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Aug 26, 2019 · Examples of Raking Light. Below are some examples of raking light, starting with a 17th century still life titled Quince, Cabbage, Melon and Cucumber by Juan Sánchez Cotán. Raking light illuminates the fruit from the left-hand side and leaves the other side in shadow.
Raking light, the illumination of objects from a light source at an oblique angle or almost parallel to the surface, provides information on the surface topography and relief of the artefact thus lit. It is widely used in the examination of works of art.
Natural Sources of Light Energy. One of the most common natural sources of light energy is the sun’s light. The sun produces a large amount of electromagnetic radiation, which includes ultraviolet rays (UV rays), infrared radiation, and visible light.
Raking or tangential light photography is an imaging technique that uses oblique angle lighting. In the case of raking light imaging, the object is lit by a light source positioned at a very shallow angle relative to the object’s surface (usually 5°-10°).
Raking light photography is a useful method for the examination of works of art and archaeology. It is part of the Technical Photography documentation and allows to detect and document surface features.
Jan 31, 2019 · One of the many examination techniques used when planning a paintings conservation treatment is raking light, where a light placed at one side of the painting and the light “rakes” across the surface. It can reveal details that are not readily visible in normal lighting.
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Raking Light. Simply placing a light at an oblique angle to a painting can reveal information clearly. Raking light is often used to document craqeulure, cupping or tenting paint, uneven tension in a canvas, or warp in a painting on a panel support.
