CN215773286U - Long focus lens module - Google Patents

Abstract

The application discloses telephoto lens module, telephoto lens module includes organism, first group lens, prism, second group lens and third group lens, first group lens is established on the organism, the prism is established in the organism, the prism has first face, second face and third face, first face and second face mutually perpendicular, the third face becomes angle with first face and second face respectively, the first face of axial perpendicular to of first group lens, the second group lens is established in the organism, the axial perpendicular to second face of second group lens, the third group lens is established in the organism, the axial perpendicular to second face of third group lens, and the second group lens is located between prism and the third group lens. This long-focus lens module of disclosure sets up first group lens through the top at the first face of prism, and first group lens is for advancing the light mouth, and the diameter of first group lens does not receive the restriction of prism and organism, and major diameter can be selected to first group lens, and consequently it is also bigger to advance the light mouth diameter, has reached the effect of big light ring.

Description

Long focus lens module

Technical Field

The present disclosure relates to the field of camera module technology, and more particularly, to a telephoto lens module.

Background

The existing periscope module has the defects that the area of a light receiving surface of the prism is limited due to the limitation of the size of an emergent surface of the prism, namely, a light inlet hole is small, so that the diaphragm of a lens is very small, the problems of poor dim light effect/poor blurring effect and the like are caused, and meanwhile, the value of the diaphragm can be changed is avoided.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiments of the present disclosure provide a telephoto lens module, which includes a first group of lenses disposed above a first surface of a prism, the first group of lenses being light inlets, the diameters of the first group of lenses being not limited by the prism and a body, and the first group of lenses being selectable to have a large diameter, so that the diameter of the light inlets is larger, and a large aperture effect is achieved.

The telephoto lens module according to an embodiment of the present disclosure includes: a body; the first group of lenses are arranged on the machine body; the prism is arranged in the machine body and provided with a first surface, a second surface and a third surface, the first surface and the second surface are perpendicular to each other, the third surface forms an angle with the first surface and the second surface respectively, and the axial direction of the first group of lenses is perpendicular to the first surface; a second group of lenses, wherein the second group of lenses is arranged in the machine body, and the axial direction of the second group of lenses is perpendicular to the second surface; and the third group of lenses are arranged in the machine body, the axial direction of the third group of lenses is perpendicular to the second surface, and the second group of lenses are positioned between the prism and the third group of lenses.

According to this disclosed embodiment's telephoto lens module sets up first group lens through the top of the first face of prism, and first group lens is for advancing the light mouthful, and the diameter of first group lens does not receive the restriction of prism and organism, and major diameter can be selected to first group lens, and consequently it is also bigger to advance the light mouthful diameter, has reached the effect of big light ring.

In some embodiments, the first group of lenses includes a first sub-lens, the first sub-lens is a concave mirror, the first sub-lens is disposed on the body, and an axial direction of the first sub-lens is perpendicular to the first surface.

In some embodiments, the first set of lenses includes a second sub-lens, the second sub-lens is a semi-convex lens, the second sub-lens is disposed on the body, an axial direction of the second sub-lens is perpendicular to the first surface, and the first sub-lens is located between the second sub-lens and the first surface.

In some embodiments, the first set of lenses includes a third sub-lens, the third sub-lens is a convex lens, the third sub-lens is disposed on the body, an axial direction of the third sub-lens is perpendicular to the first surface, and the second sub-lens is located between the third sub-lens and the first sub-lens.

In some embodiments, the axes of the first, second, and third sub-lenses are collinear.

In some embodiments, the cross-sections of the first, second, and third sub-lenses are all circular, and the cross-sectional areas of the first, second, and third sub-lenses are equal.

In some embodiments, the telephoto lens module includes an aperture disposed in the body, the aperture having a through hole, the aperture being located between the second and third lens groups, and an axial direction of the aperture being parallel to an axial direction of the second lens group.

