CN211043769U - Lens device - Google Patents
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- CN211043769U CN211043769U CN201921676433.3U CN201921676433U CN211043769U CN 211043769 U CN211043769 U CN 211043769U CN 201921676433 U CN201921676433 U CN 201921676433U CN 211043769 U CN211043769 U CN 211043769U
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Abstract
The utility model relates to a lens device, include: a lens module having an optical axis along a first direction; the light path turning module is used for receiving light rays incident along a second direction and reflecting the light rays to the lens module along a first direction; an imaging module; and a prism module disposed between the lens module and the imaging module and including a first prism unit including: a first surface from which light is incident to the first prism unit; the second surface is opposite to the imaging module, and light rays are totally reflected in the first prism unit and are emitted from the second surface; and a third face.
Description
Technical Field
The utility model relates to a lens device.
Background
Many portable electronic devices are currently provided with a lens apparatus therein. Fig. 1 is a schematic structural diagram of a lens device 100 in the prior art. As shown in fig. 1, the lens device 100 includes an optical path turning module 101, a lens module 102, and an imaging module 103, wherein the lens module 102 includes a plurality of lens units (not shown) and has an optical axis along a first direction X. The optical path turning module 101, the lens module 102, and the imaging module 103 are arranged along a first direction X. The light is incident to the light path turning module 101 along the second direction Y, reflected by the light path turning module 101 and then incident to the lens module 102 along the first direction X, and then reaches the imaging module 103 along the first direction X and is imaged. Wherein the second direction Y is perpendicular to the first direction X.
The lens device 100 has a drawback in that the optical path turning module 101, the lens module 102, and the imaging module 103 are arranged along the first direction X, and as the zoom ratio of the lens device 100 is increased, the Effective Focal length (EF L, Effective Focal length L ength) of the lens device is increased, which results in the length of the lens device 100 being increased, and thus a great challenge is posed to the limited space inside the portable electronic device.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the present invention is to provide a lens device having a novel layout, in view of the above-mentioned drawbacks of the lens device in the prior art.
The utility model provides a technical scheme that its technical problem adopted is: a lens device is constructed including: a lens module having an optical axis along a first direction; the light path turning module is used for receiving light rays incident along a second direction and reflecting the light rays to the lens module along a first direction; an imaging module; and a prism module disposed between the lens module and the imaging module and including a first prism unit including: a first surface from which light is incident to the first prism unit; the second surface is opposite to the imaging module, and light rays are totally reflected in the first prism unit and are emitted from the second surface; and a third face.
According to the lens device of the present invention, the first surface and the lens module face each other, and the second surface receives light incident from the first surface and reflects the light to the third surface; the third surface receives light reflected from the second surface and reflects the light to the first surface, and the light is reflected on the first surface and then exits from the second surface.
According to camera lens device, the second face orientation the direction slope of lens module sets up, the reflective membrane has been plated on the third face.
According to camera lens device, first face with first direction is perpendicular, just first face is 45 degrees angles with the second face, the second face presss from both sides 67.5 degrees angles with the third, first face presss from both sides 67.5 degrees angles with the third.
According to camera lens device, the prism module still includes second prism unit, second prism unit includes: a fourth surface opposite to the lens module; a fifth surface opposite to the first surface with an air gap therebetween; and a sixth side.
According to the lens device of the present invention, the third surface is coated with a reflective film and is disposed to be inclined toward the lens module, and the third surface receives the light incident from the first surface and reflects the light to the first surface; the light rays are reflected on the first surface and then exit from the second surface.
According to the lens device, the fourth surface with first direction is perpendicular.
According to camera lens device, the second face with the third face is perpendicular, the first face with the second face is 50 degrees angles, the first face with the third face is 40 degrees angles, the fourth face with the fifth face is 30 degrees angles, the fifth face with the sixth is 60 degrees angles.
According to lens device, imaging module includes the imaging element, the imaging element with second face parallel arrangement.
According to lens device, the lens module includes: a lens unit; a lens unit holder; a lens unit main carrier carrying the lens unit; a lens unit sub-carrier for accommodating the lens unit main carrier and connected in the lens unit holder, wherein the lens unit main carrier is movable in at least one of a first direction, a second direction and a third direction relative to the lens unit sub-carrier, and the lens unit sub-carrier is movable in the remaining direction of the first direction, the second direction and the third direction except the at least one direction relative to the lens unit holder; the lens device also comprises a driving piece which drives the lens unit main carrier to move relative to the lens unit auxiliary carrier and drives the lens unit auxiliary carrier to move relative to the lens unit fixing seat.
