Framed Prints
Framed Print of Joseph von Fraunhofer, Spectroscope, 1814
Fraunhofer demonstrating his invention, the spectroscope. Joseph Ritter von Fraunhofer (March 6, 1787 - June 7, 1826) was a German physicist. One of the most difficult operations of practical optics was to polish the spherical surfaces of large object glasses accurately. Fraunhofer invented a machine which rendered the surface more accurately than traditional grinding. in 1814, he invented the spectroscope. In the course of his experiments he discovered the bright fixed line which appears in the orange color of the spectrum when it is produced by the light of fire. This line enabled him afterward to determine the absolute power of refraction in different substances. Experiments to ascertain whether the solar spectrum contained the same bright line in the orange as that produced by the light of fire led him to the discovery of 574 dark fixed lines in the solar spectrum. These lines are called Fraunhofer lines in his honor. Like many glassmakers of his era who were poisoned by heavy metal vapors, Fraunhofer died young, in 1826 at the age of 39. His most valuable glassmaking recipes are thought to have gone to the grave with him. Photogravure from a painting by Richard Wimmer. © Omikron / Science Source
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Media ID 47339509
1814 Diffraction Equipment Fraunhofer German Germany Glass Grinding Instrument Instruments Invention Inventions Inventor Inventors Joseph Line Lines Machine Machinery Machines Optical Pattern Patterned Patterning Patterns Ritter
Modern Frame 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 24.4cm x 19cm (9.6" x 7.5")
Estimated Product Size is 36cm x 31cm (14.2" x 12.2")
