# High – Quality Optical Filter Long – Wave Pass Filter Bandpass Filter for Optical Systems in – Stock Narrow Bandpass Filter Products

> High - Quality Optical Filter Long - Wave Pass Filter Bandpass Filter for Optical Systems in - Stock Narrow Bandpass Filter Products — a bandpass filter…

- Page: https://machiningglass.com/products/high-quality-optical-filter-long-wave-pass-filter-bandpass-filter-for-optical-systems-in-stock-narrow-bandpass-filter-products/
- SKU: MG-2F34D1
- Category: Optical Filters > Bandpass & Interference Filters
- Image: https://machiningglass.com/wp-content/uploads/2026/10/High-Quality-Optical-Filter-Long-Wave-Pass-Filter-Bandpass-Filter-for-Optical-Systems-in-Stock-Narrow-Bandpass-Filter-Products.webp
- Updated: 2026-10-24

Product type: Color Filter. Application: Optical.

## Overview

High - Quality Optical Filter Long - Wave Pass Filter Bandpass Filter for Optical Systems in - Stock Narrow Bandpass Filter Products: a bandpass filter made from Glass. Listed geometry: thickness 1mm-2mm, round shape. Optical / electrical data: wavelength 245 - 1064 Nm, bandwidth 5 Nm 10nm; 20nm; 30nm; 50nm or Custom. 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 | Glass |
| Type | Color Filter |
| Shape | Round |
| Usage | Optical |
| Thickness Range | 1mm-2mm |
| Color | Colorful |
| Principle | Cut-off Filter |
| Central Wavelength | 245 - 1064 Nm |
| Half Bandwidth | 5 Nm 10nm; 20nm; 30nm; 50nm or Custom |
| Cut-off Range | 200 - 1200nm |
| Optical Density | Od3; Od4; Od5; Od6 |
| Supplier | Tianjin Fushi Optical Technology Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Product Name | Band-pass Filter |
| Transmittance | T>90% |
| Thickness | 1.1 ±0.1mm or Custom |
| Dimension Tolerance | Custom |
| AOI | 0° |
| Surface Quality (SQ) | 60-40 Scratch & Dig |
| Clear Aperture (CA) | 90% |
| Blocking | 350-2000nm Except for Transmission Band |

## What to specify when you request a quote

- **Spectral target** — listed as “245 - 1064 Nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- **Blocking** — listed as “Od3; Od4; Od5; Od6”; give the blocking range and optical density (OD) the system needs.
- **Angle of incidence** — interference filters shift with angle, so specify the operating angle and cone.
- **Size and thickness** — listed as “1mm-2mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- **Substrate** — listed as “Glass”; name the substrate glass if thermal or UV behaviour matters.
- **Surface quality** — quote scratch-dig for imaging paths.

## Engineering guides for this part

For material grades and coating options, see [Selecting Bandpass Filter Glass for Reliable Optical Performance](https://machiningglass.com/materials/selecting-bandpass-filter-glass-for-reliable-optical-performance/). For an application example, read [Bandpass Filter Glass for Appliance Light Detection Modules](https://machiningglass.com/applications/bandpass-filter-glass-for-appliance-light-detection-modules/). A related standard product is [Bandpass Filter](https://machiningglass.com/products/bandpass-filter/).

## FAQ

### What is the High - Quality Optical Filter Long - Wave Pass Filter Bandpass Filter for Optical Systems in - Stock Narrow Bandpass Filter Products made of?

It is listed as Glass. 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 1mm-2mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

### What optical or electrical performance does it have?

Listed values: wavelength 245 - 1064 Nm, bandwidth 5 Nm 10nm; 20nm; 30nm; 50nm or Custom. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this bandpass filter used?

Listed applications: Optical.

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

Include spectral target, blocking, angle of incidence, size and thickness and substrate, 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=10955#mg-rfq

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