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latent image

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia, Hutchinson 0.02 sec.
latent image
An invisible image typically of electrical charges. For example, in a copy machine, a latent image of the page to be copied is created on a plate or drum as an electrical charge.
latent image [′lāt·ənt ′im·ij]
(graphic arts)
An invisible image produced by the physical or chemical effects of light on the individual crystals (usually silver halide) of photographic emulsions; the development process makes the image visible, in the negative.


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Regardless of material, some process must be employed to render the latent image captured by the camera into the final photographic work.
1) Computed radiography (CR) was the product name for the first commercial device for making radiographs using the process of photostimulable luminescence (PSL), whereby X-ray energy projected onto a doped crystalline material--the photostimulable phosphor (PSP)--produces a latent image of excited electrons in local potential energy traps.
He discovered that by exposing the silver first to iodine vapour, before exposure to light, and then to mercury fumes after the photograph was taken, a latent image could be formed and made visible.
 
 
 
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