Fresnel Lens Lab Report
Name
Instructor
Course
Date of Submission
Fresnel Lens
Discovery
The Fresnel lens was discovered in 1819 by a French physicist named Augustin-Jean Fresnel. He served as a commissioner of light houses under the French Government (Levitt and Theresa 1). First, Fresnel developed a lighting system that consisted of reflector panels placed behind oil-lamps. However, this proved to be inefficient since it converted just about 3% of the total light emitted into useful light, which was insignificant (Levitt and Theresa 4). Notwithstanding, he realized that the strength of the light could be increased by increasing the height of the flame. In an attempt to address this problem, Fresnel conducted several trial experiments that involved refraction of light on horizontal planes using thin lenses. After several attempts, he managed to develop a multipart lens for Lighthouses in 1822. The lens had light refraction and reflection ability. In addition, Fresnel managed to capture 80% of light from the source, making his discovery highly efficient (Levitt and Theresa 5). Moreover, the lens was visible at a distance and was easy to …show more content…
The first design was developed in 1821, where Augustin Fresnel applied the scientific knowledge of optics to develop the Fresnel lens that was tailored for lighthouse illumination. He designed it to have a bull’s-eye lens panel with different segments of rings. A single-square lens panel fabricated with 97 pieces of glass was laced up into the bulls-eye configuration to provide a short focal length of about 70cm (Levitt and Theresa 7). The flint glass was highly preferred because of its high refractive index and improved optical clarity. The multiple lens panel was developed by assembling polygonal segments of glass with glue and then organizing them in a circular
Instructor
Course
Date of Submission
Fresnel Lens
Discovery
The Fresnel lens was discovered in 1819 by a French physicist named Augustin-Jean Fresnel. He served as a commissioner of light houses under the French Government (Levitt and Theresa 1). First, Fresnel developed a lighting system that consisted of reflector panels placed behind oil-lamps. However, this proved to be inefficient since it converted just about 3% of the total light emitted into useful light, which was insignificant (Levitt and Theresa 4). Notwithstanding, he realized that the strength of the light could be increased by increasing the height of the flame. In an attempt to address this problem, Fresnel conducted several trial experiments that involved refraction of light on horizontal planes using thin lenses. After several attempts, he managed to develop a multipart lens for Lighthouses in 1822. The lens had light refraction and reflection ability. In addition, Fresnel managed to capture 80% of light from the source, making his discovery highly efficient (Levitt and Theresa 5). Moreover, the lens was visible at a distance and was easy to …show more content…
The first design was developed in 1821, where Augustin Fresnel applied the scientific knowledge of optics to develop the Fresnel lens that was tailored for lighthouse illumination. He designed it to have a bull’s-eye lens panel with different segments of rings. A single-square lens panel fabricated with 97 pieces of glass was laced up into the bulls-eye configuration to provide a short focal length of about 70cm (Levitt and Theresa 7). The flint glass was highly preferred because of its high refractive index and improved optical clarity. The multiple lens panel was developed by assembling polygonal segments of glass with glue and then organizing them in a circular