Optical: systems and elements – Compound lens system – Microscope
Reexamination Certificate
2006-02-21
2006-02-21
Robinson, Mark A. (Department: 2872)
Optical: systems and elements
Compound lens system
Microscope
C359S368000, C359S291000, C359S224200
Reexamination Certificate
active
07002739
ABSTRACT:
A laser microscope is provided, which is low in manufacturing costs and compact in structure. A laser beam emitted from a semiconductor laser is converted into a rectilinear light beam which has divergence in one direction by use of a micromirror device. The micromirror device comprises a plurality of micromirrors arranged in a two-dimensional array, and each micromirror is vibrated at a high speed by a driving pulse. Since each micromirror is movably supported by a hinge, a mirror layer of the micromirror is displaced in a curved manner by the electrostatic attractive force caused by the driving pulse. By this curved displacement of the mirror layer, each micromirror operates as a cylindrical mirror to convert an incident laser beam into an incoherent light beam which diverges in one direction. The rectilinear beam is projected to a sample through a beam deflection device and an objective lens, and a reflected light from the sample is made incident on a linear image sensor. Since the micromirror device is relatively low in costs and a relatively large diverging angle is obtained, the laser microscope low in manufacturing costs and compact in structure can be achieved.
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U.S. Appl. No. 60/433,825.
Fineman Lee
Ohkura Industry Co.
Oliff & Berridg,e PLC
Robinson Mark A.
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