500nm Shortpass Filter For Astronomy

A 500nm shortpass filter is an optical filter that allows shorter wavelengths of light to pass through while blocking or reflecting longer wavelengths of light. These filters are commonly used in applications where it is necessary to separate different regions of the spectrum, such as fluorescence microscopy, spectrophotometry, and colorimetry.

 

Our filter is made with advanced technology and precise manufacturing processes to ensure excellent performance and durability. It can be used in various applications and offers a sharp cut-on wavelength and a steep slope, ensuring accurate and reliable filtering of light. If you require precise control over the wavelengths of light in their experiments and observations, our SP500nm filter would be a wise choice for you.

 

Features

- Short pass for 500nm

- High attenuation

- Low insertion loss

- Flat frequency response

- Low noise

- Good impedance matching

 

Parameters

Product Name	500nm short pass filter
Central Wavelength (CWL)	500nm
Diameter	φ25mm or custom
Thickness	1mm or custom
Transmission Rate	>90% of the common
Blocking Depth	OD6 or custom
Blocking Range	500-1200nm
Coating	Hard coating
Tolerance	±0.01-0.1mm
Substrates	B270 or custom

 

Spectrum transmission curve

 

Applications

The 500nm short pass optical filter is widely used in many applications where it is necessary to separate or filter out light with longer wavelengths. Some common applications include:

- Fluoescence microscopy

- Spectrophotometry

- Colorimetry

- Astronomy

 

How to pick a good SP500nm filter?

When selecting a short pass filter, there are several important factors to consider to ensure that you choose a filter that is well-suited for your specific application:

 

Cut-off wavelength: The cut-off wavelength is the point at which the filter begins to block or attenuate longer wavelengths of light. Ensure that the cut-off wavelength of the filter you choose is appropriate for the specific wavelengths you want to transmit or block in your application.

 

Transmission: The transmission of the filter refers to the amount of light that is transmitted through the filter in the passband region. Ensure that the transmission of the filter is high enough for your application to ensure a strong signal-to-noise ratio.

 

Optical density: The optical density of the filter is a measure of the attenuation of the filter in the stopband region. A higher optical density means that the filter will more effectively block or attenuate unwanted wavelengths. Ensure that the optical density of the filter is high enough for your specific application.

 

Size and shape: Consider the size and shape of the filter, as well as the mounting options available, to ensure that it can be easily integrated into your system.

 

Durability: Choose a 500nm shortpass filter made from high-quality materials and coated with specialized thin-film coatings to ensure that it is durable and can withstand the environmental conditions of your application.

 

Compatibility: Ensure that the filter is compatible with the other components in your system, such as the light source and detector.

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