Latent image
A latent image is an invisible image produced by the exposure to light of a photosensitive material such as photographic film. When photographic film is developed, the area that was exposed darkens and forms a visible image. In the early days of photography, the nature of the invisible change in the silver halide crystals of the film's emulsion coating was unknown, so the image was said to be "latent" until the film was treated with photographic developer.
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- enA latent image is an invisible image produced by the exposure to light of a photosensitive material such as photographic film. When photographic film is developed, the area that was exposed darkens and forms a visible image. In the early days of photography, the nature of the invisible change in the silver halide crystals of the film's emulsion coating was unknown, so the image was said to be "latent" until the film was treated with photographic developer.
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- Has abstract
- enA latent image is an invisible image produced by the exposure to light of a photosensitive material such as photographic film. When photographic film is developed, the area that was exposed darkens and forms a visible image. In the early days of photography, the nature of the invisible change in the silver halide crystals of the film's emulsion coating was unknown, so the image was said to be "latent" until the film was treated with photographic developer. In more physical terms, a latent image is a small cluster of metallic silver atoms formed in or on a silver halide crystal due to reduction of interstitial silver ions by photoelectrons (a silver cluster). If intense exposure continues, such photolytic silver clusters grow to visible sizes. This is called printing out the image. On the other hand, the formation of a visible image by the action of photographic developer is called developing out the image. The size of a silver cluster in the latent image can be as small as a few silver atoms. However, in order to act as an effective latent image center, at least four silver atoms are necessary. On the other hand, a developed silver grain can have billions of silver atoms. Therefore, photographic developer acting on the latent image is a chemical amplifier with a gain factor up to several billion. The development system was the most important technology that increased the photographic sensitivity in the history of photography.
- Hypernym
- Image
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- Latent image
- Label
- enLatent image
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- Atom
- Category:Science of photography
- Electron
- File:Latent Image.png
- Film base
- Fog
- Fogging (photography)
- Light
- Nevill Francis Mott
- Nils Strindberg
- Photoelectron
- Photographic developer
- Photographic emulsion
- Photographic film
- Photographic processing
- Photolytic
- Photon
- Redox
- Ronald Wilfred Gurney
- S. A. Andrée's Arctic Balloon Expedition of 1897
- Silver
- Silver chloride
- Silver halide
- SameAs
- 3H86f
- Image latente
- Imatge latent
- Íomhá folaigh
- Latentní obraz
- m.0505vq
- Obraz utajony
- Q355645
- Скрытое изображение
- صورة كامنة
- 潜像
- 잠상
- Subject
- Category:Science of photography
- Thumbnail
- WasDerivedFrom
- Latent image?oldid=1080887946&ns=0
- WikiPageLength
- 13726
- Wikipage page ID
- 1421532
- Wikipage revision ID
- 1080887946
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- Template:Citations needed
- Template:Other uses
- Template:Short description
