Iris Diaphragm Definition

Iris Diaphragm Sentence Examples

• The iris diaphragm can be regulated by the lever p; it can also be turned to one side round the pivot z, so that the condenser k can be removed or changed.

• The iris diaphragm i is pushed to the side by the rack and pinion t n.

• It is best if the image of the light is not larger than the object examined, and to effect this, an illuminating lens with an iris diaphragm is often placed between the source of light and the illuminator.

• This can be attained by drawing the iris diaphragm so far as to form the entrance pupil.

• The double diaphragm is then in such a position that the edge of the outer diaphragm coincides with the edge of the iris diaphragm.