# Optical Uncoated N-Bk7/Fused Silica/Corning 7979 Substrate for Industrial Camera

> Optical Uncoated N-Bk7/Fused Silica/Corning 7979 Substrate for Industrial Camera — a precision glass plate / sheet: Optical Glass, as Required thick, HMC.…

- Page: https://machiningglass.com/products/optical-uncoated-n-bk7-fused-silica-corning-7979-substrate-for-industrial-camera/
- SKU: MG-8FD73B
- Category: Perforated & Shaped Plates > Precision Glass Discs, Plates & Sheets
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Optical-Uncoated-N-Bk7-Fused-Silica-Corning-7979-Substrate-for-Industrial-Camera.webp
- Updated: 2026-10-24

Product type: Spherical Optical Lenses. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 608.

## Overview

Optical Uncoated N-Bk7/Fused Silica/Corning 7979 Substrate for Industrial Camera is a precision glass plate / sheet made from Optical Glass. Listed geometry: diameter +0/-0.01 or as Required, thickness as Required, single-lens shape. Optical / electrical data: transmittance >95%. Coating: HMC; surface quality 40-20 or Better. It is used in 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 | Spherical Optical Lenses |
| Shape | Single-lens |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | HMC |
| Surface Quality | 40-20 or Better |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 608 |
| Lenses Color | Clear |
| Bevel | Protective Bevel as Needed Products Learn More |
| Diameter Tolerance | +0/-0.01 or as Required |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Name | Optical Uncoated N-BK7/Fused Silica/Corning 7979 Substrate for Industrial Camera |
| Size | Dia 12.7mm, Dia 25.4mm, D50.8mm or others |
| Anti-Reflection Coating Options | MgF2, VIS 0°, VIS-NIR, NIR I, NIR II, VIS-EXT, and YAG-BBAR |

| Parameter | Value |
| --- | --- |
| 1.Material | Domestic or foreign materials are selected based on clients' requests |
| 2.Diameter tolerance | 0/-0.01mm |
| 3.Clear aperture | 90%-100% |
| 4.Tolerance of CT or ET | ±0.02mm |
| 5.Vector Tolerance | ±0.015mm |
| 6.Aperture Tolerance | ±0.02mm |
| 7.Surface Quality | US Standard 10-5,ISO Standard 3X0.063 |
| 8.Curvature Tolerance | ±1.5Lambda |
| 10.Centration | 30 arc seconds |
| 11.Focal Length | ±1% |
| 12.Edge Chip | <0.1mm |
| 13.Bevel | Based on clients' requests |
| 14.Coating | Apply AR or based on client requests |

## What to specify when you request a quote

- **Material** — listed as “Optical Glass”; name the glass or quartz grade.
- **Outline and thickness** — listed as “as Required”; give outline, thickness and tolerances.
- **Holes, slots and features** — listed as “Single-lens”; dimension every hole and its position tolerance on the drawing.
- **Edges** — listed as “Protective Bevel as Needed Products Learn More”; state edge finish and chamfer.
- **Surface** — listed as “40-20 or Better”; state polish and flatness where they matter.

## Engineering guides for this part

For material grades and coating options, see [Custom Borosilicate Glass Sheets Cut to Size: Precision and Performance](https://machiningglass.com/materials/custom-borosilicate-glass-sheets-cut-to-size-precision-and-performance/). How parts like this are machined and finished is covered in [Glass Wafer Cutting, Dicing, and Coring: Precision Manufacturing Process](https://machiningglass.com/capabilities/glass-wafer-cutting-dicing-and-coring-precision-manufacturing-process/). For an application example, read [Custom Ultra-Thin Glass Discs for Appliance Sensor Assemblies](https://machiningglass.com/applications/custom-ultra-thin-glass-discs-for-appliance-sensor-assemblies/). 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 [Custom LED Package Glass Cover Plate](https://machiningglass.com/products/custom-led-package-glass-cover-plate/).

## FAQ

### What is the Optical Uncoated N-Bk7/Fused Silica/Corning 7979 Substrate for Industrial Camera 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 diameter +0/-0.01 or as Required, 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 precision glass plate / sheet used?

Listed applications: Lighting, Medical, Optical and Photography.

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

Include material, outline and thickness, holes, slots and features, edges and surface, 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=6887#mg-rfq

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