# Custom Optical Bk7 Glass Aspherical Diameter 50mm Plano Convex Lens with Ar Coating

> Custom Optical Bk7 Glass Aspherical Diameter 50mm Plano Convex Lens with Ar Coating — an optical lens: Optical Glass. Specs, RFQ checklist and custom…

- Page: https://machiningglass.com/products/custom-optical-bk7-glass-aspherical-diameter-50mm-plano-convex-lens-with-ar-coating/
- SKU: MG-24FC83
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Custom-Optical-Bk7-Glass-Aspherical-Diameter-50mm-Plano-Convex-Lens-with-Ar-Coating.webp
- Updated: 2026-10-24

Product type: Aspheric Lens. Application: Optical.

## Overview

Custom Optical Bk7 Glass Aspherical Diameter 50mm Plano Convex Lens with Ar Coating: an optical lens made from Optical Glass. Listed geometry: aspheric lens shape. Optical / electrical data: transmittance >95%. Listed for Optical 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 | Aspheric Lens |
| Shape | Aspheric Lens |
| Transmittance | >95% |
| Usage | Optical |
| Lenses Color | Clear |
| Supplier | Shenyang Ebetter Optics Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Product Name | Aspherical lens |
| Diameter &Tolerance | 3-300±0.025mm |
| Clear aperture | >90% |
| Thickenss &Tolerance | 0.5-50±0.05mm |
| Surface Flatness | 1/10 Lambda |
| Surface Quality | 20-10 |
| Material | N-BK7,Quartz, Sapphire, CaF2, Ge,Si,ZnSe |
| Beveling | 0.25±0.1mm |
| Coating | AR coatimg/Reflective coating/Dichroic film |

## 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** — quote surface figure (λ) and scratch-dig.
- **Centring and edges** — state centration and edge chamfer.
- **Coating** — list the band and reflectance or transmission target.

## Engineering guides for this part

For material grades and coating options, see [AR-Coated Glass Materials for High-Transmission Optical Parts](https://machiningglass.com/materials/ar-coated-glass-materials-for-high-transmission-optical-parts/). 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 [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 [AR-Coated High-Transparency Optical Glass](https://machiningglass.com/products/ar-coated-high-transparency-optical-glass/).

## FAQ

### What is the Custom Optical Bk7 Glass Aspherical Diameter 50mm Plano Convex Lens with Ar Coating made of?

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

### 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: Optical.

### 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=16095#mg-rfq

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