# Optical Interference Microscopy Fluorescence Red Filter

> Optical Interference Microscopy Fluorescence Red Filter — a bandpass filter: Glass, 1mm-2mm thick. Specs, RFQ checklist and custom sizes to drawing.

- Page: https://machiningglass.com/products/optical-interference-microscopy-fluorescence-red-filter/
- SKU: MG-AEDD09
- Category: Optical Filters > Bandpass & Interference Filters
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Optical-Interference-Microscopy-Fluorescence-Red-Filter.webp
- Updated: 2026-10-24

Product type: Interference Filter. Application: Medical, Thermal Image. Model: STF5y.

## Overview

Optical Interference Microscopy Fluorescence Red Filter is a bandpass filter made from Glass. Listed geometry: thickness 1mm-2mm. Optical / electrical data: bandwidth 3-50nm. Surface quality 60-40; flatness 1/4 Lambda. Listed for Medical and Thermal Image 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 | Interference Filter |
| Shape | Customized |
| Fwhm | 3-50nm |
| Surface Quality | 60-40 |
| Flatness | 1/4 Lambda |
| Usage | Medical, Thermal Image |
| Model NO. | STF5y |
| Color | Blue |
| Principle | Selective Absorption Filter |
| Angle of incidence | 0° |
| Tolerance | +/-0.05mm |
| Thickness Range | 1mm-2mm |
| Supplier | Changchun Sunday Optics Co., Ltd. |

## Technical data

|   |   |   |   |   |   |
| --- | --- | --- | --- | --- | --- |
| CWL(nm) | FWHM(nm) | Tmax(%) | Blocking Wavelength Range | Blocking | Size |
| 295 | 12+/-2nm | T≥20% | 200-2000nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 420 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 465 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 510 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 525 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 562 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 589 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 605 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 620 | 8+/-2nm | T≥45% | 200-1100nm | OD6 | φ10 φ12 φ15 |
| 625 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 665 | 8+/-2nm | T≥45% | 200-2000nm | OD6 |  |
| 730 | 10+/-2nm | T≥80% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 870 | 30+/-2nm | T≥85% | 200-1200nm | OD5 | φ10 φ12 |
| 900 | 25+/-2nm | T≥85% | 200-1200nm | OD5 | φ30 |
| 915 | 30+/-2nm | T≥85% | 200-1200nm | OD5 | φ10 φ12 |
| 920 | 20+/-2nm | T≥20% | 200-1200nm | T<10-4 | φ30 |

| Parameter | Value |
| --- | --- |
| Diameter | 2mm to 200mm |
| Diameter Tolerance | +0.00/-0.1 or customer size |
| Material | N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc. |
| Surface Quality | 80-50 to 10/5 |
| Flatness | 1/4 lambda |
| Thickness Tolerance | +0.00/-0.05mm |
| Standard wavelength | 270nm,311,360,380,473,532,650,780,808,850,904,940,1064 and 1900nm. |
| FWHM | 5nm to 50nm |
| Transmission | 60% to 99% |
| Average blocking | OD6 |

## What to specify when you request a quote

- **Spectral target** — listed as “3-50nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- **Blocking** — 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** — listed as “60-40”; 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/). Before sending a drawing, check [Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica](https://machiningglass.com/resources/quartz-glass-manufacturing-controlling-thermal-conductivity-in-fused-silica/). A related standard product is [Bandpass Filter](https://machiningglass.com/products/bandpass-filter/).

## FAQ

### What is the Optical Interference Microscopy Fluorescence Red Filter 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: bandwidth 3-50nm. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this bandpass filter used?

Listed applications: Medical and Thermal Image.

### 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=9815#mg-rfq

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