[new term] focal length
came up during #11 (closed)
This isssue is to define the term focal plane which is required for the definition of #85 (closed) dynamic focus correction
Term: Focal length
potential superclass
- length
- distance
potential differentia
- is the distance of the space between somethign and the focal point.
potential comments
- This definition is applicable to thin lenses. The focal length of the objective lens ranges 0.5 to 4 mm depending on the target of observation.
sources
synonyms
Term: Focal point
potential superclass
- point
- [point in space]
potential differentia
- is where parallel beams converge
- is along the beam axis
- is intentionally selected
potential comments
- This definition is applicable to thin lenses. The focal length of the objective lens ranges 0.5 to 4 mm depending on the target of observation.
sources
synonyms
Edited by Volker Hofmann