Container with lens for observing contents therein

1. A container with lens for observing contents therein, comprising: a bottom box including a containing space adapted to contain the contents, the bottom box having a tilted shape wherein the bottom box has one side height greater than another side height, wherein the bottom box includes a recess serving as a part of the containing space; and

a top lid with an integrally formed lens and formed with a plurality of air holes on a top surface thereof, wherein the lens and the top lid are made of same material and by same manufacturing process; the top lid being removably assembled with the bottom box; and wherein the recess is located in front of a focal point of the lens.

2. The container as claimed in claim 1 , wherein the whole or a part of the top lid and/or the whole or a part of the bottom box is transparent, semi-transparent, or opaque.

3. The container as claimed in claim 1 , wherein the top lid further includes a sliding rail below the top surface and a sliding plate sliding along the sliding rail, and the sliding plate is formed with a plurality of air channels corresponding to the air holes on the top surface.

4. The container as claimed in claim 3 , wherein the sliding plate includes a protrusion emerging above the top surface of the top lid, and the sliding plate slides forward or backward along the sliding rail when a force is applied to the protrusion.

5. The container as claimed in claim 3 , wherein the sliding rail and the sliding plate are adjacent to the lens.

6. The container as claimed in claim 3 , wherein the sliding rail and the sliding plate are arc-shaped fitting a part of a circumference of the lens.

7. The container as claimed in claim 1 , wherein the bottom box includes an outer shell, the outer shell has an upper section forming the containing space and a lower section forming an external space, and the containing space is isolated from the external space.

8. The container as claimed in claim 7 , wherein the outer shell is formed with an anti-theft hole and an anti-theft channel which are adapted for an anti-theft chain to pass through.

9. The container as claimed in claim 1 , wherein the recess is located on a symmetric axis of the lens.

10. The container as claimed in claim 1 , wherein the bottom box further includes one or more sloped walls connected with the recess.

11. The container as claimed in claim 10 , wherein a slope of one sloped wall is different to a slope of another sloped wall.

12. The container as claimed in claim 10 , wherein the sloped walls are integrated into a continuous wall surrounding the recess.

13. The container as claimed in claim 1 , wherein the top lid further includes one or more female couplers, and the bottom box further includes one or more male couplers capable of coupling to the female couplers.

14. The container as claimed in claim 13 , wherein each male coupler is shaped so as to be coupled with each female coupler by a rotational force and a subsequent pulling force; or each male coupler is shaped so as to be decoupled from each female coupler by a pushing force and a subsequent rotational force.

15. The container as claimed in claim 1 , wherein the top lid and/or the bottom box has a columnar shape.

16. The container as claimed in claim 15 , wherein a diameter of the top lid is equal to a diameter of the bottom box.

17. The container as claimed in claim 1 , further comprising an O-ring arranged between the top lid and the bottom box.