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Microscope slide. A set of standard 75 by 25 mm microscope slides. The white area can be written on to label the slide. A microscope slide is a thin flat piece of glass, typically 75 by 26 mm (3 by 1 inches) and about 1 mm thick, used to hold objects for examination under a microscope. Typically the object is mounted (secured) on the slide, and ...
A total internal reflection fluorescence microscope (TIRFM) is a type of microscope with which a thin region of a specimen, usually less than 200 nanometers can be observed. TIRFM is an imaging modality which uses the excitation of fluorescent cells in a thin optical specimen section that is supported on a glass slide.
In light microscopy, oil immersion is a technique used to increase the resolving power of a microscope. This is achieved by immersing both the objective lens and the specimen in a transparent oil of high refractive index, thereby increasing the numerical aperture of the objective lens. Without oil, light waves reflect off the slide specimen ...
The Lidbetter Photographic collection consists of 167 glass negatives that are 17 x 22 cm in size, 10 that are 12 x 16 cm, and 9 that are 8 x 10.5 cm. In addition there are 80 plus non-glass negatives of various sizes, all dated from 1925 onwards. [22] Rhodes University. Sir George Cory Lantern Slide Collection. Makhanda.
Magic lantern slide by Carpenter and Westley. The magic lantern, also known by its Latin name lanterna magica, was an early type of image projector that used pictures—paintings, prints, or photographs —on transparent plates (usually made of glass), one or more lenses, and a light source.
Stereoscope. A stereoscope is a device for viewing a stereoscopic pair of separate images, depicting left-eye and right-eye views of the same scene, as a single three-dimensional image. A typical stereoscope provides each eye with a lens that makes the image seen through it appear larger and more distant and usually also shifts its apparent ...
Camera lucida. A camera lucida is an optical device used as a drawing aid by artists and microscopists. The camera lucida projects an optical superimposition of the subject being viewed, onto the surface upon which the artist is drawing. The artist sees both scene and drawing surface simultaneously, as in a photographic double exposure.
The company was founded in 1881 in Ottawa, Kansas, by two brothers, Elmer Underwood (born Fulton County, Illinois 1859 - died St. Petersburg, Florida 1947) and Bert Elias Underwood (born in Oxford, Illinois 1862 - died Tucson, Arizona 1943). [1] They moved to Baltimore and then to New York City in 1891.