Collimating eyepiece

Definition of Collimating eyepiece

an eyepiece with a diagonal reflector for illumination, used to determine the error of collimation in a transit instrument by observing the image of a cross wire reflected from mercury, and comparing its position in the field with that of the same wire seen directly.
See under Collimate.

See also: Collimate eyepiece

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Collegiate church
Collembola
Collenchyma
Collet
Colleterial
Colleterium
Colletic
Colley
Collide
collider
Collidine
colliding-beam machine
Collie
Collied
Collier
Colliery
Colliflower
Colligate
Colligation
Collimate
-Collimating eyepiece-
Collimating lens
Collimation
Collimator
Collin
Colline
Collineation
Colling
Collingly
Collingual
Colliquable
Colliquament
Colliquate
Colliquation
Colliquative
Colliquefaction
Collish
Collision
Collisive
Collitigant
Collocate
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