Custom 45° Reflective Dichroic Color Filters
- Parallelism (arcmin): <1
- Dimensional Tolerance (mm): ±0.25
- Surface Quality: 60-40
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Transmission (%): 90.00
Dichroic Color Filters
Dichroic Color Filters are high-performance optical filters designed to selectively reflect or transmit specific wavelength ranges.
They use thin-film interference coatings to achieve sharp cut-on and cut-off transitions, ensuring high transmission of desired wavelengths and strong reflection of others.
They are suitable at 45° angle of incidence and will reflect the stated color while transmitting the remaining visible wavelengths.
Chenyu manufactures high-quality dichroic filters in longpass, shortpass, bandpass, and color correction types.
Advantages of Filters:
- The filters can control over reflected and transmitted wavelength bands.
- Hard dielectric coatings provide long-term stability and scratch resistance.
- Typically >90% transmission in the passband and >95% reflection in the blocked band.
- Optimized for 45° incidence, widely used in beam-splitting and color-separation applications.
- Available in various sizes, substrate materials and custom spectral ranges.
Applications of Dichroic Color Filters:
- Fluorescence Microscopy
- Imaging Systems
- Laser Systems
- Medical and Life Sciences
- Stage Lighting & Displays
Our experienced design team provides customers with support for optical system design, covering the entire process from initial design to prototype development and production.
If you need it, please contact us.
Also, Chenyu has other types of filters and we support customization.
| Cut-off Wavelength (nm) | Reflection Band (nm) | Transmission Range (nm) | Size (mm) |
|---|---|---|---|
| 411 | 344–404 | 415–570 | 25.2 × 35.6 × 1.1 |
| 458 | 426–450 | 467–600 | 25.2 × 35.6 × 1.1 |
| 497 | 442–488 | 502–730 | 25.2 × 35.6 × 1.1 |
| 508 | 446–500 | 513–725 | 25.2 × 35.6 × 1.1 |
| 520 | 488–512 | 528–655 | 25.2 × 35.6 × 1.1 |
| 555 | 493–548 | 562–745 | 25.2 × 35.6 × 1.1 |
| 565 | 499–555 | 569–730 | 25.2 × 35.6 × 1.1 |
| 595 | 530–585 | 601–800 | 25.2 × 35.6 × 1.1 |
| 655 | 470–645 | 665–726 | 25.2 × 35.6 × 1.1 |
| 660 | 594–651 | 669–726 | 25.2 × 35.6 × 1.1 |
| 665 | 350–650 | 680–1100 | 25.2 × 35.6 × 1.1 |
| 669 | 350–660 | 677–800 | 25.2 × 35.6 × 1.1 |
| 735 | 350–720 | 750–1100 | 25.2 × 35.6 × 1.1 |
| 740 | 480–720 | 750–825 | 25.2 × 35.6 × 1.1 |
