What is an Edgepass filter?
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What is an Edgepass Filter?
An Edgepass Filter is a type of optical filter designed to either transmit or block wavelengths in a spectrum based on a specified cut-on or cut-off point. These filters are categorized into two main types: Longpass and Shortpass filters.
Types of Edgepass Filters
- Longpass Filters: Transmit wavelengths longer than the cut-on wavelength, blocking shorter wavelengths.
- Shortpass Filters: Transmit wavelengths shorter than the cut-off wavelength, blocking longer wavelengths.
Applications
Edgepass filters are used in various applications, including:
- Photography and imaging
- Spectroscopy
- Optical instrumentation
- Laser systems
Key Features
| Feature | Description |
|---|---|
| High Transmission | Efficiently transmits desired wavelengths. |
| Sharp Transition | Clear distinction between blocked and transmitted wavelengths. |
| Durable Coating | Resistant to physical and environmental damage. |
Edgepass filters are essential components in optical systems, providing precise control over the wavelengths that pass through, enhancing the performance and functionality of various devices.