In some embodiments, the aperture includes a first portion and a second portion, the first portion has a first sub-hole, the second portion has a second sub-hole, the first portion is opposite to the second portion, and the first portion and the second portion are movable relative to each other, and the first sub-hole and the second sub-hole are butted to form the through hole.

In some embodiments, the telephoto lens module includes a moving component, the moving component is connected to the third group of lenses, and the moving component drives the third group of lenses to move freely along the axial direction of the third group of lenses.

In some embodiments, the telephoto lens module includes a sensor disposed in the body, and an axial direction of the sensor is parallel to an axial direction of the third group of lenses.

Drawings

Fig. 1 is a schematic diagram illustrating a case where an aperture is large in a telephoto lens module according to an embodiment of the disclosure.

Fig. 2 is a schematic diagram illustrating a case where an aperture stop is small in a telephoto lens module according to an embodiment of the disclosure.

Reference numerals:

the telephoto lens module 100, a first lens group 1, a first sub-lens 11, a second sub-lens 12, a third sub-lens 13, a second lens group 2, a third lens group 3, a prism 4, a first surface 41, a second surface 42, a third surface 43, a diaphragm 5, a first portion 51, a second portion 52, a through hole 53, and a sensor 6.

Detailed Description

Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present disclosure, and should not be construed as limiting the present disclosure.

As shown in fig. 1-2, a telephoto lens module 100 according to an embodiment of the present disclosure includes a body (not shown), a first group of lenses 1, a prism 4, a second group of lenses 2, and a third group of lenses 3.

The first group of lenses 1 are disposed on the machine body, specifically, the machine body may be disposed with a mounting hole, the first group of lenses 1 may be fixed in the mounting hole, the first group of lenses 1 is a light inlet of the telephoto lens module 100, and an external light source is refracted by the first group of lenses 1 and then irradiates the prism 4.

It can be understood that the first group of lenses 1 and the prism 4 are independent from each other, and the first group of lenses 1 is installed on the machine body, therefore, the diameter of the first group of lenses 1 is not limited by the prism 4, i.e. the diameter of the first group of lenses 1 can be larger than the diameter of the first surface of the prism 4, which is beneficial for more light to enter the prism 4.

The prism 4 is arranged in the machine body, the prism 4 is provided with a first surface 41, a second surface 42 and a third surface 43, the first surface 41 is perpendicular to the second surface 42, the third surface 43 forms an angle with the first surface 41 and the second surface 42 respectively, and the axial direction of the first group of lenses 1 is perpendicular to the first surface 41.

Specifically, the prism 4 is substantially a triangular prism, that is, the longitudinal section of the prism 4 is substantially a right triangle, the first face 41 is the upper face of the prism 4, the second face 42 is the right face of the prism 4, and the third face 43 is the left side face of the prism 4.

The second group of lenses 2 is arranged in the machine body, the axial direction of the second group of lenses 2 is perpendicular to the second surface 42, the third group of lenses 3 is arranged in the machine body, the axial direction of the third group of lenses 3 is perpendicular to the second surface 42, and the second group of lenses 2 is positioned between the prism 4 and the third group of lenses 3.

Specifically, the second lens 2 and the third lens 3 are all arranged on the right side of the prism 4, wherein the axial directions of the second lens 2 and the third lens 3 are on the same straight line, and the cross-sectional areas of the second lens 2 and the third lens 3 are equal, so that the incident of more light rays refracted by the prism 4 to the second lens 2 and the third lens 3 is facilitated, and the imaging quality of the telephoto lens module 100 is improved.

In some embodiments, as shown in fig. 1-2, the first set of lenses 1 includes a first sub-lens 11, the first sub-lens 11 is a concave mirror, the first sub-lens 11 is disposed on the machine body, and an axial direction of the first sub-lens 11 is perpendicular to the first surface 41.

It can be understood that the first sub-lens 11 is a concave mirror, and external light can be scattered after passing through the concave mirror, so that more light passing through the first sub-lens 11 can be incident on the first surface 41, and the utilization rate of the first surface 41 is effectively improved.

