The iris opens and closes its aperture or "hole" to let in the correct amount of light.
Mechanical irises were used for a long, long time in pre-digital film camers.
The iris, which is the colored part of the eye, regulates the amount of light that goes into the eye by controlling the size of the pupil. The muscles in the iris can expand or contract the pupil in response to changes in light intensity.
The colored portion that regulates the amount of light in eye is called as iris. The hole through which light passes inside the posterior chamber is called as is called as pupil. The color of the iris changes as per color of the skin pigment. It has got circular muscles and radial muscles in it. In fight or flight responce, it is dilated through sympathetic nerve stimulation. In relaxed and stress free envirinment pupil is constricted via parasympathetic nerve stimulation.
lens, the concave disk held by the ciliary muscles, found behind the opening of the pupil, can't miss it!
The iris is the part of the eye that adjusts in response to light conditions. It controls the size of the pupil, which determines how much light enters the eye. In bright light, the iris contracts to make the pupil smaller, and in dim light, it dilates to make the pupil larger.
The condenser is the part of the microscope that is used to increase the amount of light passing through the specimen. It focuses light onto the specimen to improve image quality and enhance visibility. Adjusting the condenser can help optimize the lighting for different types of samples.
The iris, which is the colored part of the eye, regulates the amount of light that goes into the eye by controlling the size of the pupil. The muscles in the iris can expand or contract the pupil in response to changes in light intensity.
The condenser is the part of the microscope that controls the amount of light reaching the specimen. By adjusting the condenser's aperture and height, you can regulate the amount and focus of light used for illumination in the microscope.
The condenser on a microscope is the part that is adjusted to control the amount of light passing through the stage. By adjusting the condenser, you can increase or decrease the amount of light reaching the specimen on the stage.
The light diaphragm
The pupil absorbs light.
That is correct for the 2007 Chevy Tahoe LTZ
The most imortant part of the eye that changes the direction of light is the LENS, though the cornea does do a little of the inital focusing.
mitosis
The iris!
The diaphragm or iris controls the amount of light that passes through the specimen on a microscope. By adjusting the diaphragm, you can regulate the intensity and focus of the light.
The correct part # is 9098114009
No part of the Earth receives the same amount of light every day, but every point on Earth receives the same amount of light in a whole year.