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  2. Upside down goggles - Wikipedia

    en.wikipedia.org/wiki/Upside_down_goggles

    His device used short-focus lenses. Stratton used a one-tube, monocular device because this also reverses left and right and he wished to set up an experiment without distortion of depth perception. [5] In 1931 Theodor Erismann and Ivo Kohler conducted a series of experiments using mirror-prismatic upside down goggles employing only one mirror. [6]

  3. Shred Optics - Wikipedia

    en.wikipedia.org/wiki/Shred_Optics

    Shred’s patented NoDistortion technology [16] uses a semi-permeable valve to equalize the pressure between a goggle’s dual lens chamber and the current atmospheric conditions. [14] This eliminates optical distortion [17] while preventing moisture from entering the goggles’ lens chamber. Shred introduced its NoDistortion technology in 2011.

  4. Distortion (optics) - Wikipedia

    en.wikipedia.org/wiki/Distortion_(optics)

    In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image.It is a form of optical aberration that may be distinguished from other aberrations such as spherical aberration, coma, chromatic aberration, field curvature, and astigmatism in a sense that these impact the image sharpness without changing an ...

  5. George M. Stratton - Wikipedia

    en.wikipedia.org/wiki/George_M._Stratton

    George Malcolm Stratton (September 26, 1865 – October 8, 1957) was an American psychologist who pioneered the study of perception in vision by wearing special glasses which inverted images up and down and left and right.

  6. Night-vision device - Wikipedia

    en.wikipedia.org/wiki/Night-vision_device

    Edge distortion is improved, photo sensitivity is increased, and the resolution can be as high as 60 lp/mm. CORE is still designated Gen 1 as it does not utilize a microchannel plate. A night-vision contact lens prototype places a thin strip of graphene between layers of glass that reacts to photons to brighten dark images.

  7. Anaglyph 3D - Wikipedia

    en.wikipedia.org/wiki/Anaglyph_3D

    If you view the image with red-cyan 3D glasses, the text will alternate between Red and Blue. 3D red cyan glasses are recommended to view this image correctly. Anaglyph 3D is the stereoscopic 3D effect achieved by means of encoding each eye's image using filters of different (usually chromatically opposite ) colors, typically red and cyan .

  8. Ballistic eyewear - Wikipedia

    en.wikipedia.org/wiki/Ballistic_eyewear

    Ballistic eyewear is a form of glasses or goggles that protect from small projectiles and fragments. For the U.S. military, choices are listed on the Authorized Protective Eyewear List (APEL). [ 1 ] Ballistic eyewear including examples that meet APEL requirements are commercially available for anyone who wishes to buy it.

  9. Globe effect - Wikipedia

    en.wikipedia.org/wiki/Globe_effect

    with the distortion parameter [,]. This yields the f-tan theta condition (1) in the special case k = 1 {\displaystyle k=1} . The case k = 0.5 {\displaystyle k=0.5} is known as the circle condition and provides the pincushion-distorted pattern which was implemented by Helmholtz in his checkerboard. [ 7 ]

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