A more advanced 100 square foot colored concrete patio installation costs homeowners between $713 and $933 on average, which includes $188 to $204 worth of materials and $525 to $728 worth of labor costs.
The Diaphragm or diaphragm control lever regulates the amount of light passing through the slide specimen on the microscope stage.
The iris is the colored part of the eye that controls the amount of light that enters into the eye. It is the most visible part of the eye. The iris lies in front of the crystalline lens and separates the anterior chamber form the posterior chamber. The iris in part of the uveal tract which includes the ciliary body that also lies behind the iris. The iris tissue makes up the pupil. The pupil is the hole in the iris in which light passes through to the back of the eye. The iris controls the pupil size. The pupil is actually located with its center a little below and slightly to the nasal side of the center of the cornea.