Assertion: lens's distance | /r/HasProperty | measured to the position of the lens
Facets:
value: from the object
type: OTHER
value: for a thin lens
type: PURPOSE
value: from image
type: OTHER
Source sentences:
text: For a thin lens, the distances S 1 and S 2 are measured from the object and image to the position of the lens, as described above.
text: For a thin lens, the distances S 1 and S 2 are measured from the object and image to the position of the lens, as described above.