Are these lenses suitable for medical use?

Yes, the lenses are designed for use in medical, optical, and laser system applications.

What is the focal length tolerance?

The paraxial focal length has a tolerance of +/-2%.

Spherical Bk7 K9 Sapphire Plano Concave Optical Glass Lenses

Name: Spherical Bk7 K9 Sapphire Plano Concave Optical Glass Lenses
Brand: Changchun Yutai Optics Co., Ltd.
SKU: 729973972

Jilin, ChinaChangchun Yutai Optics Co., Ltd.

US$6.90-16.80

100 Pieces

Product profile

Customization

Available

Usage

Medical, Optical

Type

Concave Lens

Model NO.

yt064

Transmittance

90%-95%

Shape

Ball, Hemisphere

Material

Optical Glass

Lenses Color

Clear

Certification

RoHS

Customized

Coating

Color

Transparent

Polished

Yes

Diameter

1.5-300mm

Diameter Tolerance

+/-0.02 mm

Thickness Tolerance

+/-0.02mm

Surface Quality

60/40, 40/20 or Better

Clear Aperture

90%

Centring Error

<3 Arc Minute

Transport Package

Safety Green Carton

Specification

Origin

Changchun

HS Code

9001909090

Production Capacity

40000/Year

Key features

Customized Dimensions: Diameter range 1.5-300mm with +/-0.02mm tolerance.

High Transmittance: Optical glass lenses with 90%-95% transmittance.

Anti-Reflection Coating: Less than 0.25% reflection at design wavelength.

Versatile Coating Options: Available for Diode, HeNe, Nd:YAG lasers and various wavelengths.

Precision Surface Quality: 60/40, 40/20 or better scratch and dig specification.

RoHS Certified: Products meet RoHS environmental safety standards.

OEM/ODM Service: Full customization support for design and manufacturing.

Fast Delivery: Standard delivery within 30 days depending on quantity.

Company profile

Changchun Yutai Optics Co., Ltd.

Jilin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2017-02-08 CertifiedNearest Port: Dalian PortAverage Response Time: ≤0.49h CertifiedTerms of Payment: T/T, PayPal, Western Union

AI-Powered supplier vetting

SummaryChangchun Yutai Optics Co., Ltd. is a China-based limited company established in 2015, with 11 employees and more than 10 production lines. It offers a broad range of optical products and materials, including lenses, windows, mirrors, filters, prisms, wafers, coatings, beamsplitters, and IR optics. The supplier reports exports to Europe and North America, with exports representing 51%–70% of total sales and self-operated import/export rights. Production information indicates substantial stated output across several optical product categories. Its capabilities are supported by advanced milling, polishing, and inspection equipment, technology links with Changchun optical and university institutions, vertically integrated manufacturing, and platforms covering custom design through volume manufacturing. ISO9001 is referenced as a management system objective or framework, but certification holding is not explicitly confirmed. Evidence is insufficient to verify after-sales performance, financial credibility, or...

Supplier typeThe supplier is identified as Changchun Yutai Optics Co., Ltd., a Chinese limited company classified as a combined business entity and engaged in industrial equipment and components. Its stated product keywords and descriptions establish it as an optical-product manufacturer and supplier.

R&D capabilityEvidence supports technical capability through a broad range of optical materials and products, technology support from optical and university institutions, advanced milling, polishing, and inspection equipment, and multiple technology platforms. The supplier also describes a process spanning custom design, pilot production, and volume manufacturing, indicating demonstrated development infrastructure.

Production capacityThe supplier reports more than 10 production lines, stated output across lenses, filters, prisms, windows, and mirrors, vertically integrated manufacturing facilities, advanced production equipment, and stock availability for tens of thousands of lenses. These details provide explicit evidence of established production capacity and breadth.

Customization capabilityThe supplier offers specialized and varied optical products, including IR, toroidal, cylindrical, telecentric, beam-expander, and machine-vision lenses, and explicitly describes a workflow from custom design through pilot and volume manufacturing. This supports a positive assessment of customization capability.