Implement the utility model discloses a lens device has following beneficial effect: the layout is different from that in the prior art, and the development of electronic equipment can be flexibly adapted.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of a lens device in the prior art;
fig. 2 is a schematic structural diagram of a lens apparatus according to a first embodiment of the present invention;
fig. 3 is an exploded schematic view of a lens apparatus according to a first embodiment of the present invention;
fig. 4 is a schematic optical path diagram of a lens apparatus according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a lens apparatus according to a second embodiment of the present invention;
fig. 6 is an exploded schematic view of a lens apparatus according to a second embodiment of the present invention;
fig. 7 is a plan view of a lens apparatus according to a second embodiment of the present invention;
fig. 8 is a schematic optical path diagram of a lens device according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 2 is a schematic structural diagram of a lens apparatus 200 according to a first embodiment of the present invention; fig. 3 is an exploded schematic view of a lens apparatus 200 according to a first embodiment of the present invention; fig. 4 is a schematic optical path diagram of the lens device 200 according to the first embodiment of the present invention. As shown in fig. 2 to 4, in the first embodiment of the present invention, the lens device 200 includes an optical path turning module 201, a lens module 202, a prism module 203, and an imaging module 204, wherein the lens module 202 includes a plurality of lens units (not shown) and has an optical axis along the first direction X.
The optical path turning module 201, the lens module 202, and the prism module 203 are arranged along the first direction X. The light is incident to the light path turning module 201 along the second direction Y, is reflected by the light path turning module 201, is incident to the lens module 202 along the first direction X, and then reaches the prism module 203 along the first direction X. Wherein the second direction Y is perpendicular to the first direction X.
The light path turning module 201 includes a light path turning unit base 2011, a light path turning unit carrier (not shown) disposed in the light path turning unit base 2011, and a light path turning unit 2012 fixed in the light path turning unit carrier. The optical path turning unit 2012 may be, for example, a prism unit or a mirror, and has a reflecting surface for reflecting the light incident along the second optical axis Y toward the lens module 202 via the reflecting surface.
The lens module 202 includes: a lens unit holder 2021; a lens unit having an optical axis along a first direction X; a lens unit main carrier carrying the lens unit; a lens unit sub-carrier for accommodating the lens unit main carrier and connected in the lens unit holder 2021, wherein the lens unit main carrier is movable in at least one of the first direction X, the second direction Y, and the third direction Z with respect to the lens unit sub-carrier, and the lens unit sub-carrier is movable in the remaining one of the first direction X, the second direction Y, and the third direction Z except the at least one direction with respect to the lens unit holder 2021; the lens module 202 further comprises a drive (not shown) for driving the lens unit main carrier to move relative to the lens unit sub-carrier and the lens unit sub-carrier to move relative to the lens unit holder 2021, thereby achieving focusing in the first direction X and vibration compensation in the second direction Y and the third direction Z. The third direction Z is perpendicular to the first direction X and the second direction Y.
However, the present invention is not limited thereto, and the lens module 202 may only realize focusing in the first direction X and vibration compensation in the second direction Y or the third direction Z. I.e. its vibration compensation may be in one direction only.
The prism module 203 is disposed between the lens module 202 and the imaging module 204, and includes a first prism unit 2031 and a prism unit holder (not shown) that holds the first prism unit 2031. Wherein the first prism unit 2031 includes a first surface 2031a, a second surface 2031b, and a third surface 2031 c. The first prism unit 2031 may be, for example, a triangular prism. The first surface 2031a and the lens module 202 are opposite to each other, and the second surface 2031b and the imaging module 204 are opposite to each other.
The light emitted from the lens module 202 is incident into the first prism unit 2031 through the first surface 2031a, preferably, the first surface 2031a is perpendicular to the first direction X, the light is incident into the first surface 2031a, the second surface 2031b is disposed obliquely toward the lens module 202, the light incident into the first prism unit 2031 is incident onto the second surface 2031b and has been greater than a critical angle on the second surface 2031b so that Total Reflection occurs, the third surface 2031c may be coated with a reflective film, the light reflected by the second surface 2031b is incident onto the third surface 2031c and is reflected on the first surface 1c by the reflective film, the light reflected by the second surface 2031c is incident onto the first surface 2031a and has been greater than the critical angle so that Total Reflection occurs on the first surface 2031a, thereafter, the light reflected by the first surface 2031a is emitted from the second surface 2031b and reaches the imaging module 204 and is imaged by the imaging module 204, preferably, the light reflected by the first surface 2031a does not have a normal Reflection but is reflected by the second surface 2031a, and is refracted by the first surface 2031a medium 2031b so that the light reaches the imaging module 204 and is refracted by the imaging medium 2031b when the reflected light reaches the first surface 2031b, the Reflection medium, the reflected light reaches the reflective medium 2031b, and the light reaches the reflective medium 2031b, the reflective medium snlight forms a, the reflective medium is refracted by the reflective medium 2031b, the reflective medium 2031b, the reflective medium does not reflected light forms a reflected light ray forms a refraction of the reflective medium.
