Periscope optical module
A periscope optical module is provided. The periscope optical module includes a first optical element, a second optical element, and a third optical element. The first optical element has a first optical axis. The second optical element corresponds to the first optical element and adjusts a forward direction of a light. The third optical element has a second optical axis. The third optical element corresponds to the second optical element. The light passes through the first optical element, the second optical element, and the third optical element consecutively. The first optical axis is not parallel to the second optical axis. A minimum size of the first optical element in a direction that is perpendicular to the first optical axis is larger than a maximum size of the third optical element in a direction of the first optical axis.
1. A periscope optical module, comprising:
a first optical element with a first optical axis;
a second optical element corresponding to the first optical element and adjusting a forward direction of a light; and
a third optical element with a second optical axis, wherein the third optical element corresponds to the second optical element;
wherein the light passes through the first optical element, the second optical element, and the third optical element consecutively and the first optical axis is perpendicular to the second optical axis;
wherein a minimum size of the first optical element in a direction that is perpendicular to the first optical axis is larger than a maximum size of the third optical element in a direction of the first optical axis.
2. The periscope optical module as claimed in claim 1 , wherein the minimum size of the first optical element in the direction that is perpendicular to the first optical axis is larger than a maximum size of the second optical element in a direction of the second optical axis.
3. The periscope optical module as claimed in claim 2 , wherein the maximum size of the second optical element in the direction of the second optical axis is larger than the maximum size of the third optical element in the direction of the first optical axis.
4. The periscope optical module as claimed in claim 1 , wherein a focal length of the first optical element is positive and a focal length of the third optical element is negative.
5. The periscope optical module as claimed in claim 1 , wherein a focal length of the first optical element is negative and a focal length of the third optical element is positive.
6. The periscope optical module as claimed in claim 1 , further comprising an aperture located between the first optical element and the second optical element or between the second optical element and the third optical element.
7. The periscope optical module as claimed in claim 1 , wherein at least one of the first optical element and the third optical element comprises a cutting portion.
8. The periscope optical module as claimed in claim 1 , further comprising a holder holding the first optical element, wherein the holder overlaps the second optical element when viewed along the first optical axis.
9. The periscope optical module as claimed in claim 1 , further comprising a first driving assembly driving the first optical element to move relative to the second optical element.
10. The periscope optical module as claimed in claim 9 , wherein the first driving assembly further comprises a plurality of driving components, and the second optical element is located between the driving components when viewed along a direction that is perpendicular to the first optical axis.
11. The periscope optical module as claimed in claim 9 , wherein the first driving assembly overlaps the third optical element when viewed along the first optical axis.
12. The periscope optical module as claimed in claim 9 , wherein the second optical element is located between the first driving assembly and the third optical element when viewed along a direction that is perpendicular to the first optical axis.
13. The periscope optical module as claimed in claim 9 , wherein the second optical element is located between the first driving assembly and the first optical element when viewed along the first optical axis.
14. The periscope optical module as claimed in claim 9 , wherein the third optical element is located between the second optical element and the first driving assembly when viewed along a direction that is perpendicular to the first optical axis.
15. The periscope optical module as claimed in claim 9 , further comprising a liquid lens driving assembly, wherein the first optical element comprises a liquid lens and the liquid lens driving assembly alters a focal length of the liquid lens.
16. The periscope optical module as claimed in claim 15 , wherein the first driving assembly drives the liquid lens driving assembly and the liquid lens to move relative to the second optical element at the same time.
17. The periscope optical module as claimed in claim 9 , further comprising a bottom and a second driving assembly, wherein the bottom corresponds to the second optical element, the second driving assembly is disposed on the bottom, and the second driving assembly drives the second optical element to move or rotate.
18. The periscope optical module as claimed in claim 17 , further comprising a third driving assembly driving the third optical element to move relative to the second optical element.
19. An optical system, comprising:
a periscope optical module as claimed in claim 1 ; and
an optical element driving module;
wherein the optical element driving module and the second optical element are arranged along a direction that is perpendicular to the first optical axis.
20. An optical system, comprising:
a periscope optical module as claimed in claim 1 ; and
an optical element driving module;
wherein the optical element driving module and the second optical element are arranged along a direction that is parallel to the second optical axis.