UV photography uses equipment that can handle light in the ultraviolet part of the spectrum to create visible images through false color. Reflected ultraviolet and ultraviolet fluorescence techniques require specialized films or sensors and filters or lenses to block visible light. UV images are used in scientific research to identify markings on plants and animals and gather information about space objects. They can also be used to discover new planets and stars.
A UV image is an image taken with a film or sensor that is sensitive to light in the ultraviolet band of the electromagnetic spectrum. It is important to note that although the result of ultraviolet photography is a visible image, ultraviolet light is not visible to the human eye and the visible image is actually created through the use of false color which assigns color values depending on the intensity of exposure to ultraviolet light. UV images can be used in a variety of settings and are particularly popular in scientific research.
Two techniques can be used to obtain a UV image: reflected ultraviolet photography and ultraviolet fluorescence photography. Both require equipment that can handle light in the ultraviolet part of the spectrum. This includes specialized films for film cameras and UV-sensitive sensors in digital cameras. You must also use filters with your camera lens or use a lens specifically developed for use in UV photography.
To take a UV image, the photographer uses a filter or lens that blocks visible light, allowing only UV light to enter the camera. When the image is taken, the film or sensor is exposed to UV light, creating a UV image. Sometimes a filter is used that allows blue and purple light into the camera, creating a rather eerie look in the finished image.
In the sciences, UV images of space, planets, and other objects of interest in the universe are taken to gather more information about them. These images are taken from space because the Earth’s atmosphere interferes with ultraviolet light and can obscure our “vision” in the ultraviolet spectrum. Patterns that previously couldn’t be identified can become visible when people look at just the UV area of the spectrum, and this imaging technique can also be used to do things like discover new planets and stars. In this case, the image might be color-processed before it’s released to the public, but people should be aware that the colors they’re seeing are artificial.
Scientists can also use a UV image to identify special markings on plants and animals. Flowers in particular are known to have markings that are only visible to animals that can perceive ultraviolet light. Bees, for example, see the world differently than humans and can identify tiny airstrips and other markers on flowers that humans can’t see. A UV image can be used to get an idea of how bees might see a particular flower, which can provide interesting insights into the lives of bees.
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