Synonym Discussion of Grind. to reduce to powder or small fragments by friction (as in a mill or with the teeth); to wear down, polish, or sharpen by friction… See the full definition

Define grinding on. grinding on synonyms, grinding on pronunciation, grinding on translation, English dictionary definition of grinding on. v. ground, grind·ing, grinds v. tr. 1. ... To shape, sharpen, or refine with friction: grind scissors to a fine edge; grind lenses for eyeglasses. 2. To rub (two surfaces) together harshly; gnash: grind ...

Spherical lens for optics : a complete guide. Spherical lens refers to a type of optical lens with one or two surface shaped like a cut of sphere, meaning this surface can be defined from a center reference point and a fix radius of curvature. Spherical lens are the more commons form of optical lens, being easier to design, easier to manufacture and …

Перевод lens grinding с английского на русский См. также в других словарях: Aspheric lens — An aspheric lens or asphere is a lens whose surfaces have a profile that is neither a portion of a sphere nor Lens - Definition, Types, Aberrations, Uses - BYJUSLens.

Historical grinding machine for spectacle lenses. By Hanna Diewald 27. May 2020. Mineral glass is difficult to work, especially the rock crystal beryl initially used to make spectacle lenses, because of its …

GRINDING definition: 1. a situation in which people are extremely poor over a long period 2. a situation in which people…. Learn more.

The most common way of correcting vertical imbalance is to induce a vertical prismatic effect in the lower half of one lens. This type of correction is referred to as bi-centric grinding, or slab-off. It can be used to correct for imbalance amounts ranging from 1.5D to 6D. Slab-off provides base up (BU) prism and is applied to the most minus ...

When the lens is removed from the generator the back surface is rough, with a frosted appearance, from the process of grinding the prescription onto the blank. This multistep process is called "Fining and polishing". The process involves placing the lenses into a Finer which uses a polishing block called a lap. The first step in the finer ...

lens: [noun] a piece of transparent material (such as glass) that has two opposite regular surfaces either both curved or one curved and the other plane and that is used either singly or combined in an optical instrument for forming an image by focusing rays of light. a combination of two or more simple lenses. a piece of glass or plastic used ...

A lens grinder is someone who shapes lens blanks for eyeglasses or contact lenses cutting, grinding, or otherwise shaping them. The lens grinder will use specialized machinery, which is usually computer-controlled, to make precise cuts and grinds to a customer's prescription specifications. While most grinders work in an optical lab, others ...

Lens, in optics, piece of glass or other transparent substance that is used to form an image of an object by focusing rays of light from the object. A lens is a piece of transparent material, usually circular in shape, with two polished surfaces, either or both of which is curved and may be either convex or concave.

It is a special lens grinding technique used to neutralize the unwanted prism effect when looking down through the reading area (usually a bifocal) of widely differing lens powers. Slab off insures that the near image will not be displaced. If it is displaced, the patient will see two different images at near in different places although he is ...

Grind definition: to wear, smooth, or sharpen by abrasion or friction; whet. See examples of GRIND used in a sentence.

Lens manufacturing is a meticulous and intricate process that integrates grinding, polishing, and coating to create lenses with exceptional optical properties. Each technique plays a critical role in shaping the lens's curvature, refining its surface quality, and enhancing its performance. As technology continues to advance, lens …

A geologic deposit bounded by converging surfaces (at least one of which is curved), thick in the middle and thinning out toward the edges, resembling a convex lens. A lens may be double-convex or plano-convex. ---v. To disappear laterally in all directions; e.g., a unit is said to lens out within a mapped area.

Grinding is the initial and crucial step in lens manufacturing, where a rough lens blank is shaped into its intended curvature and dimensions. The lens blank,...

Lens manufacturing is a meticulous and intricate process that integrates grinding, polishing, and coating to create lenses with exceptional optical properties. Each technique plays a critical role ...

Diderot's encyclopedia, published in France from 1751, includes illustrations of various devices and tools used to make lenses for a variety of optical instruments, including spectacles. The grinding …

Grinding is the initial and crucial step in lens manufacturing, where a rough lens blank is shaped into its intended curvature and dimensions. The lens blank, …

A lens grinder is someone who shapes lens blanks for eyeglasses or contact lenses cutting, grinding, or otherwise shaping them. The lens grinder will use specialized …

The grinding purpose and fundamental principle. 1. Purpose: (1) to remove the damaged layer of fine grinding to meet the requirements of the specified appearance limit.

Thread grinding is the process of creating threads on screws, nuts, and other fasteners. It is known for its ability to produce precise and uniform threads. Technical Specifications. Running Speeds: This process operates at speeds around 1,500 to 2,500 fpm (7.6 to 12.7 m/s).

Page 1 of 2 - Manually grinding a lens - posted in ATM, Optics and DIY Forum: Hello, I'll start to grind a lens with a photographer friend who wanted after years of photography to make one himself to get …

Optical Lens Grinding / Machine Grinding. United Lens Company machine grinds all types of optical lenses—and create all types of geometries! Our exhaustive equipment and focus on continual …

The FastGrind revolutionizes how opticians dispense by using all-in-one modified lens surfacing to produce digital lenses & HD progressives. FastGrind uses only tap water to generate, fine, and polish a pair of …

Grind definition: to wear, smooth, or sharpen by abrasion or friction; whet. See examples of GRIND used in a sentence.

Define grinding down. grinding down synonyms, grinding down pronunciation, grinding down translation, English dictionary definition of grinding down. v. ground, grind·ing, grinds v. tr. 1. ... To shape, sharpen, or refine with friction: grind scissors to a fine edge; grind lenses for eyeglasses. 2. To rub (two surfaces) together harshly ...

The first step in the lens manufacturing process is generation. This process will 'generate' the shape of the lens into the blank, getting close to its final shape, …

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grinding - WordReference English dictionary, questions, discussion and forums. All Free. ... by rubbing or friction: [~ + object] to grind a lens; to grind knives. to crush (something) into small particles, as by pounding; pulverize: [~ + …