The Instrument - the SOHO home page
The Instrument - the SOHO home page
The Instrument - the SOHO home page
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Construction of a typical filter<br />
Construction of a typical filter<br />
• Glass plates: no role. Mechanical support for <strong>the</strong> filter.<br />
• Surface of one plate coated with:<br />
- a thin evaporated film of high reflectivity,<br />
- a thin layer of a transparent dielectric, and<br />
- ano<strong>the</strong>r metal film.<br />
•<strong>The</strong> o<strong>the</strong>r plate is added for protection.