NOUN
- diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
How To Use iris diaphragm In A Sentence
- It has an iris diaphragm, and an optical and LCD screen viewfinder.
- It has an adjustable iris diaphragm, with up to 10 mm clear aperture, mounted in a 30 mm diameter barrel.
- These iris diaphragms are made from tempered and blackened steel leaves mounted in a metal ring.
- Some of our iris diaphragms use a two-iris system to allow them to be closed completely to a zero aperture.
- This is the job of the iris diaphragm, a series of overlapping metal plates that can fold in on each other or expand out.
- Implicit in such microscopes are design elements such as solid metal alloys, high quality prisms rather than mirrors and iris diaphragms not disk type diaphragms, among others.
- The iris leaves of Melles Griot iris diaphragms, constructed of corrosion-resistant, blackened spring-steel, are mounted on a low-friction bearing pins.
- The condenser is equipped with an iris diaphragm , a shutter controlled by a lever which is used to regulate the amount of light entering the lens system.
- In experiments to find the effect of lens diameter he invented the familiar iris diaphragm.
- Focusing the condenser on a microscope without an iris diaphragm is carried out by removing the slide from the stage and placing a piece of thin card half-way across the light source aperture.