For IRIS we have terms and definitions in 20 topics. The topics are Avian, CCTV, Camcorder, Canine, Cinematography, Concert Lighting, Digital Imaging, Environment, Environmental Acronyms, Eye Health, Film, Film Production, Glaucoma, Health, Human Body, Hunting, Lasik, Medical, Satellite Meteorology Acronyms and Video.

IRIS (Avian)

Colored part of eye.

IRIS (CCTV)

A mechanical diaphragm which can be controlled manually or automatically to adjust the lens aperture.

IRIS (Camcorder)

Adjustable lens opening that the allows light to pass through, also called lens diaphragm.

IRIS (Canine)

The colored membrane surrounding the pupil of the eye.

IRIS (Cinematography)

A variable aperture that controls exposure or the amount of light which is released from a lighting unit. (Camera/Lighting)

IRIS (Concert Lighting)

A device commonly used in an ERS or followspot to reduce the apparent diameter of the beam of light. Many automated fixtures also employ a motor controlled iris which can be used to remotely adjust the beam diameter.
See Also: Automated Fixture Ellipsoidal Reflector SpotlightFollowspot

IRIS (Digital Imaging)

Inkjet continuous-tone printer line owned by Scitex. It lays down variable-sized dots yielding high resolution and prints on any substrate.

IRIS (Environment)

EPA's Integrated Risk Information System, an electronic data base containing the Agency's latest descriptive and quantitative regulatory information on chemical constituents.

IRIS (Environmental Acronyms)

Instructional Resources Information System. Integrated Risk Information System

IRIS (Eye Health)

The colored part of the eye. The iris is partly responsible for regulating the amount of light permitted to enter the eye.

IRIS (Film)

Like the iris of the eye, a valve within a lens to control the amount of light that passes through. Opening the iris permits more light to pass through the lens and closing the iris less. The degree to which the iris is open or closed is measured in F-Stops, and on some lenses supplemented by T-Stops.

IRIS (Film Production)

A variable aperture that controls exposure or the amount of light which is released from a lighting unit. (Camera/Lighting)

IRIS (Glaucoma)

The colored part of the eye that can expand or contract to allow the right amount of light to enter the eye.

IRIS (Health)

Colored part of the eye that contains the muscles that adjust the size of the pupil to control the amount of light entering the eye

IRIS (Human Body)

the pigmented, muscular curtain at the front of the eye, perforated by an opening called the pupil. The muscles of the iris control the size of the pupil, determining how much light reaches the sensory tissue of the retina.

IRIS (Hunting)

Colored part of eye.Thin, contractile disc with a central opening (the pupil) in front of the lens in vertebrate eyes

IRIS (Lasik)

The colored part of the eye; the iris controls the amount of light that passes through the pupil.

IRIS (Medical)

The colored part of the eye

IRIS (Satellite Meteorology Acronyms)

Infrared Radiation Interferometer Spectrometer (1960s)

IRIS (Video)

Adjustable lens opening that regulates amount of light entering the camera.

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