Window scraper for an optical instrument

An instrument and optical surface technology, applied in the field of window scrapers for optical instruments, which can solve the problems of inability to remove particles and degraded optical performance.

Inactive Publication Date: 2011-04-13
METTLER TOLEDO AUTOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Optical instruments operating during crystallization or granulation processes that undergo particle growth (such as, but not limited to, particle-scale characterization scanners), often have their optical performance degraded by deposition of particles on their outer windows
This deposit is often so rigidly attached to the window that squeegee and brush type wipers cannot remove the particles from the window

Method used

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  • Window scraper for an optical instrument
  • Window scraper for an optical instrument
  • Window scraper for an optical instrument

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Embodiment Construction

[0027] Although the exemplary embodiments have been shown and described, it will be appreciated that various changes can be made therein without departing from the spirit and scope of the invention.

[0028] Embodiments of the present invention relate to scrapers for windows (including but not limited to the processing side optical surface of the windows). When used here, the optical surface is present in the optical instrument but is not necessarily limited to the optical instrument.

[0029] The window can be any surface that collects and attracts particles or any other type of material or a surface on which particles or any other type of material accumulate. For example, applications in which embodiments of the window scraper disclosed herein can be used include particle treatment, such as in the pharmaceutical field, where binders (such as cellulose and lactose) may accumulate on the instrument. However, other applications of the disclosed window scraper are also feasible, suc...

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PUM

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Abstract

A scraper for an optical surface of a device is disclosed. The scraper includes a blade having an edge that is rigid and non-deforming to withstand high shear stresses. The blade is configured to rotate about a first axis parallel to the optical surface and also configured to move in a line with respect to a second axis perpendicular to the optical surface. This allows the rigid, non-deforming blade to maintain contact with the optical surface. Furthermore, the edge is configured to move across the optical surface to remove any materials adhered to the surface. The scraper can be used to clean the optical surface of an instrument, for example.

Description

[0001] Cross references to related applications [0002] This application claims the rights of U.S. Provisional Patent Application 61 / 036333 filed on March 13, 2008, which is incorporated herein by reference in its entirety. Background technique [0003] Optical instruments that work in the process of crystallization or granulation undergoing particle growth (such as, but not limited to, particle-scale characteristic measurement scanners) often reduce their optical performance due to the deposition of particles on their outer windows. This deposit is often so rigidly attached to the window that the squeegee and brush type wiper cannot remove particles from the window. [0004] Therefore, alternative solutions are desired to overcome the problems of using conventional brush type wipers and squeegees. Summary of the invention [0005] The content of the present invention introduces a selected set of concepts in a simplified form, and the concepts will be further explained in the detail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/00G02B23/24
CPCG02B23/2476B08B1/00A61B1/126G02B27/0006B08B1/04A61B1/00087
Inventor R·贝克尔C·J·科尔尼利厄斯O·哈曼E·门敦卡R·E·拉维古约尔
Owner METTLER TOLEDO AUTOCHEM
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