In some embodiments, as shown in fig. 1-2, the first set of lenses 1 includes a second sub-lens 12, the second sub-lens 12 is a semi-convex lens, the second sub-lens 12 is disposed on the machine body, an axial direction of the second sub-lens 12 is perpendicular to the first surface 41, and the first sub-lens 11 is located between the second sub-lens 12 and the first surface 41.

It can be understood that the upper surface of the second sub-lens 12 is a convex mirror, the lower surface of the second sub-lens 12 is a flat mirror, and the external light is incident from the upper surface of the second sub-lens 12, so that the specific surface area of the upper surface of the second sub-lens 12 is larger, which is beneficial for the second sub-lens 12 to receive more light.

And the lower surface of the second sub-lens 12 is a plane mirror, so that the light emitted from the lower surface of the second sub-lens 12 is substantially parallel to the axial direction of the second sub-lens 12, which is favorable for the light to be perpendicularly incident on the prism 4.

In some embodiments, as shown in fig. 1-2, the first lens group 1 includes a third sub-lens 13, the third sub-lens 13 is a convex lens, the third sub-lens 13 is disposed on the body, an axial direction of the third sub-lens 13 is perpendicular to the first surface 41, and the second sub-lens 12 is located between the third sub-lens 13 and the first sub-lens 11.

It can be understood that the third sub-lens 13 is located at the outermost side of the first group of lenses 1, the external light first enters the third sub-lens 13, and the third sub-lens 13 is a convex lens having a light-gathering effect, which is beneficial to increasing the light-entering amount of the telephoto lens module 100 and effectively increasing the aperture of the lens.

In some embodiments, as shown in fig. 1-2, the axes of the first sub-lens 11, the second sub-lens 12, and the third sub-lens 13 are collinear.

From this, be favorable to external light to pass first sub-lens 11, second sub-lens 12 and third sub-lens 13 in proper order, reduced the loss of light, improved telephoto lens module 100's imaging quality effectively.

In some embodiments, as shown in fig. 1-2, the cross-sections of the first sub-lens 11, the second sub-lens 12, and the third sub-lens 13 are all circular, and the cross-sectional areas of the first sub-lens 11, the second sub-lens 12, and the third sub-lens 13 are equal.

It can be understood that the cross-sectional areas of the first sub-lens 11, the second sub-lens 12 and the third sub-lens 13 are equal, which is beneficial to make the light emitted from the upper lens incident on the lower lens better.

In some embodiments, as shown in fig. 1-2, the telephoto lens module 100 includes a diaphragm 5, the diaphragm 5 is disposed in the body, the diaphragm 5 has a through hole 53, the diaphragm 5 is disposed between the second lens group 2 and the third lens group 3, and an axial direction of the diaphragm 5 is parallel to an axial direction of the second lens group 2.

It can be understood that the aperture 5 is provided with a through hole 53, and the light emitted from the second lens set 2 is irradiated onto the third lens set 3 through the through hole 53, wherein the third lens set 3 is a focusing lens.

In some embodiments, as shown in fig. 1-2, the diaphragm 5 includes a first portion 51 and a second portion 52, the first portion 51 is provided with a first sub-hole, the second portion 52 is provided with a second sub-hole, the first portion 51 and the second portion 52 are oppositely disposed, and the first portion 51 and the second portion 52 can relatively move, and the first sub-hole and the second sub-hole are butted to form a through hole 53.

It will be appreciated that the first portion 51 is symmetrically disposed with respect to the second portion 52, and the first sub-aperture is abutted with the second sub-aperture to form the through-hole 53, when the first portion 51 and the second portion 52 are located at the initial position (as shown in fig. 1), the flow area of the through-hole 53 is maximized.

When the first and second portions 51 and 52 are moved toward each other (as shown in fig. 2), at least portions of the first and second portions 51 and 52 overlap with each other, resulting in a smaller through hole 53, and thus the telephoto lens module 100 can adjust the size of the through hole 53 by moving the first and second portions 51 and 52.

