# Mega-9 Glass Bp829 Band Pass Optical Filter for Medical Fluorescence Microscopy

> Mega-9 Glass Bp829 Band Pass Optical Filter for Medical Fluorescence Microscopy — a bandpass filter: Glass, 1mm-2mm thick, 829. Specs, RFQ checklist and…

- Page: https://machiningglass.com/products/mega-9-glass-bp829-band-pass-optical-filter-for-medical-fluorescence-microscopy/
- SKU: MG-E87125
- Category: Optical Filters > Bandpass & Interference Filters
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Mega-9-Glass-Bp829-Band-Pass-Optical-Filter-for-Medical-Fluorescence-Microscopy.webp
- Updated: 2026-10-24

Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Machine Vision. Model: BP829/17K.

## Overview

Mega-9 Glass Bp829 Band Pass Optical Filter for Medical Fluorescence Microscopy: a bandpass filter made from Glass. Listed geometry: thickness 1mm-2mm. Optical / electrical data: wavelength 829. Typical applications: Lighting, Medical, Optical and Machine Vision. 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 | Thin Film Filter |
| Shape | Customized |
| Usage | Lighting, Medical, Optical, Machine Vision |
| Model NO. | BP829/17K |
| Thickness Range | 1mm-2mm |
| Color | White |
| Principle | Interference Filter |
| Angle of incidence | 0° |
| Center Wavelength(Nm) | 829 |
| Bandwidht(Nm) | 17 |
| Tpeak(%) | >90 |
| Od | 3 |
| Over(Nm | 200-1200 |
| Center Wavelength (CWL) | Precisely positioned with a customization accuracy of up to ±0.25nm to ensure perfect matching with the emission spectrum of light sources and detector sensitivities. |
| Peak Transmittance (Tpeak) | High-transmission dielectric coating with typical peak transmittance >90% (up to >95% for specific bands), maximizing the retention of the effective signal light. |
| Bandwidth (FWHM) | Available in a wide range of options, from ultra-narrow band (<3nm), narrow band (3-20nm) to broadband (>20nm), catering to different spectral resolution requirements. |
| Warranty Period | 2 Years |
| Technology | Free technical support and solutions provided |
| Supplier | Shanghai Mega-9 Optoelectronic Co., Ltd. |

## Technical data

|   |   |   |   |
| --- | --- | --- | --- |
| Model | 532 | 635 | 850 |
| Center Wavelength (nm) | 532 ± 0.25 | 635 ± 0.25 | 850 ± 0.25 |
| Bandwidth (FWHM, nm) | 3.0 ± 0.5 | 10.0 ± 1.0 | 25.0 ± 2.0 |
| Peak Transmittance (%) | ≥ 90 | ≥ 92 | ≥ 95 |

## What to specify when you request a quote

- **Spectral target** — listed as “829”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- **Blocking** — listed as “3”; give the blocking range and optical density (OD) the system needs.
- **Angle of incidence** — listed as “0°”; 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/). How parts like this are machined and finished is covered in [Custom Precision Glass Machining for Complex Components](https://machiningglass.com/capabilities/custom-precision-glass-machining-for-complex-components/). 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/). Before sending a drawing, check [Choosing Glass Materials for Optical & Industrial Components](https://machiningglass.com/resources/choosing-glass-materials-for-optical-industrial-components/). A related standard product is [Bandpass Filter](https://machiningglass.com/products/bandpass-filter/).

## FAQ

### What is the Mega-9 Glass Bp829 Band Pass Optical Filter for Medical Fluorescence Microscopy 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 829. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this bandpass filter used?

Listed applications: Lighting, Medical, Optical and Machine Vision.

### 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=10711#mg-rfq

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