Filter

Overview of typical filter sets
Tyfical filter set
The primary filtering element in fluorescence microscope is the set of three filters housed in a fluorescence filter cube (or filter block): the excitation filter, the emission filter, and the dichroic beamsplitter.
Band pass filters are designed to transmit a specific range of wavelengths and block light on either side of that range. These filters are denoted by their center wavelength and bandwidth. The center wavelength (CWL) is the arithmetic mean of the wavelengths at 50% of peak transmission. The full width at half maximum (FWHM) is the bandwidth at 50% of peak transmission.

 

 

One filter configuration is a set including a multiband exciter, multiband dichroic, and multiband emission filter. Each filter can be created to selectivly transmit and block multiple bands of wavelengths. This configuration requires the user to use a color CCD camera and simultaneously capture multiple fluorochromes present in a sample with a single image.

One filter configuration is a set including a multi band exciter, multi band dichroic, and multi band emission filter. Each filter can be created to selectively transmit and block multiple bands of wavelengths. This configuration requires the user to use a color CCD camera and simultaneously capture multiple fluorochromes present in a sample with a single image.

LP and SP filters are denoted by their cut-on or cut-off wavelengths at 50% of peak transmission. LP or SP filters that have a very sharp slope.
LP and SP filters are denoted by their cut-on or cut-off wavelengths at 50% of peak transmission. LP or SP filters that have a very sharp slope.

 

Schematic of a wide-field fluorescence microscope, showing the separate optical paths for illuminating the specimen and imaging the specimen
Schematic of a wide-field fluorescence microscope, showing the separate optical paths for illuminating the specimen and imaging the specimen
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Original Chroma Filter 
latest coating technologies, best color separation and signal purity all with competitive pricing and on-time deliveries.
[Information]

Features of filter JNOPTIC offers

  • 50% greater signal intensity than similar soft coated filters
  • Sputtered coatings : more durable, harder and longer lasting than soft coatings
  • Less costly than competitors
[Advantage by JNOPTIC]
  • Quick responses to your request
  • Reduce incovenience of contact to Chroma
  • Import agent service
  • Save shipping charge with Every 5th date
  • Just 7 days to delivery in case of stock
[Filter Accessories]

We can also supply filter accessories for any application, filter cube, slide, ring you want.

[Standard for selection of filter]

If you know below standard for selecting filters, we can recommend proper filters easily you’re looking for.

  • Microscope brand and model
  • Fluorochrome
  • Light source
  • Filter type : Single band, Longpass, Dual band, Triple band, Fish, etc.
  • Wavelength range of EX, EM, BS
  • Filter size, thickness