Examples of 'lens blank' in a sentence
Meaning of "lens blank"
lens blank - a condition where a camera lens produces blank or overexposed images, often due to issues with light exposure or focus
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- A rough, opaque piece of glass of suitable size, design and composition for use, when ground and polished, as a multifocal lens for use in a pair of eyeglasses.
How to use "lens blank" in a sentence
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lens blank
The lens blank can be a polarized lens.
The lens is cut from a lens blank.
A lens blank having a peripheral edge is provided.
The substrate is preferably a lens blank.
A lens blank having an edge is provided.
A front surface of the uncut lens blank is spherical.
This spectacle lens blank is provided according to step a described above.
Method for determining the optic center of a lens blank.
The lens blank can be either a plastic or a glass lens blank.
Method for fitting a holding block to a semifinished ophthalmic lens blank.
The lens blank is mounted to the spindle of the lathe and turned.
This will necessitate the expensive step of using a larger lens blank.
Edging of a lens blank typically requires the application of a block to a surface thereof.
The invention relates to a method of fitting a holding block to a semifinished ophthalmic lens blank.
The substrate may for example be a spectacle lens blank composed of a plastic material.
See also
The at least one feature may be a machined or molded edge of the lens blank.
At the worst the lens blank comes off the block piece and is ruined.
The following description will be made referring in most of the cases to a lens blank.
The ring is thus interposed between the lens blank and the blocking pin.
The lenticular portion may extend to the outer edge of the uncut lens blank.
The first carrier element and the lens blank are then covered with a second carrier element.
This leads to a maximum reduction of the thickness of the uncut lens blank resulting.
The fixture is a device that holds the lens blank during multiple processing operations including blocking.
Heretofore various materials were employed to secure the lens blank to the lens block.
A lens blank can consequently encompass,.
The pick head may be configured to hold the lens blank using a vacuum.
Also, the lens blank material may be tinted.
Prior methods of manufacturing lenses relied on mechanical centering for blocking the lens blank.
The Camber lens blank.
Inflatable membrane apparatus and process for transferring a coating onto a surface of a lens blank.
By doing this, the lens blank is centered on the pick head.
The precision positioning system may comprise a pick head configured to hold the lens blank.
A contact lens blank formed according to the method of claim 1.
The further claims define preferred executions and a contact lens blank obtained by the method.
Providing a lens blank having at least one geometrically defined surface ;.
CB represents the centre of the lens blank.
The resulting laminated glass lens blank can be subjected, if necessary, to edging.
In this method, a load or force is applied to a lens blank.
A semi-finished lens blank has a front face and a rear face.
The lenses can be machined, or lathed, to specification from a plastic lens blank.
In response to this normal force, the lens blank elastically deforms.
An ophthalmic lens or lens blank producable by polymerizing a polymerizable, homogeneous composition comprising,.
This, for example, facilitates subsequent manufacturing of the uncut lens blank.
In particular, the uncut lens blank is a unitary element consisting of a single material.
In general, a point on the back surface of the uncut lens blank is located.
Holding said lens blank on said first carrier element first surface ;.
The thermoplastic block 2 can be rapidly reused to machine another lens blank.
Releasing said lens blank from the mold part in which it was left ;.
As explained above, the lens can be a finished lens or a semi-finished lens blank.
The lens blank 10 can be one of the first or second configurations described above.
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I see you left it blank in your questionnaire
Blank provides a blank sheet as the cover
This paper is blank and you are a fake
Examples of using Lens
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Lens changing instructions for lazer eyewear
The surface of the lens is very delicate
Keep lens filters out of reach of children