Preferably, the first surface 2031a is perpendicular to the first direction X, the second surface 2031b forms an angle of 45 degrees with the first surface 2031a, the second surface 2031b forms an angle of 67.5 degrees with the third surface 2031c, and the first surface 2031a forms an angle of 67.5 degrees with the third surface 2031c, so as to ensure that the light can travel along the above-mentioned route. However, the present invention is not limited thereto, and other suitable angles may be adopted.
The imaging module 204 includes an imaging unit 2041, and the imaging unit 2041 is disposed in parallel with the second face 2031 b.
Fig. 5 is a schematic structural diagram of a lens device 300 according to a second embodiment of the present invention; fig. 6 is an exploded schematic view of a lens device 300 according to a second embodiment of the present invention; fig. 7 is a plan view of a lens apparatus 300 according to a second embodiment of the present invention; fig. 8 is a schematic optical path diagram of a lens device 300 according to a second embodiment of the present invention. As shown in fig. 5 to 8, in the second embodiment of the present invention, the lens device 300 includes an optical path turning module 301, a lens module 302, a prism module 303, and an imaging module 304, wherein the lens module 302 includes a plurality of lens units (not shown) and has an optical axis along the first direction X.
The optical path turning module 301, the lens module 302, and the prism module 303 are arranged along the first direction X. The light is incident to the light path turning module 301 along the second direction Y, reflected by the light path turning module 301 and then incident to the lens module 302 along the first direction X, and then reaches the prism module 303 along the first direction X. Wherein the second direction Y is perpendicular to the first direction X.
The optical path turning module 301 includes an optical path turning unit base 3011, an optical path turning unit carrier (not shown) disposed in the optical path turning unit base 3011, and an optical path turning unit 3012 fixed in the optical path turning unit carrier. The optical path-turning unit 3012 may be, for example, a prism unit or a mirror, and has a reflection surface for reflecting the light incident along the direction of the second optical axis Y toward the lens module 302 via the reflection surface.
The lens module 302 includes: a lens unit holder 3021; a lens unit having an optical axis along a first direction X; a lens unit main carrier carrying the lens unit; a lens unit sub-carrier for accommodating the lens unit main carrier and connected in the lens unit holder 3021, wherein the lens unit main carrier is movable in at least one of the first direction X, the second direction Y, and the third direction Z with respect to the lens unit sub-carrier, and the lens unit sub-carrier is movable in the remaining one of the first direction X, the second direction Y, and the third direction Z except for the at least one direction with respect to the lens unit holder 3021; the lens module 302 further comprises a driving member (not shown) for driving the lens unit main carrier to move relative to the lens unit sub-carrier and the lens unit sub-carrier to move relative to the lens unit fixing base 3021, thereby realizing focusing in the first direction X and vibration compensation in the second direction Y and the third direction Z. The third direction Z is perpendicular to the first direction X and the second direction Y.
However, the present invention is not limited thereto, and the lens module 302 may only realize focusing in the first direction X and vibration compensation in the second direction Y or the third direction Z. I.e. its vibration compensation may be in one direction only.
The prism module 303 includes a first prism unit 3031, a second prism unit 3032, and a prism unit holder (not shown) that fixes the first prism unit 3031 and the second prism unit 3032. The first prism unit 3031 includes a first surface 3031a, a second surface 3031b, and a third surface 3031 c. The second prism unit 3032 includes a fourth face 3032a, a fifth face 3032b, and a sixth face. The first and second prism units 3031 and 3032 may be, for example, triangular prisms.
Wherein the fourth surface 3032a and the lens module 302 are opposite to each other, and the fifth surface 3032b and the first surface 3031a are parallel and opposite to each other with an air gap, which may be 0.01 mm. The second face 3031b and the imaging module 304 are opposite to each other.
The light emitted from the lens module 302 is incident into the second prism unit 3032 through the fourth surface 3032a and is emitted from the fifth surface 3032b, then, the light emitted from the fifth surface 3032b is incident into the first prism unit 3031 from the first surface 3031a after passing through the air gap, the third surface 3031c is obliquely arranged towards the direction of the lens module 302 and can be coated with a reflecting film, the light incident into the first prism unit 3031 is incident onto the third surface 3031c and is reflected on the third surface 3031c due to the reflecting film, the light reflected by the third surface 3031c is incident onto the first surface 3031a and is greater than the critical angle, so that total reflection occurs on the first surface 3031a, after the light reflected by the first surface 3031a exits from the second surface 3031b, reaches the imaging module 304, and is imaged by the imaging module 304, wherein the first surface 3031a does not penetrate into the imaging module 304 according to the Snell's law (L aw), when the light propagates from one kind of light but from another kind of medium, the medium having a different refractive index, the light does not propagate through the first surface 3031b, so that the light is reflected by the primary reflection medium, and the primary reflection medium such that the light does not pass through the primary reflection medium, so that the primary reflection occurs, so that the primary reflection occurs when the primary reflection occurs, when the primary reflection occurs, when the primary reflection occurs, the secondary reflection occurs, when the secondary reflection occurs.
