| 释义 |
image intensifier
image intensifier or image tuben (Electronics) any of various devices for amplifying the intensity of an optical image, sometimes used in conjunction with an image converterimage intensifier
image intensifier See image tube.image intensifier[′im·ij in′ten·sə‚fī·ər] (electronics) light amplifier image intensifier
image [im´ahj] 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 control" >automatic brightness control, gain" >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 image" >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 tomography" >linear tomography.im·age am·pli·fi·era 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 intensifierimage 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.AcronymsSeeIIThesaurusSeeimage |