning, Ohara, and others.

What payment methods are accepted?

We accept T/T, Western Union, LC, D/P, PayPal, and small-amount payments.

Premium Double Concave Lens for Accurate Optical Performance

Name: Premium Double Concave Lens for Accurate Optical Performance
Brand: Shanghai Rui Tai Photoelectric Technology Co., Ltd.
SKU: 2242961255

Shanghai, ChinaShanghai Rui Tai Photoelectric Technology Co., Ltd.

US$45.00

100-499 Pieces

US$40.00

500-999 Pieces

US$36.00

1,000+ Pieces

Sample price:US$45.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

3r Policy-Return, Replace, Refund

Warranty

12months

Model NO.

RAYTEK-OL-0005#

Usage

Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc

Type

Bi-Convex Lenses

Transmittance

Central 90% of Diameter

Shape

Single-lens

Material

Optical Glass

Lenses Color

Clear

Certification

RoHS, ISO9001, CE

Customized

Coating

Ar.14, Ar.16, Ar.18, Ar.33 Coated

Substrate

N-Bk7 Optical Glass or Equivalent N-Bk7

Surface Quality

40-20 Scratch-Dig or Custom Manufacturing

Surface Flatness

Lambda/4 or Custom Manufacturing

Effective Focal Length(Efl)

From +6.4mm to +1000mm

Surface Accuracy, Irregularity

Lambda/4 or Custom Manufacturing

Transport Package

Cartons or Wood Case

Specification

6.35mm-50.8mm or custom manufacturing

Trademark

Raytek

Origin

China

HS Code

9002909090

Production Capacity

100000PCS Per Year

Key features

Customizable Dimensions: Sizes can be customized as per customer requests with flexible design options.

High Precision Quality: Features 40-20 scratch-dig surface quality and lambda/4 surface accuracy.

Multiple Coating Options: Available with AR.14, AR.16, AR.18, AR.33, or uncoated for various wavelengths.

3R Warranty Policy: Offers return, replace, and refund policy for inferior-quality products.

Fast Delivery Time: Standard delivery within 7-10 days for efficient project turnaround.

Premium N-BK7 Material: Made from high homogeneity N-BK7 optical glass with low bubble content.

Versatile Applications: Suitable for laser systems, optical imaging, communication, and scientific research.

Low MOQ Requirement: Minimum Order Quantity is just 1 PC, suitable for prototyping and small batches.

Company profile

High Repeat Buyers ChoiceImporters and ExportersR&D CapabilitiesManagement Certification

Shanghai Rui Tai Photoelectric Technology Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.84h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company with a stated 10,000-square-meter production base and multiple processing machines. It holds an ISO9001:2015 certificate, reports established complaint-handling and corrective-action procedures, and offers broad customization services. Export experience is stated as nine years, with exports representing 51%–70% of sales and markets including South America and Europe. Production quantities and peak-season fulfillment information are provided, but the supplier reports no new products in the past year, no ODM or SDK capability, no overseas agents, warehouses, showrooms, or inventory service. Financial information is incomplete and inconsistent across the supplied records, so financial credibility cannot be confirmed. No specific customer cases or named brand OEM experience are provided.

CertificationsThe supplier reports holding an ISO9001:2015 certificate. This is explicit evidence of a quality-management certification, but no additional certification details or validation information are provided.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaint handling. However, the quality-assurance status is unknown, so the evidence supports a positive service-process assessment but not a complete after-sales capability evaluation.

R&D capabilityThe supplier reports no new products during the past year, no ODM service, and no available SDK. These are explicit limitations in recent product innovation and development-related services.

Production capacityThe supplier describes a 10,000-square-meter production base with water-jet, CNC, milling, and other processing equipment, reports 6–10 quality-control staff, and lists production quantities for several product categories. It also states peak-season order fulfillment within 15 working days, providing explicit evidence of production resources and operational capacity.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. These services are reported consistently across the two records, indicating broad customization coverage.