Preferably, the fourth face 3032a is perpendicular to the first direction X, and the second face 3031b is perpendicular to the third face 3031 c. The first face 3031a may be at an angle of, for example, 50 degrees to the second face 3031b, the first face 3031a may be at an angle of, for example, 40 degrees to the third face 3031c, the fourth face 3032a may be at an angle of, for example, 30 degrees to the fifth face 3032b, and the fifth face 3032b may be at an angle of, for example, 60 degrees to the sixth face. However, the present invention is not limited thereto, and other suitable angles may be adopted.
The imaging module 304 includes an imaging unit 3041, and the imaging unit 3041 is arranged in parallel with the second face 3031 b.
The utility model discloses a lens device have with the different overall arrangement among the prior art, can adapt to electronic equipment's development more in a flexible way.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A lens apparatus, comprising:
a lens module having an optical axis along a first direction;
the light path turning module is used for receiving light rays incident along a second direction and reflecting the light rays to the lens module along a first direction;
an imaging module; and
a prism module disposed between the lens module and the imaging module and including a first prism unit including: a first surface from which light is incident to the first prism unit; the second surface is opposite to the imaging module, and light rays are totally reflected in the first prism unit and are emitted from the second surface; and a third face.
2. The lens device according to claim 1, wherein the first face and the lens module are opposed to each other, and the second face receives light incident from the first face and reflects the light to the third face; the third surface receives light reflected from the second surface and reflects the light to the first surface, and the light is reflected on the first surface and then exits from the second surface.
3. The lens device according to claim 2, wherein the second surface is disposed obliquely toward the lens module, and the third surface is coated with a reflective film.
4. The lens device as claimed in claim 2, wherein the first surface is perpendicular to the first direction, the first surface and the second surface form an angle of 45 degrees, the second surface and the third surface form an angle of 67.5 degrees, and the first surface and the third surface form an angle of 67.5 degrees.
5. The lens device according to claim 1, wherein the prism module further includes a second prism unit including: a fourth surface opposite to the lens module; a fifth surface opposite to the first surface with an air gap therebetween; and a sixth side.
6. The lens device according to claim 5, wherein the third surface is coated with a reflective film and is disposed obliquely toward the lens module, the third surface receiving light incident from the first surface and reflecting the light to the first surface; the light rays are reflected on the first surface and then exit from the second surface.
7. The lens device according to claim 6, wherein the fourth face is perpendicular to the first direction.
8. The lens device according to claim 6, wherein the second surface is perpendicular to the third surface, the first surface is at an angle of 50 degrees to the second surface, the first surface is at an angle of 40 degrees to the third surface, the fourth surface is at an angle of 30 degrees to the fifth surface, and the fifth surface is at an angle of 60 degrees to the sixth surface.
9. The lens device according to claim 1, wherein the imaging module includes an imaging unit that is disposed in parallel with the second face.
10. The lens device according to claim 1, wherein the lens module includes: a lens unit; a lens unit holder; a lens unit main carrier carrying the lens unit; a lens unit sub-carrier for accommodating the lens unit main carrier and connected in the lens unit holder, wherein the lens unit main carrier is movable in at least one of a first direction, a second direction and a third direction relative to the lens unit sub-carrier, and the lens unit sub-carrier is movable in the remaining direction of the first direction, the second direction and the third direction except the at least one direction relative to the lens unit holder; the lens device also comprises a driving piece which drives the lens unit main carrier to move relative to the lens unit auxiliary carrier and drives the lens unit auxiliary carrier to move relative to the lens unit fixing seat.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676433.3U CN211043769U (en) | 2019-10-08 | 2019-10-08 | Lens device |
| TW109128237A TWI831997B (en) | 2019-10-08 | 2020-08-19 | Lens device |
| US17/035,977 US11528396B2 (en) | 2019-10-08 | 2020-09-29 | Lens device |
| US17/976,226 US11863854B2 (en) | 2019-10-08 | 2022-10-28 | Lens device capable of operation of multi-magnifications, optical zoom in high magnification, and miniaturization of the lens module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676433.3U CN211043769U (en) | 2019-10-08 | 2019-10-08 | Lens device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211043769U true CN211043769U (en) | 2020-07-17 |
Family
ID=71533911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921676433.3U Active CN211043769U (en) | 2019-10-08 | 2019-10-08 | Lens device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211043769U (en) |
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2019
- 2019-10-08 CN CN201921676433.3U patent/CN211043769U/en active Active
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