Optical Dichroic Longpass Filter
- Thickness (mm): 1.05 ± 0.1
- Dimension Tolerance (mm): +0.0 / -0.2
- Coating: Hard Coated
- Surface Quality: 60-40
- Transmittance (%): ≥85
What is a Dichroic Longpass Filter?
A Dichroic Longpass Filter is an important optical component designed to reflect shorter wavelengths of light. And it transmitts longer wavelengths with excellent efficiency.
Unlike standard filters, dichroic filters use thin-film coatings to achieve sharp spectral separation, making them ideal for advanced optical applications.
And these filters are also referred to as dichroic beam splitters or longpass dichroic mirrors.
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High Transmission – Allows longer wavelengths to pass through with minimal signal loss.
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Sharp Cut-on Edge – Provides accurate wavelength separation between excitation and emission light.
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Durable Coatings – Thin-film dielectric coatings ensure long-term stability and resistance to laser damage.
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Low Autofluorescence – Optimized for sensitive fluorescence imaging and life science applications.
Applications of Dichroic Longpass Filters
Due to its unique characteristics, people often choose it in the dichroic long pass filters in scientific research, laser systems, and industrial optical devices.
Here are the common applications of it:
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Fluorescence Microscopy
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Flow Cytometry
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Spectroscopy
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Laser Systems
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Biotechnology & Medical Imaging
Chenyu Dichroic Longpass Filter maks it an ideal choice for fluorescence applications or as a spectral beam splitter lens.
We can provide complete reflection and transmission characteristic curves.
Chengyu employs the most advanced production technology and offers customized services.
We will produce high-quality dichroic long-pass filters for you. If you have any requirements, please contact us.


