The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 1997
Filed:
Feb. 23, 1996
Martin Volcker, Konigsbronn-Zang, DE;
Robert Grub, Bobingen, DE;
Wolfgang Wormann, Gerolsbach, DE;
Martin Gluch, Jena, DE;
Carl-Zeiss-Stiftung, Heidenheim, DE;
Abstract
The invention relates to an ancillary module 7 for making spatially resolved measurements of the focus volume of a light beam focussed by a microscope objective 4. The light beam is especially a laser beam. The invention includes a carrier assembly having a glass plate 8 and sleeves (9, 10) mounted thereon. A piezoelectric scanning tube 12 is held on the sleeves (9, 10) essentially perpendicularly to the glass plate 8. The scanning tube 12 operates to move an optical near-field probe 13a in three mutually perpendicular directions. The optical near-field sensor is preferably a glass fiber 13 which has a tip 13a at one end thereof. This tip 13a scans the laser focus volume. At the other end of the glass fiber 13, either a photodiode 14 is provided with which the light coupled into the glass fiber is detected or a corresponding light detector can be adapted by means of an interface. The two sleeves (9, 10) are displaceable relative to each other for coarsely positioning the scanning tube 12. In addition, position detectors (18a, 18b) for determining the deflection of the piezoelectric scanning tube 12 and luminescent diodes (17a, 17b) for illuminating the fiber tip 13a can be provided. The fiber tip 13a can be illuminated by the luminescent diodes and this tip can be observed for positioning the ancillary module 7 in the viewing field of the microscope 1.