Assertion: newtonian telescope's mirror | /r/HasProperty | aligned
Facets:
value: perfectly
type: DEGREE
value: as in all-reflecting system
type: OTHER
value: during manufacturing process
type: TEMPORAL
Source sentences:
text: To eliminate the problem of image shifting during focusing and also to eliminate optical alignment tasks (often called collimation) for the user, the primary mirror can be perfectly aligned during manufacturing process and then fixed securely within its cell.
text: The mirror may also need to be aligned or “collimated” sometimes.
text: This assumes the mirrors are perfectly aligned, which requires a center dot on the primary mirror plus some basic collimation tools.
text: The two mirrors and the focuser have to be aligned as in all-reflecting system, but all three also need to be aligned with the corrector.