# Optical Lenses/Gradient Index Lens/Focusing Lens/Glasses Lens

> Optical Lenses/Gradient Index Lens/Focusing Lens/Glasses Lens — an optical lens: Optical Glass, 488-694 Nm/700-950nm, Dielectric Coating. Specs, RFQ…

- Page: https://machiningglass.com/products/optical-lenses-gradient-index-lens-focusing-lens-glasses-lens/
- SKU: MG-AEFFB3
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Optical-Lenses-Gradient-Index-Lens-Focusing-Lens-Glasses-Lens.webp
- Updated: 2026-10-24

Product type: Focusing Lens. Application: Lighting, Medical, Optical, Photography. Model: RAY-LH215#.

## Overview

Optical Lenses/Gradient Index Lens/Focusing Lens/Glasses Lens: an optical lens made from Optical Glass. Optical / electrical data: wavelength 488-694 Nm/700-950nm. Coating: Dielectric Coating; surface quality 40-20 Scratch-Dig or Custom Manufacturing; flatness Lambda/10 at 632.8nm with Power Removed. 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 | Focusing Lens |
| Shape | Customized |
| Wavelength Range | 488-694 Nm/700-950nm |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | RAY-LH215# |
| Lenses Color | Customized |
| Surface Flatness | Lambda/10 at 632.8nm with Power Removed |
| Coating Type | Dielectric Coating |
| Product category | One way to divide the lens is to divide it according to the beam focusing method, which is to use two focusing heads of reflective and transmissive focusing optical systems. |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |

## 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 “40-20 Scratch-Dig or Custom Manufacturing”; quote surface figure (λ) and scratch-dig.
- **Centring and edges** — state centration and edge chamfer.
- **Coating** — listed as “Dielectric Coating”; list the band and reflectance or transmission target.

## Engineering guides for this part

For material grades and coating options, see [Selecting Fused Silica and Quartz Glass for Precision Components](https://machiningglass.com/materials/selecting-fused-silica-and-quartz-glass-for-precision-components/). 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 [Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems](https://machiningglass.com/applications/boost-yield-with-fused-silica-viewports-for-vacuum-and-optical-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 Optical Lenses/Gradient Index Lens/Focusing Lens/Glasses Lens made of?

It is listed as Optical Glass. Coating: Dielectric Coating. 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: wavelength 488-694 Nm/700-950nm. 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=15893#mg-rfq

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