aktiivoptika

Terminological databases

ID 576082 Last modified 06.01.2025

Domain optical instrumentsopticsastronomy

aktiivoptika

active optics

tehnoloogia, mis jälgib ja muudab vaatluste ajal teleskoobi peegli kuju, et vähendada välistest teguritest (temperatuur, teleskoobi asend, mehaanilised pinged jne.) tingitud moonutusi

technology used with reflecting telescopes, which actively shapes a telescope's mirrors to prevent deformation due to external influences such as wind, temperature, mechanical stress
Good to know
- Not to be confused with adaptive optics [ IATE:1900313 ], which operates at a shorter timescale and corrects atmospheric distortions.

aktiivoptika

Usage examples

Aktiivoptika, maapealsete teleskoopide ehitamisel kasutatav tehnoloogia, mis võimaldab parandada teleskoopide nurklahutust.

active optics

Usage examples

However, as plans were developed in the 80s to enhance light-collecting power by building telescopes with primary mirrors well above 4 m in diameter, it became clear that conventional methods of maintaining image quality were ruled out by cost and structure weight limitations. As a result,the new technique of Active Optics has been developed for medium or large telescopes, with Image quality optimised automatically by means of constant adjustments by in-built corrective optical elements operating at fairly low temporal frequency ~ 0.05 Hz or less.

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