Question

в чем звключается принцип действия фотоэмульсии?

Answer 1

Под действием света поисходит химическая реакция в зернах фотоимульсии и её цвет изменяется

Answer 2

происходит химическая реакция в зернах фотоимульсии и её цвет изменяется в зависимости от направления

Answer 3

Principle of Operation of Photographic Emulsion

The principle of operation of photographic emulsion involves the interaction of light with a light-sensitive material called a photographic emulsion. A photographic emulsion is a suspension of light-sensitive silver halide crystals in a gelatin matrix. When exposed to light, these silver halide crystals undergo a chemical reaction that forms a latent image. This latent image can be developed and made visible through a series of chemical processes.

The process can be summarized as follows:

1. Exposure: When light falls on the photographic emulsion, it interacts with the silver halide crystals. The energy from the light causes the silver halide crystals to undergo a chemical change, resulting in the formation of a latent image.

2. Development: The latent image formed during exposure is made visible through the process of development. The photographic emulsion is treated with a developer solution, which converts the exposed silver halide crystals into metallic silver. This creates a visible image on the emulsion.

3. Fixing: After development, the emulsion still contains unexposed and undeveloped silver halide crystals. These crystals are removed through a process called fixing. The emulsion is treated with a fixing solution, which dissolves the unexposed silver halide crystals, leaving behind only the developed silver image.

4. Washing and Drying: The final step involves washing the emulsion to remove any residual chemicals and then drying it. This ensures the stability and longevity of the developed image.

It is important to note that the exact composition and process of photographic emulsion may vary depending on the specific type of film or photographic material being used.