Portable optical magnifying device

Details Portable optical magnifying device Portable optical magnifying device

2005-05-03

2005-05-03

Robinson, Mark A. (Department: 2872)

Optical: systems and elements

Compound lens system

Microscope

C359S818000

Reexamination Certificate

active

06888673

ABSTRACT:
A portable optical magnifying device (1), for observing specimens within a specimen-vessel having a transparent flat wall, comprises an eyepiece (4) and an objective (3), a light-path being defined therebetween. The device (1) includes a spacer (7) arranged at least partly around the objective (3) and which is adapted in use to seat the device (1) against the flat wall of the specimen vessel with the objective (3) closely adjacent but spaced therefrom, and with its optical axis normal thereto. The device (1) further includes means (9) for releasably attaching the device (1) to the flat wall, with the space (7) bearing against the flat wall of the specimen vessel. Attachment is achieved by evacuation of the space between objective lens, spacer and flat wall.

REFERENCES:
patent: 5497267 (1996-03-01), Ishikawa et al.
patent: 6249344 (2001-06-01), Virag
patent: 6313943 (2001-11-01), Ikado et al.
patent: 6628458 (2003-09-01), Brock

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