CHEMA Filter Product Classification

AmericaCHROMAThe company was founded in Vermont, USA in 1991, specializing in high-precision optical coating and dedicated to producing filters with precise spectral control, high signal-to-noise ratio, and steep slopes. The product range is very wide, including various filters for ultraviolet, visible, and near-infrared（200-3500nm）Among them, there are bandpass, multi band bandpass, long pass, short pass, spectroscope, and laser specific reflective filters. Since its establishment, the company has been closely collaborating with molecular biologists worldwide, striving to provide the best solutions in the field of fluorescence applications. Coloma Technologies is the primary supplier to four major microscope manufacturers (Nikon, Zeiss, Leica, and Olympus) in the United States. In addition to fluorescence microscopy companies, Coloma Technologies is also a supplier to many other manufacturers of biological instruments, biomedical instruments, drug research, astronomical and laser instruments. This includes fluorescence quantitative PCR based on fluorescence applications，Manufacturers of DNA sequencers, chip scanners, flow cytometers, multi-color FISH, etc.

Conventional fluorescent application filter

ChromaAT series filterAdopting magnetron sputtering coating, it has the characteristics of high transmittance, steep slope, high barrier, but low price. Including two types: bandpass and long pass. If higher transmittance and steepness are required, as well as applications involving the overlay of multiple color fluorescent images, please refer to Chroma ET high-end series filters. The Chroma ET series emitter has the characteristic of zero pixel shift during imaging.

For more information on Chroma AT series filters, please click on the following website:

https://www.chroma.com/products/single-band-longpass-shortpass-filter-sets/application/fluorescence/brand/at/type/sets_display

ChromaET series filterAdopting magnetron sputtering coating, it has the characteristics of high transmittance, steep slope, high blocking, and zero offset, and is suitable for various conventional fluorescence applications. Including single band, dual band, triple band, and quadruple band.

Chroma single band ET series filterFor details, please click on the following website：

https://www.chroma.com/products/single-band-longpass-shortpass-filter-sets/application/fluorescence/brand/et/type/sets_display

ChromamanyBand ET series filterFor details, please click on the following website：

https://www.chroma.com/products/multi-band-filter-sets

Conventional laser specific filter

The Z-series laser specific filters include single band, dual band, three band, and four band filters.

Chroma single bandZ-seriesFor details on laser specific filters, please click on the following website:

https://www.chroma.com/products/single-band-longpass-shortpass-filter-sets/lightsource/laser-and-laser-diodes/type/sets_display

Chroma multi bandZ-seriesFor details on laser specific filters, please click on the following website:

https://www.chroma.com/products/multi-band-filter-sets/lightsource/laser-and-laser-diodes

TIRF dedicated filter

Chroma's UltraFlat dichroic mirror (thickness ≥ 2mm) can minimize wavefront distortion caused by laser reflection.

Combined with Chroma's patented TIRF filter block box, it can ensure the generation of an ideal evanescent field without exciting fluorescent molecules outside the evanescent field. The products include single band, dual band, triple band, and quad band.

For more information on Chroma single band TIRF dedicated filters, please click on the following website:

https://www.chroma.com/products/single-band-longpass-shortpass-filter-sets/application/tirf/type/sets_display

For more information on Chroma multi band TIRF dedicated filters, please click on the following website:

https://www.chroma.com/products/multi-band-filter-sets/application/tirf

Raman specific filter

Chroma Raman specific filters have the following characteristics:

1. Narrowband excitation film

2. A dichroic mirror with a steeper slope

3. Long pass emission filter with steeper slope

4. Low wavenumber Raman signal detection (110-170 cm-1)

5. Suitable for UV, 488 nm, 532 nm, 785 nm and other lasers

In addition, Chroma currently has multiple sets of pre designed Raman filters (ultraviolet to near-infrared).

For more information on Chroma Raman specific filters, please click on the following website:

https://www.chroma.com/products/single-band-longpass-shortpass-filter-sets/application/raman/type/sets_display

FISH specific filter

Chroma FISH dedicated filters are ET series filters that are optimized based on the spectra of commonly used FISH dyes, achieving high-quality brightness, contrast, color discrimination, and image registration.

For details on single band FISH filters, please click on the following website:

https://www.chroma.com/products/single-band-longpass-shortpass-filter-sets/application/fish/type/sets_display

For details on multi band FISH filters, please click on the following website:

https://www.chroma.com/products/multi-band-filter-sets/application/fish

UV filter

Chroma UV filter adopts magnetron sputtering coating, which has excellent transmittance and durability.

For details on magnetron sputtering UV filters, please click on the following website:

https://www.chroma.com/products/single-bandpass-and-single-edge-filters/filter-type/single-bandpass-filters/wavelength-range/%5B214%20TO%20403%5D?page=1

Machine vision specific filter

Chroma has a series of machine vision specific filters for different LEDs and laser diodes as light sources, with the following characteristics:

Magnetron sputtering coating

High transmittance (≥ 95%)

High blocking (regular OD4, can achieve OD8 according to demand)

Applicable cone angle range (</=50 degrees)

steep slope

Dimensions (2-200 mm; circular, square, and irregular sizes)

Spectral range (200-3500 nm)

Accept customer customization

For details on machine vision specific filters, please click on the following website:

https://www.chroma.com/products/single-bandpass-and-single-edge-filters/application/machine-vision

Fluorescent block box

Chroma provides various commonly used cubes, sliders, and rings for microscopes.

Please click on the following website for Nikon microscope box blocks:

https://www.chroma.com/products/cubes-sliders-and-rings/manufacturer/nikon

Please click on the following website for Olympus microscope box blocks:

https://www.chroma.com/products/cubes-sliders-and-rings/manufacturer/olympus

Please click on the following website for Zeiss microscope box blocks:

https://www.chroma.com/products/cubes-sliders-and-rings/manufacturer/zeiss

Please click on the following website for Leica microscope box blocks:

https://www.chroma.com/products/cubes-sliders-and-rings/manufacturer/leica