# Metallic Coating Optical Glass Flat Reflective Mirror

> Metallic Coating Optical Glass Flat Reflective Mirror — an optical mirror: Glass. Specs, RFQ checklist and custom sizes to drawing.

- Page: https://machiningglass.com/products/metallic-coating-optical-glass-flat-reflective-mirror/
- SKU: MG-29BB6C
- Category: Optical Lenses, Prisms & Mirrors > Optical Mirrors & Reflective Substrates
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Metallic-Coating-Optical-Glass-Flat-Reflective-Mirror.webp
- Updated: 2026-10-24

Application: Labs.

## Overview

Metallic Coating Optical Glass Flat Reflective Mirror is an optical mirror made from Glass. Listed geometry: plano shape. It is used in Labs. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Glass |
| Shape | Plano |
| Application | Labs |
| Supplier | Shenyang Ebetter Optics Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Diameter Tolerance | +0.0/-0.1mm |
| Thickness Tolerance | ±0.1mm |
| Surface Flatness | λ1/4 |
| Surface Quality | 60/40, 40/20 or better |
| Clear Aperture | >90% |
| Coating | Custom |
| Bevel | Protective bevel as needed |
| Angle Tolerance | <1 arc min |

## What to specify when you request a quote

- **Material** — listed as “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 [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 [Laser Glass Machining for Precision Micro Features](https://machiningglass.com/capabilities/laser-glass-machining-for-precision-micro-features/). 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 [Technical Guide to Glass Thickness and Flatness Requirements](https://machiningglass.com/resources/technical-guide-to-glass-thickness-and-flatness-requirements/). A related standard product is [Laser Beam Splitter Glass Sheet](https://machiningglass.com/products/laser-beam-splitter-glass-sheet/).

## FAQ

### What is the Metallic Coating Optical Glass Flat Reflective Mirror made of?

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

### Where is this optical mirror used?

Listed applications: Labs.

### 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=18221#mg-rfq

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