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1957: Marvin Minsky, a professor at MIT, invents the confocal microscope, an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of using a spatial pinhole to block out-of-focus light in image formation. This technology is a predecessor to today's widely used confocal laser scanning microscope.
The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
It permits rapid switching from viewing one photograph to viewing the other, "blinking" back and forth between the two images taken of the same area of the sky at different times. This allows the user to more easily spot objects in the night sky that have changed position or brightness. It was also sometimes known as a blink microscope.
The name "camera lucida" (Latin for 'light chamber') is intended to recall the much older drawing aid, the camera obscura (Latin for 'dark chamber'). There is no optical similarity between the devices. The camera lucida is a lightweight, portable device that does not require special lighting conditions.
Léon Foucault developed a catadioptric microscope in 1859 to counteract aberrations of using a lens to image objects at high power. [2] In 1876 a French engineer, A. Mangin, invented what has come to be called the Mangin mirror, a concave glass reflector with the silver surface on the rear side of the glass. The two surfaces of the reflector ...
The primary innovation Celestron/Tom Johnson devised was a method to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve mold called a "master block" during the polishing process. [8] [9] This allowed for inexpensive mass production of corrector plates of uniform shape.
Social media was abuzz with questions about the bright light just under the moon. No, it isn’t a star or a comet but Venus shining bright enough to be seen with the naked eye.
Quantitative phase contrast microscopy or quantitative phase imaging are the collective names for a group of microscopy methods that quantify the phase shift that occurs when light waves pass through a more optically dense object. [1] [2] Translucent objects, like a living human cell, absorb and scatter small amounts of light.