Assertion: newtonian telescope's mirror | /r/AtLocation | place
Facets:
value: securely
type: MANNER
value: without stress
type: OTHER
value: by thin vanes
type: OTHER
Source sentences:
text: Held in place by thin vanes called the “spider” assembly, this secondary mirror captured the refocused light path in a non-magnified way and was aimed at a porthole on the top side of the optical tube.
text: The diagonal mirror is held in place with a thin four-vane spider.
text: The diagonal mirror is held in place with a thin four-vane spider.
text: The main mirror must be held in place without stress that could bend it and change the optical figure, and cannot be rigidly held - it may shift slightly whenever you transport or shake the tube.
text: The primary mirror and meniscus lens are securely held in place by three radially positioned nylon-tip set screws, which prevent any possibility of slippage or shifting.
text: The diagonal mirror is held in place with a thin four-vane spider.