Dichroic Color Filters For Landscape Lighting

Dichroic color filters, also known as interference filters or dichroic filters, are optical filters that selectively reflect light in a particular wavelength range while transmitting other wavelengths. They utilize the wavelength-selective interference effects caused by multiple layers of dielectric materials to filter light by color. Dichroic color filters, also known as interference filters or dichroic filters, are optical filters that selectively reflect light in a particular wavelength range while transmitting other wavelengths. They utilize the wavelength-selective interference effects caused by multiple layers of dielectric materials to filter light by color.

 

Our dichroic filters empower superior color control through precision multi-layer optical coatings. Leveraging interference effects, these filters reflect, transmit, and separate light at exact wavelengths for demanding color tasks. We offer an extensive catalog, including bandpass filters for isolating color bands, longpass and shortpass filters for color separation, notch filters for narrow wavelength rejection, laser line filters, and cold mirrors. With high efficiency, steep transition slopes, and durable coatings, our filters enable unmatched manipulation across the visible spectrum and beyond into the UV and IR ranges. Whether your needs are high-volume OEM orders or specialized custom dichroic filters, our expert team delivers transformative solutions to advance your optics applications through the power of dichroic.

 

Features

- Precision multi-layer optical coatings for superior color control

- Reflect and transmit specific wavelengths while passing others

- Available as bandpass, long pass, short pass, notch, laser line, and cold mirror filters

- Isolate, separate, or combine desired bands of color

- High transmission and reflection efficiencies within passbands

- Extremely steep transition between reflection and transmission

- Durable coatings resistant to scratching and high temperatures

- Customization filter spectra across visible, UV, and IR ranges

- Ideal for optics experiments, microscopy, photography, lighting, displays

- Leverage interference effects for exacting wavelength manipulation

 

Parameters

Product Name	Dichroic Color Filter
Substrate Material	Optical glass, fused silica
Substrate Thickness	1mm standard, 0.5-5mm available
Coating Material	SiO2, TiO2, Ta2O5, AI2O3, MgF2
Wavelength Range	340-2300nm
Bandwidth FWHM	2-300nm
Transmission Efficiency	Up to 93% in passband
Reflection Efficiency	Up to 99% in stopband
Transition Slope	<1nm shift between 10% and 90%
Surface Quality	60-40 scratch-dig
Environmental Stability	Stable from -40℃
Diameter Range	6-50mm standard, custom sizes available
Laser Damage Threshold	Up to 10 J/cm2 CW, 1GW/cm2 pulsed

 

Spectrum Transmission Curve

 

Applications

The critical benefit dichroic filters offer is advanced spectral control over visible and non-visible wavelengths for optics experiments, imaging, color manipulation, and measurement. Here are some of the main applications and uses for dichroic color filters:

- Fluorescence microscopy - Bandpass filters to isolate specific fluorescent dye wavelengths.

- Spectroscopy - Transmission filters for selecting certain spectral lines.

- Photography/lighting - Creative filters for color effects and control.

- LCDs - Combining red, green, and blue light into full-color images.

- Laser applications - Line filters to purify or divide laser wavelengths.

- Machine vision - Filters paired with cameras and sensors for imaging and inspection.

- Stage/theater lighting - Filters used in moving lights and LED walls.

 

How does a dichroic color filter apply in landscape lighting?

Dichroic color filters offer lighting designers creative ways to incorporate color effects into outdoor lighting features. These multi-layered interference filters can selectively transmit specific wavelengths of light while reflecting others, making them invaluable for combining, separating, and filtering light. Miniature dichroic filters placed over RGB LEDs enable spotlighting effects to paint vibrant colors across gardens, pathways, and architectural details. Subtle dichroic filters can also shift the ambient light from path lights and build luminaires into pleasant color tones, setting a unique mood.

 

Underwater pool and fountain lighting present perfect opportunities to implement dichroic filters, as their dielectric coatings are waterproof and maintain optical properties when submerged. Specific dichroic filters can tailor the transmission spectrum for plant growth lighting to provide the ideal wavelengths for photosynthesis and health. Whether used for vivid color mixing in spotlights or subtle filtering in path lighting, dichroic color filters give landscape designers limitless options for unique, dynamic, and creative exterior lighting effects after dusk. Their ability to selectively filter portions of the visible spectrum allows unparalleled control over the color, results, and ambiance of any illuminated landscape.

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