Closed observational device for electron microscope

Abstract

A closed observational device for an electron microscope is formed of a housing. The housing includes a liquid chamber formed therein, at least one view hole formed at each of a top side thereof and a bottom side thereof and communicating with the liquid chamber and coaxially aligned with the other, and a film mounted to and sealing each of the view holes. Accordingly, a general specimen or a live cell can be placed into the liquid chamber for microscopic observation under the electron microscope. Besides, the present invention can enclose the liquid inside the housing to prevent the liquid from exhausting outward or volatilization.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a first preferred embodiment of the present invention.

FIG. 2 is a sectional view of the first preferred embodiment of the present invention.

FIGS. 3(A), 3(B), 3(C), and 3(D) illustrate alternative formations of the film according to the first preferred embodiment of the present invention.

FIG. 4 is a schematic view of the first preferred embodiment of the present invention in cooperation with the electron microscope for observation.

FIG. 5 is another sectional view of the first preferred embodiment of the present invention, showing that the housing is formed of a cover shell and a base shell combined together.

FIG. 6 is a sectional view of a second preferred embodiment of the present invention.

FIG. 7 is a schematic view of the second preferred embodiment of the present invention in cooperation with the electron microscope for observation.

FIG. 8 is a sectional view of a third preferred embodiment of the present invention.

FIG. 9 is a schematic view of the third preferred embodiment of the present invention in cooperation with the electron microscope for observation.

FIG. 10 is another sectional view of the third preferred embodiment of the present invention in cooperation with a specimen holder.

Claims

1. A closed observational device for an electron microscope, comprising: a housing having a liquid chamber formed therein, at least one view hole formed at each of a top side thereof and a bottom side thereof and communicating with said liquid chamber and coaxially aligned with the other, and a film mounted to and sealing each of said view holes.

2. The device as defined in claim 1, wherein each of said view holes has a diameter of 5-500 μm.

3. The device as defined in claim 1, wherein each of said films is located to an end of each of said view holes, abutting said liquid chamber, and the distance between said two films is smaller than 10 μm.

4. The device as defined in claim 3, wherein each of said films has a plurality of strips mounted at least one end surface thereof.

5. The device as defined in claim 4, wherein said strips are disposed on each of said films in parallel or intersection or concentric circle or radius.

6. The device as defined in claim 3, wherein each of said films and said housing are formed in one piece.

7. The device as defined in claim 6, wherein said strips and each of said films are formed in one piece.

8. The device as defined in claim 1, wherein said housing further comprises an inlet and an outlet formed at two sides of said housing respectively.

9. A closed observational device for an electron microscope, comprising: a housing having at least one spacer for partitioning its internal space into a liquid chamber and at least one gas chamber, at least one view hole formed at each of a top side of and a bottom side of said liquid chamber and located at said at least one spacer and communicating with said liquid chamber, at least one gas aperture formed at each of a top side thereof and a bottom side thereof and coaxially aligned with said view holes, a film mounted to and sealing each of said gas apertures, and at least one pressure balance aperture formed at a side of said gas chamber, wherein said at least one gas chamber at least encapsulates said view holes.

10. The device as defined in claim 9, wherein each of said films is located to an end of each of said gas apertures, abutting said gas chamber.

11. The device as defined in claim 9, wherein said housing further comprises an inlet and an outlet formed at two sides of said liquid chamber respectively.

12. A closed observational device for an electron microscope, comprising: a housing having at least two spacers for partitioning its internal space into a liquid chamber formed therein, at least one gas chamber formed therein, at least one buffer chamber formed therein, at least one view hole formed at each of a top side of and a bottom side of said liquid chamber and located at one of said at least two spacers and communicating with said liquid chamber, at least one gas aperture formed at each of a top side of and a bottom side of said gas chamber and located at the other spacer, at least one outer aperture formed at each of a top side of and a bottom side of said housing and located at said housing and coaxially aligned with said view holes and said gas apertures, a film mounted to and sealing said outer apertures, at least one gas inlet formed at a side of said at least one gas chamber, and at least one pumping port formed at a side of said at least one buffer chamber, wherein said at least one gas chamber at least encapsulates said view holes, and said at least one buffer chamber at least encapsulates said gas apertures.

13. The device as defined in claim 12, wherein each of said films is located to an end of each of said outer apertures, abutting said at least one buffer chamber.

14. The device as defined in claim 12, wherein said housing further comprises an inlet and an outlet formed at two sides of said liquid chamber respectively.