Virtual-reality or augmented-reality viewer for a mobile electronic device

1. A viewer for a mobile electronic device, said viewer comprising:

a central body;

a left lens and a right lens arranged in the central body;

a left side body movably connected to the central body;

a right side body movably connected to the central body; and

a tension mechanism which biases the left and right side bodies towards each other;

wherein the viewer is switchable between:

a first state where:

the left side body covers and overlies a left portion of the central body and at least part of the left lens; and

the right side body covers and overlies a right portion of the central body and at least part of the right lens; and

a second state where:

the left side body does not cover and overlay the left portion of the central body or the left lens, and is at a non-zero angle to the central body; and

the right side body does not cover and overlay the right portion of the central body or the right lens, and is at a non-zero angle to the central body; and

wherein the tension mechanism biases the left and right side bodies towards each other when the viewer is in the first state.

2. The viewer according to claim 1 ;

wherein the left lens is at least partially covered by the left side body when the viewer is in the first state.

3. The viewer according to claim 1 ;

wherein the right lens is at least partially covered by the right side body when the viewer is in the first state.

4. The viewer according to claim 1 ;

wherein the viewer is configured to hold the mobile electronic device between the left side body and the right side body when the viewer is in the second state.

5. The viewer according to claim 1 ;

wherein the left side body includes a left-side recess configured to receive a first portion of the mobile electronic device; and

wherein the right side body includes a right-side recess configured to receive a second portion of the mobile electronic device.

6. The viewer according to claim 5 ;

wherein the left-side and right-side recesses are formed so as to face each other when the viewer is in the second state.

7. The viewer according to one of claim 6 ;

wherein the left-side and right-side recesses are configured to hold the mobile electronic device between the left side body and the right side body when the viewer is in the second state; and

wherein the screen of the mobile device positioned to face toward and at predetermined distance from the left lens and right lens.

8. The viewer according to claim 1 ;

wherein the left side body comprises an opening configured to expose an input mechanism, an output mechanisms, a port, or any combination thereof, of the electronic mobile device when the electronic mobile device is arranged in the viewer.

9. The viewer according to claim 1 ;

wherein the right side body comprises an opening configured to expose an input mechanism, an output mechanisms, a port, or any combination thereof, of the electronic mobile device when the electronic mobile device is arranged in the viewer.

10. The viewer according to claim 1 ;

wherein the tension mechanism connects with and extends between the left side body and the right side body.

11. The viewer according to claim 10 ;

wherein a left portion of the tension mechanism is attached to a left end of the left side body;

wherein a right portion of the tension mechanism is attached to a right end of the right side body; and

wherein the tension mechanism biases the left end of the left side body toward the right end of the right side body.

12. The viewer according to claim 1 ;

wherein the tension mechanism is an elastic or spring-like device.

13. The viewer according to claim 1 ;

wherein at least one side body of the left side body and the right side body is configured to satisfy the formula:

Y 2 =√{square root over ( LS 2 +( B−A ) 2 )}

where:

Y 2 is a distance along the at least one side body between a corresponding lens, nearest to the at least one side body, and a screen of the electronic mobile device when the electronic mobile device is arranged in the viewer;

LS is a shortest distance between the corresponding lens and the screen of the mobile device when the mobile device is arranged in the viewer;

B is a distance between a center of the electronic mobile device and an end of the mobile device which contacts the at least one side body when the electronic mobile device is arranged in the viewer; and

A is a distance between a center of the central body and an end of the central body which connects with the at least one side body when the viewer is in the second state.

14. The viewer according to claim 1 ;

wherein at least one side body of the left side body and the right side body is configured to satisfy the formula:

Y

1

≥

X

2

-

3

4

⁢

Z

where:

Y 1 is a length of a channel or cavity in the at least one side body in which the corresponding portion of the central body is accommodated in the first state;

X 2 is a distance from a center-most edge, nearest to a center of the central body, of a corresponding lens, nearest to the at least one side body, to a corresponding end of the corresponding portion of the central body; and

Z is a diameter of the left lens.

15. The viewer according to claim 14 ;

wherein the at least one side body is configured to satisfy the formula:

Y

1

≥

X

2

-

1

2

⁢

Z

.

16. The viewer according to claim 15 ;

wherein the at least one side body is configured to satisfy the formula:

Y 1 ≥X 2 .

17. The viewer according to claim 1 ;

wherein at least one side body of the left side body and the right side body is configured so that at least 25% of a width of a corresponding lens, nearest to the at least one side body, on a mobile-device-facing side of the viewer is covered by the at least one side body when the viewer is in the first state.

18. The viewer according to claim 17 ;

wherein the at least one side body is configured so that at least 50% of the width of the corresponding lens on the mobile-device-facing side of the viewer is covered by the at least one side body when the viewer is in the first state.

19. The viewer according to claim 18 ;

wherein the at least one side body is configured so that 100% of the width of the corresponding lens on the mobile-device-facing side of the viewer is covered by the at least one side body when the viewer is in the first state.

20. The viewer according to claim 17 ;

wherein the at least one side body is configured so that at least 25% of a width of the corresponding lens on a user-facing side of the viewer is covered by the at least one side body when the viewer is in the first state.

21. The viewer according to claim 20 ;

wherein the at least one side body is configured so that at least 50% of the width of the corresponding lens on the user-facing side of the viewer is covered by the left side body when the viewer is in the first state.

22. The viewer according to claim 21 ;

wherein the at least one side body is configured so that 100% of the width of the corresponding lens on the user-facing side of the viewer is covered by the at least one side body when the viewer is in the first state.

23. The viewer according to claim 1 ;

wherein the central body includes a central cut out located longitudinally between the two lenses, the center cut out being adapted to fit over a user's nose.

24. The viewer according to claim 1 ;

wherein at least one the left side body and the right side body is slidably movable with respect to the central body.

25. The viewer according to claim 1 ;

wherein at least one of the left side body and the right side body is pivotally movable with respect to the central body.

26. The viewer according to claim 1 ;

wherein at least one of the left side body, the right side body, and the central body is made of plastic.

27. The viewer according to claim 1 ;

wherein the mobile device is a mobile phone, smartphone, or tablet computer.