Device and method for deblocking optical workpieces, in particular spectacle lenses
US-8931769-B2 · Jan 13, 2015 · US
Lens blank having a temporary grip coating for a method for manufacturing spectacle lenses according to a prescription
US9529123B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9529123-B2 |
| Application number | US-201514746941-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 23, 2015 |
| Priority date | Jul 5, 2014 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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Abstract
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A lens blank is proposed, having a first face, an opposite, second face, and an edge inbetween, the first face possessing a final curvature and being coated, in this order, with an antireflection coating, a top coating, and a temporary grip coating. The antireflection coating has a stack of alternating antireflection layers with an outermost layer, whereas the top coating is selected from a group including hydrophobic, oleophobic and dirt repelling coatings. The temporary grip coating and the outermost layer of the antireflection coating are made from one and the same coating material. In this way the temporary grip coating effectively serves to provide sufficient adhesion to the blocking material on the block piece in the processing steps, and can easily be removed from the processed lens upon deblocking without degrading the repelling properties of the top coating.
First claim
Opening claim text (preview).
The invention claimed is: 1. A lens blank comprising a first face, a second face opposite said first face, and an edge between said first face and said second face, said first face possessing a final curvature and being coated at least with an antireflection coating, a top coating on top of said antireflection coating, and a temporary grip coating on top of said top coating, wherein said antireflection coating comprises a stack of alternating antireflection layers of high index and…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9529123B2 cover?
- A lens blank is proposed, having a first face, an opposite, second face, and an edge inbetween, the first face possessing a final curvature and being coated, in this order, with an antireflection coating, a top coating, and a temporary grip coating. The antireflection coating has a stack of alternating antireflection layers with an outermost layer, whereas the top coating is selected from a gro…
- Who is the assignee on this patent?
- Satisloh Ag
- What technology area does this patent fall under?
- Primary CPC classification G02B1/18. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).