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cross.com. A.T. Cross Company, LLC is an American manufacturing company of writing implements, based in Providence, Rhode Island. Founded in 1846, it is one of the oldest pen manufacturers in the world. Cross' products include fountain, ballpoint, and rollerball pens, mechanical pencils and refills. The company also manufactures accessories for ...
The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]
2. How about an illustration to visually explain what it meant by the "prism dioptres" section? 3. Can prismatic lenses be included with bifocals, progressive lenses, polarizing, tinting, Crizol lenses, etc? 4. Hillary Rodham Clinton used prismatic lenses temporarily after her concussion, although her article doesn't mention that. What other ...
The Pilot Pen Corporation was founded by Ryosuke Namiki with Masao Wada (和田正雄) in 1918 under the name of the Namiki Manufacturing Company. [5] In 1926 it established overseas offices in Malaysia, Singapore, Boston, London and Shanghai. In 1938 the name of the company changed to the Pilot Pen Co., Ltd. It was again renamed in 1950 as the ...
Roof prism. A roof pentaprism used in Single-lens reflex cameras; the lower right face is the roof ( dach ). A roof prism, also called a Dachkanten prism or Dach prism (from German: Dachkante, lit. "roof edge"), is a reflective prism containing a section where two faces meet at a 90° angle, resembling the roof of a building and thus the name.
The Space Pen (also known as the Zero Gravity Pen ), marketed by Fisher Space Pen Company, is a pen that uses pressurized ink cartridges and is able to write in zero gravity, underwater, over wet and greasy paper, at any angle, and in a very wide range of temperatures. Astronaut Walter Cunningham, Apollo 7 lunar module pilot, writes with space ...
Electroanalgesia is a form of analgesia, or pain relief, that uses electricity to ease pain. Electrical devices can be internal or external, at the site of pain (local) or delocalized throughout the whole body. It works by interfering with the electric currents of pain signals, inhibiting them from reaching the brain and inducing a response ...
Correction tape. Correction tape is an alternative to correction fluid used to correct mistakes during typing, or, in some forms, handwriting. One side of the tape, which is placed against the area to cover, is coated in a white, opaque masking material. Pressure applied to the other side of the tape transfers this material to the paper.