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Snap announced an upgraded version of its Spectacles augmented-reality glasses on Tuesday, doubling down on its bet that wearable devices to enhance the view of the real world will be one of the ...
The prismatic lenses of the belay glasses are arranged so as to bend light from above through total internal reflection into the observer's eye, allowing the belayer to observe the climber while maintaining a comfortable head/neck position. The design based on the eyeglasses frame provides for a split field of vision: the peripheral field ...
Rosy retrospection. Rosy retrospection is a proposed psychological phenomenon of recalling the past more positively than it was actually experienced. The highly unreliable nature of human memory is well documented and accepted amongst psychologists. Some research suggests a 'blue retrospective' which also exaggerates negative emotions.
Glasses, also known as eyeglasses and spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces that rest over the ears. Man with glasses. Glasses are typically used for vision correction ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
Pince-nez. Pince-nez (/ ˈpɑːnsneɪ / or / ˈpɪnsneɪ /, plural form same as singular; [1] French pronunciation: [pɛ̃sˈne]) is a style of glasses, popular in the late 19th and early 20th centuries, that are supported without earpieces, by pinching the bridge of the nose. The name comes from French pincer, "to pinch", and nez, "nose".
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