Dichroic mirrors are angle-dependent
Dichroic performance changes with angle of incidence and polarization. Confirm AOI before comparing cut-on or reflection bands.
Dichroic Mirrors for Fluorescence and Beam Splitting
Compare dichroic mirrors by transition wavelength, reflection band, transmission band, AOI, and substrate size. These components are used to separate or combine channels in fluorescence and laser systems.
12+ Years Experience
|
ISO 9001 Certified
|
Shipped to 60+ Countries
|
99.8% Quality Rate
How to Choose
Confirm the angle of incidence first, usually 45 degrees for many beamsplitter layouts. Then match the reflection and transmission bands to excitation and emission paths, and check polarization, substrate thickness, and coating side orientation.
11
Dichroic Mirrors
These dichroic mirrors (beamsplitters) are designed for a 45° angle of incidence and separate light by wavelength. They are suited to fluorescence microscopy, laser beam combining, multi-channel imaging, and projector applications. Longpass-type dichroics transmit longer wavelengths and reflect shorter ones.
View full Dichroic Mirror Category
Showing 0 of 0
| Model | AOI | Transmittance | Transmission Range (nm) | Reflectivity | Reflection Range (nm) |
|---|---|---|---|---|---|
| DM450 | 45 | Tave≥95% | 465-680 | R≥98% | 380-445 |
| DM505 | 45 | Tave≥95% | 515-700 | R≥98% | 450-490 |
| DM550 | 45 | Tave≥95% | 560-700 | R≥98% | 450-540 |
| DM565 | 45 | Tave≥95% | 575-700 | R≥98% | 450-555 |
| DM590 | 45 | Tave≥95% | 603-700 | R≥98% | 450-580 |
| DM600 | 45 | Tave≥95% | 622-700 | R≥98% | 450-590 |
| DM635 | 45 | Tave≥95% | 650-700 | R≥98% | 450-630 |
| DM647 | 45 | Tave≥95% | 665-700 | R≥98% | 450-640 |
| DM700 | 45 | Tave≥95% | 715-800 | R≥98% | 450-685 |
| DM770 | 45 | Tave≥95% | 780-900 | R≥98% | 600-755 |
| Reflect visible spectrum IR transmitting | 45 | Tave≥95% | 850-1100 | R≥98% | 400-780 |
| DM500(SP) | 45 | Tave≥95% | 440-485 | R≥98% | 515-700 |
| DM550(SP) | 45 | Tave≥95% | 480-530 | R≥98% | 565-700 |
| DM565(SP) | 45 | Tave≥95% | 480-550 | R≥98% | 580-700 |
| DM600(SP) | 45 | Tave≥95% | 480-580 | R≥98% | 620-700 |
| DM650(SP) | 45 | Tave≥95% | 480-635 | R≥98% | 670-800 |
| DM690(SP) | 45 | Tave≥95% | 480-675 | R≥98% | 710-800 |
Related Engineering Notes
Reflection and transmission bands
A useful dichroic choice must satisfy both sides of the split: high reflection for one band and high transmission for the other.
Use in fluorescence systems
For fluorescence, match the dichroic edge to excitation and emission filters as a set, not as an isolated mirror.
FAQ
What does a dichroic mirror do?
It reflects one wavelength range and transmits another, allowing optical systems to split or combine channels by wavelength.
Why is angle of incidence important?
The transition edge shifts with angle and polarization, so the specified AOI must match the instrument design.
Can dichroic mirrors be customized?
Yes. Custom transition wavelengths, reflection/transmission bands, substrate sizes, and AOI targets can be specified.
Quality & Compliance
Documentation-ready optical filter supply
For OEM programs, laboratory instruments, and industrial systems, OPTOStokes keeps quality, material compliance, and engineering support visible from the start of supplier evaluation.
Quality system
ISO 9001 managed production
Process control, inspection records, and repeatable coating workflows for production optical components.
Material compliance
RoHS / REACH support
Compliance documentation can be prepared for qualified projects and regulated supply chains.
Factory-direct
Custom coating and dimensions
Wavelength, FWHM, substrate, AOI, size, and mounting requirements can be reviewed with engineering.
Procurement ready
Quote and data review
Share target wavelength, blocking level, transmittance, and drawing requirements for a focused quote.
Ready to Find Your Filter?
Our engineers will help you select the perfect optical solution.