Optical: systems and elements – Compound lens system – Microscope
Reexamination Certificate
2008-01-01
2008-01-01
Nguyen, Thong Q (Department: 2872)
Optical: systems and elements
Compound lens system
Microscope
C359S383000, C359S392000
Reexamination Certificate
active
07315412
ABSTRACT:
An optical microscope of high stability such that problems wherein an image of a sample becomes unsharp during observation and movement (drift) of the object point (object) occurs are solved because the defocusing in the Z direction attributable to thermal expansion of the optical microscope is compensated. The optical instruments are characterized as comprising an optical system unit symmetrical to the optical axis in terms of weight and shape and a peripheral unit having a sample positioning mechanism is constituted by combining components having temperature dependences close to zero.
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Kinoshita Kazuhiko
Shio Megumi
Japan Science and Technology Corporation
Nguyen Thong Q
Rader & Fishman & Grauer, PLLC
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