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Glite Dictionary
drawtube

drawtube

1 8.1
A sliding tube in a microscope or telescope that moves to change focus
  • noun
  • /ˈdrɔːˌtjuːb/
  • Specialized
: tubo de enfoque
  • Carefully sliding the drawtube helps adjust the focus for different specimens.
  • focuser drawtube
  • Newtonian drawtube

Examples

  • Older telescopes often used a drawtube to change the length of the instrument.

  • The drawtube of the microscope can be extended to achieve a sharper image.

  • The drawtube on my microscope is stuck.

  • Can you adjust the drawtube for better focus?

  • The drawtube of the microscope allows users to adjust the focus and examine details more clearly.

  • With the drawtube extended, the astronomer was able to enhance the view of the distant stars.

  • To achieve better clarity, make sure the drawtube is securely locked in place during your observations.

Synonyms

focuser
vsdrawtube
  • Specialized
1 5.5

A person or tool that adjusts a lens to make an image clear

is a specific sliding tube used to change length or focus

Surface Forms

drawtube singular
drawtubes plural

Morphology

drawtube = draw + tube (transparent) = draw + tube

Meaning is directly derived from 'draw' (to pull/extend) + 'tube' (a cylindrical component): a tube that is drawn or slides out to adjust length/focus.

Etymology

Drawtube comes from two simple parts: draw meaning 'to pull or slide out' and tube meaning 'a round hollow tube'. So a drawtube is literally a tube you pull out or slide in to change the length of a microscope or telescope, which is why it is used to adjust the focus.