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An illustration of some of the optical devices available for laboratory work in England in 1858. An optical instrument is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic properties.
In physics, optically stimulated luminescence (OSL) is a method for measuring doses from ionizing radiation.It is used in at least two applications: Luminescence dating of ancient materials: mainly geological sediments and sometimes fired pottery, bricks etc., although in the latter case thermoluminescence dating is used more often
Phase shift through a beam splitter with a dielectric coating. Beam splitters are sometimes used to recombine beams of light, as in a Mach–Zehnder interferometer.In this case there are two incoming beams, and potentially two outgoing beams.
a Relascope (Spiegelrelaskop) The relascope, invented by Walter Bitterlich, is a multi-use instrument for forest inventory.It is primarily used to find the height of a tree, the basal area of a tree, and the diameter of a tree anywhere along the bole.
The Schuster Laboratory, University of Manchester (a physics laboratory). A laboratory (UK: / l ə ˈ b ɒr ə t ər i /; US: / ˈ l æ b r ə t ɔːr i /; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed.
A photophone receiver and headset, one half of Bell and Tainter's optical telecommunication system of 1880. Optical communications, in various forms, have been used for thousands of years.
Apollo-Optik store. Apollo-Optik is a German optics company owned by EssilorLuxottica focusing on retail eyewear. It shares its logo with British eyewear retailer VisionExpress, which is also a brand of EssilorLuxottica. It was founded 1972 in Schwabach and is operating in 40 countries. It is the biggest optics company in Europe.