# N-Bk7 Transmission Coated Round Sizes Laser Line Pcx Cylinder Lenses

> N-Bk7 Transmission Coated Round Sizes Laser Line Pcx Cylinder Lenses — an optical lens: Optical Glass, as Required thick, HMC. Specs, RFQ checklist and…

- Page: https://machiningglass.com/products/n-bk7-transmission-coated-round-sizes-laser-line-pcx-cylinder-lenses/
- SKU: MG-2B84EA
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/N-Bk7-Transmission-Coated-Round-Sizes-Laser-Line-Pcx-Cylinder-Lenses.webp
- Updated: 2026-10-24

Product type: Cylindrical Lenses. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 71.

## Overview

N-Bk7 Transmission Coated Round Sizes Laser Line Pcx Cylinder Lenses is an optical lens made from Optical Glass. Listed geometry: thickness as Required, cylindrical shaped lens shape. Optical / electrical data: transmittance >95%. Coating: HMC; surface quality as Required. Typical applications: Lighting, Medical, Optical and Photography. 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 | Cylindrical Lenses |
| Shape | Cylindrical Shaped Lens |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | HMC |
| Surface Quality | as Required |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 71 |
| Lenses Color | Clear |
| Polished | Yes |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Product Name | N-BK7 Transmission Coated Round Sizes Laser Line PCX Cylinder Lenses |
| Material | N-BK7 |
| Size | Dia 1mm to dia 300mm |

## What to specify when you request a quote

- **Material** — listed as “Optical Glass”; name the glass or crystal.
- **Geometry** — give diameter, focal length or radii, angles and tolerances.
- **Surface figure** — listed as “as Required”; quote surface figure (λ) and scratch-dig.
- **Centring and edges** — state centration and edge chamfer.
- **Coating** — listed as “HMC”; list the band and reflectance or transmission target.

## Engineering guides for this part

For material grades and coating options, see [Fused Silica Windows for UV and Laser Optical Systems](https://machiningglass.com/materials/fused-silica-windows-for-uv-and-laser-optical-systems/). How parts like this are machined and finished is covered in [Optical Glass Polishing for High Clarity Surfaces](https://machiningglass.com/capabilities/optical-glass-polishing-for-high-clarity-surfaces/). For an application example, read [How to Handle and Maintain Precision Glass Components in Laser Systems](https://machiningglass.com/applications/how-to-handle-and-maintain-precision-glass-components-in-laser-systems/). Before sending a drawing, check [Fused Silica Refractive Index: Key to Optical Design Improvement](https://machiningglass.com/resources/fused-silica-refractive-index-key-to-optical-design-improvement/). 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 N-Bk7 Transmission Coated Round Sizes Laser Line Pcx Cylinder Lenses made of?

It is listed as Optical Glass. Coating: HMC. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### What sizes and thicknesses are available?

The listing gives 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=16883#mg-rfq

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