image intensifier

(redirected from Night vision device)
Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia.


a picture or concept with more or less likeness to an objective reality.
body image see body image.
digital image a depiction recorded electronically to allow viewing or transmission on a computer.
image distributor beam splitter.
disturbed body image a nursing diagnosis defined as confusion in the mental picture of one's personal self. See also body image.
fluoroscopic image a visual depiction on a fluoroscopy screen.
image intensifier a fluoroscope that is electronically enhanced to produce a brighter image; see also automatic brightness control, brightness gain, and vignetting.
latent image the invisible change in radiographic film that is caused by x-radiation or light and is made visible by development of the film.
magnification image direct radiographic enlargement requiring a fractional focus tube of 0.3 mm or less.
manifest image the change on an x-ray film that becomes visible when the latent image undergoes appropriate chemical processing.
mirror image
1. the image of light made visible by the reflecting surface of the cornea and lens when illuminated through the slit lamp.
2. an image with right and left relations reversed, as in the reflection of an object in a mirror.
motor image the organized cerebral model of the possible movements of the body.
phantom image an artifact seen in conventional linear tomography.

im·age am·pli·fi·er

a device for converting a low light level fluoroscopic image to one that can be seen by the eye in a lighted environment; usually consists of an electronic light amplifier chained to a television tube.
Synonym(s): image intensifier

image intensifier

an electronic device used to produce a fluoroscopic image with a low-radiation exposure. A beam of x-rays passing through the patient is converted into a pattern of electrons in a vacuum tube. The electrons are accelerated and concentrated onto a small fluorescent screen, where they present a bright image, which is generally displayed on a video monitor.

image intensifier

A device used in radiology by means of which weak X-ray images obtained by low dosage radiation may be converted into television images and improved in brightness and contrast by purely electronic means. This allows continuous X-ray sceening for various procedures, such as the insertion of arterial catheters, without exposing the patient to unacceptably large doses of radiation.
References in periodicals archive ?
I have one of these truly excellent night vision devices and Wilcox Industries Corporation installed one of their L3 G10 One Hole Mounting Systems on a Blackhawk MICH-type Level III ballistic helmet to accept the ITT AN/PVS-14.
After-action reports indicate the new night vision devices accounted for approximately 30% of all casualties suffered by the Japanese to small arms fire during the first week of this campaign.
With a combined value of over $100 million, these contracts - one from Switzerland ($26 million) and one from Australia ($80 million) - firmly established ITT Night Vision as the leading supplier of Gen III night vision devices worldwide.
Browse through the TOC of global night vision device market for an in-depth analysis of the industry trends and segments, with help of various tables and figures.
For home defense purposes, IR lasers and night vision devices allow us to positively identify a potential target without having to turn on any lights that give away our position.
PEO Soldier's sensors and lasers include helmet-mounted night vision devices that provide improved situational awareness in all conditions, thermal weapon sights that provide enhanced abilities to acquire targets in degraded visibility, and aiming lights and other devices that accurately locate targets.
8220;I have been marketing night vision products for over fourteen years and have seen about every consumer and military grade night vision device on the market.
MOUNTAIN VIEW, California, July 23, 2014 /PRNewswire/ -- Though the night vision device market continues to innovate, budget cuts are stifling research and development (R&D), and procurement of advanced image intensification (I2), infrared (IR)/thermal, and fused night vision technologies.
check] AN/PVS-14 monocular night vision device, NSN 5855-01-432-0524
NASDAQ:ATNY), a leading provider of high performance RF/microwave, power and security solutions for high-reliability applications, now offers a Night Vision Device (NVD) test set that helps military personnel determine the quality of function of standard Gen II and Gen III night vision devices.
The Optics 1 Clip-On Thermal Imager (COTI) is a miniaturized infrared thermal device that has the ability to convert almost any, ordinary night vision device (PVS-14/7/BNVD) into a FUSION type system that combines thermal imaging with the best aspects of normal image intensified (I2) night vision devices into one system.

Full browser ?