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1. (US20020015223) Method and apparatus for preventing application of excessive force between microscope objective and stage

المكتب : الولايات المتحدة الأمريكية
رقم الطلب: 09833542 تاريخ الطلب: 11.04.2001
رقم النشر: 20020015223 تاريخ النشر: 07.02.2002
رقم التسليم: 6507433 تاريخ التسليم: 14.01.2003
نوع النشر: B2
التصنيف الدولي للبراءات:
G02B 21/00
G02B 21/24
Description not available in lang arDescription not available in lang ar
المتقدمون: Westover Scientific, Inc.
المخترعون: Mecham, Jason
Lytle, Steve
الوكلاء: Dorsey & Whitney LLP
بيانات الأولوية: 09415614 08.10.1999 US
09833542 11.04.2001 US
العنوان: (EN) Method and apparatus for preventing application of excessive force between microscope objective and stage
الملخص: front page image
(EN)

A method and apparatus for preventing excessive closure between a retractable tip objective and the stage of a microscope which includes positioning a sensor in the turret of a microscope, which sensor is capable of detecting excessive retracting of the retractable tip into the body of the objective, and providing a controller for monitoring the sensor for such excessive retracting and issuing an alert in response to the detection of an event of such excessive retracting. The alert may be made by way of an audio output, or by a visual cue or both. Extinguishing the lamp of the microscope is a preferred visual cue, as the excessive retracting of the retractable tip is generally caused by a focusing error, and the extinguishing of the light source reduces or eliminates the ability of the user of the microscope to focus the microscope, thus attracting his or her attention.