# Optics N-Bk7/HK9l/UV/Fused Silica/Jgs1 Optical Lens with Bbar Coating

> Optics N-Bk7/HK9l/UV/Fused Silica/Jgs1 Optical Lens with Bbar Coating — an optical lens: Optical Glass, as Required thick, Ar or Reflecting Coating Based…

- Page: https://machiningglass.com/products/optics-n-bk7-hk9l-uv-fused-silica-jgs1-optical-lens-with-bbar-coating/
- SKU: MG-A00928
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Optics-N-Bk7-HK9l-UV-Fused-Silica-Jgs1-Optical-Lens-with-Bbar-Coating.webp
- Updated: 2026-10-24

Product type: Spherical Lenses. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 16.

## Overview

The Optics N-Bk7/HK9l/UV/Fused Silica/Jgs1 Optical Lens with Bbar Coating is supplied as an optical lens made from Optical Glass. Listed geometry: diameter +0/-0.01, thickness as Required, single-lens shape. Optical / electrical data: transmittance >95%. Coating: Ar or Reflecting Coating Based on Customers' Need; surface quality 10-5. Listed for Lighting, Medical, Optical and Photography applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Optical Glass |
| Type | Spherical Lenses |
| Shape | Single-lens |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | Ar or Reflecting Coating Based on Customers' Need |
| Surface Quality | 10-5 |
| Clear Aperture | 90%-100% |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 16 |
| Lenses Color | Clear |
| Diameter Tolerance | +0/-0.01 |
| Tolerance of CT | +/-0.02 |
| Vector Tolerance | +/-0.015 |
| Curvature Tolerance | +/-0.01% |
| Centration | 30seconds |
| Focal Length | +/-1% |
| Edge Chip | <0.1mm |
| Bevel | as Required |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Product Name | Optics N-Bk7/HK9L/UV/Fused Silica/JGS1 Optical Lens with BBAR Coating |
| Size | Dia 1mm-Dia 300mm |
| Shape | Plano-Concave, Plano-Convex, Bi-Convex, Bi-Concave, Meniscus, Achromatic |

## What to specify when you request a quote

- **Material** — listed as “Optical Glass”; name the glass or crystal.
- **Geometry** — listed as “+0/-0.01”; give diameter, focal length or radii, angles and tolerances.
- **Surface figure** — listed as “10-5”; quote surface figure (λ) and scratch-dig.
- **Centring and edges** — listed as “30seconds”; state centration and edge chamfer.
- **Coating** — listed as “Ar or Reflecting Coating Based on Customers' Need”; list the band and reflectance or transmission target.

## Engineering guides for this part

For material grades and coating options, see [JGS1 Quartz Glass for UV Optical and Precision Components](https://machiningglass.com/materials/jgs1-quartz-glass-for-uv-optical-and-precision-components/). How parts like this are machined and finished is covered in [Flat Glass Polishing Process for Precision Substrates](https://machiningglass.com/capabilities/flat-glass-polishing-process-for-precision-substrates/). For an application example, read [AR Coated Glass for Appliance Touch Screens: Specs and Selection](https://machiningglass.com/applications/ar-coated-glass-for-appliance-touch-screens-specs-and-selection/). Before sending a drawing, check [Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica](https://machiningglass.com/resources/quartz-glass-manufacturing-controlling-thermal-conductivity-in-fused-silica/). A related standard product is [Fused Silica Glass Wafers (2–12", JGS1/JGS2)](https://machiningglass.com/products/fused-silica-glass-wafers-2-12-jgs1-jgs2/).

## FAQ

### What is the Optics N-Bk7/HK9l/UV/Fused Silica/Jgs1 Optical Lens with Bbar Coating made of?

It is listed as Optical Glass. Coating: Ar or Reflecting Coating Based on Customers' Need. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### What sizes and thicknesses are available?

The listing gives diameter +0/-0.01, thickness as Required. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

### What optical or electrical performance does it have?

Listed values: transmittance >95%. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this optical lens used?

Listed applications: Lighting, Medical, Optical and Photography.

### What should I include in a quote request?

Include material, geometry, surface figure, centring and edges and coating, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=16945#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/