In summary, since the aperture 5 is larger, the adjustable space and meaning of the aperture 5 also exist, and the telephoto lens module 100 according to the embodiment of the disclosure places the aperture 5 at the right side of the second group of lenses 2, so that the adjustable function of the aperture 5 is added without affecting the overall size of the telephoto lens module 100, and the light incident amount can be freely controlled under different conditions of strong light and dark light, thereby obtaining better picture effect.

In some embodiments, the telephoto lens module 100 comprises a moving assembly (not shown) connected to the third group of lenses 3, the moving assembly driving the third group of lenses 3 to move freely along the axial direction thereof.

It can be understood that, the original focusing scheme for driving all the lenses to move together is changed during focusing, and only the third group of lenses 3 is moved, so that the load of the motor is reduced, the power consumption is reduced, and the focusing speed is also increased.

In some embodiments, as shown in fig. 1-2, the telephoto lens module 100 includes a sensor 6, the sensor 6 is disposed in the body, and an axial direction of the sensor 6 is parallel to an axial direction of the third group of lenses 3.

In the description of the present disclosure, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.

Claims (10)

1. A telephoto lens module, comprising:

a body;

the first group of lenses are arranged on the machine body;

the prism is arranged in the machine body and provided with a first surface, a second surface and a third surface, the first surface and the second surface are perpendicular to each other, the third surface forms an angle with the first surface and the second surface respectively, and the axial direction of the first group of lenses is perpendicular to the first surface;

a second group of lenses, wherein the second group of lenses is arranged in the machine body, and the axial direction of the second group of lenses is perpendicular to the second surface;

and the third group of lenses are arranged in the machine body, the axial direction of the third group of lenses is perpendicular to the second surface, and the second group of lenses are positioned between the prism and the third group of lenses.

2. The telephoto lens module according to claim 1, wherein the first group of lenses comprises a first sub-lens, the first sub-lens is a concave mirror, the first sub-lens is disposed on the body, and an axial direction of the first sub-lens is perpendicular to the first surface.

3. The telephoto lens module according to claim 2, wherein the first group of lenses includes a second sub-lens, the second sub-lens is a semi-convex lens, the second sub-lens is disposed on the body, an axial direction of the second sub-lens is perpendicular to the first surface, and the first sub-lens is located between the second sub-lens and the first surface.

4. The telephoto lens module according to claim 3, wherein the first group of lenses includes a third sub-lens, the third sub-lens is a convex lens, the third sub-lens is disposed on the body, an axial direction of the third sub-lens is perpendicular to the first surface, and the second sub-lens is located between the third sub-lens and the first sub-lens.

5. The telephoto lens module according to claim 4, wherein the axes of the first sub-lens, the second sub-lens, and the third sub-lens are on the same straight line.

6. The telephoto lens module according to claim 4, wherein the cross sections of the first sub-lens, the second sub-lens, and the third sub-lens are all circular, and the cross sections of the first sub-lens, the second sub-lens, and the third sub-lens are equal.

7. The telephoto lens module according to claim 1, comprising an aperture provided in the body, the aperture having a through hole, the aperture being located between the second group of lenses and the third group of lenses, an axial direction of the aperture being parallel to an axial direction of the second group of lenses.

8. The telephoto lens module according to claim 7, wherein the aperture comprises a first portion and a second portion, the first portion has a first sub-hole, the second portion has a second sub-hole, the first portion and the second portion are disposed opposite to each other and are movable relative to each other, and the first sub-hole and the second sub-hole are butted to form the through hole.

9. The telephoto lens module according to claim 1, comprising a moving member connected to the third group of lenses, the moving member driving the third group of lenses to move freely in an axial direction thereof.

10. The telephoto lens module according to claim 1, comprising a sensor disposed in the body, an axial direction of the sensor being parallel to an axial direction of the third group of lenses.

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