Definition: rays that occur beyond the red end of the electro-magnetic spectrum and are invisible to the human eye. They can be recorded on specially sensitized films, producing images in black & white or color.
Definition: The region of the electromagnetic spectrum adjacent to the visible spectrum, just beyond red with longer wavelengths.
Definition: The band of invisible rays just beyond red, which people perceive to some extent as heat. Some photographic materials are sensitized to record infrared.
Definition: The region of the electromagnetic spectrum adjacent to the visible spectrum, just beyond red with longer wavelengths.
Definition: The band of invisible rays just beyond red, which people perceive to some extent as heat. Some photographic materials are sensitized to record infrared.
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