CN204517873U - A kind of mobile phone full shot - Google Patents

Abstract

The utility model discloses a mobile phone panoramic lens. Along the light incident direction, the mobile phone panoramic lens sequentially comprises: a first reflector, a first correction lens, a second reflector and a second correction lens; the first reflector , adapted to reflect the incident light of the external scene in the range of 360 degrees into the first correction lens; the first correction lens is suitable for correcting the direction of the reflected light of the first mirror, and the out onto the second reflector; the second reflector is adapted to reflect the light incident on it into the second correction lens; the second correction lens is adapted to correct the second The direction of the reflected light of the reflector makes the outgoing light enter the camera of the mobile phone in a manner of approximately parallel light. The technical solution provided by the utility model provides users with a more convenient, reliable and effective panoramic shooting experience, can obtain more perfect shooting effects, and meets the needs of users.

Description

mobile phone panoramic lens

technical field

The utility model relates to the field of mobile phone lenses, in particular to a mobile phone panoramic lens.

Background technique

With the continuous development of digital cameras, the functions of built-in cameras in mobile phones are becoming more and more perfect, and users are constantly pursuing more humanized mobile phone shooting functions. Among them, panoramic shooting, a richer and more personalized way of expressing shooting, is one of the development directions of built-in cameras in mobile phones.

Under normal circumstances, the camera of a mobile phone can only shoot the scene within the field of view of tens of degrees in front, and cannot realize wide-angle or even panoramic shooting. In the prior art, the mobile phone panorama shooting is often realized through the following schemes:

Solution 1, the user manually rotates the mobile phone to shoot, and the multiple images obtained through software processing are combined into a panoramic image; the panoramic image captured by this solution is often deformed due to camera shake. Solution 2, put the mobile phone on a base, and the base automatically rotates the mobile phone to take pictures, and then obtains a panoramic image through software processing; this solution is affected by the rotation time and cannot achieve instant panoramic capture. Solution 3 is to install an auxiliary wide-angle lens in front of the camera of the mobile phone to increase the shooting frame; however, this solution does not really realize the panoramic shooting of the mobile phone.

Utility model content

In view of the above problems, the utility model provides a mobile phone panoramic lens to solve the above problems or at least partly solve the above problems.

The utility model provides a mobile phone panoramic lens. Along the light incident direction, the mobile phone panoramic lens sequentially includes: a first reflector, a first correction lens, a second reflector and a second correction lens;

The first reflector is adapted to reflect the incident light of the external scene within a range of 360 degrees into the first correction lens;

The first correction lens is adapted to correct the direction of the reflected light of the first reflector, and output the corrected light to the second reflector;

the second mirror adapted to reflect light incident thereon into the second correction lens;

The second correction lens is suitable for correcting the direction of the light reflected by the second reflector, so that the outgoing light enters the camera of the mobile phone in a manner of approximately parallel light.

Optionally, the first reflector includes: a first reflective surface;

The surface type of the first reflective surface is: a rotationally symmetrical curved surface obtained by rotating the meridional section curve of a spherical or aspheric surface by 360 degrees around the central axis.

Optionally, the first correction lens sequentially includes along the light incident direction: a first surface and a second surface;

the first surface is a plane;

The surface type of the second surface is spherical or aspherical; or, the surface type of the second surface is a rotationally symmetrical curved surface obtained by rotating a meridional section curve of a spherical or aspheric surface with a certain inclination and eccentricity by 360 degrees around the central axis .

Optionally, the second reflector includes: a second reflective surface;

The surface type of the second reflective surface is plane.

Optionally, the second correction lens sequentially includes along the light incident direction: a third surface and a fourth surface;

The surface type of the third surface is spherical or aspherical; or, the surface type of the third surface is a rotationally symmetrical curved surface obtained by rotating a meridional section curve of a spherical or aspheric surface with a certain inclination and eccentricity by 360 degrees around the central axis ;

The surface type of the fourth surface is plane.

Optionally, the first correction lens has a negative optical power; the second correction lens has a positive optical power.

Optionally, the ranges of the refractive index and Abbe number of the first correction lens are: 1.58<n1<1.64, 23<v1<30;

The ranges of the refractive index and the Abbe number of the second correction lens are: 1.49<n2<1.54, 52<v2<56.

Optionally, the first correction lens adopts Polycarb or OKP4 optical plastic;

The second correction lens is made of PMMA or 480R optical plastic.

Optionally, the mobile phone panoramic lens further includes: an aperture;

The diaphragm is placed on the light exit side of the second correcting lens, and is suitable for limiting the range of the imaging light beam.

As can be seen from the above, compared with the prior art, the mobile phone panoramic lens provided by the utility model has the following beneficial effects: 1. It can realize panoramic shooting of the inner and outer scenes within a 360-degree range. 2. When taking panoramic shots, there is no need to artificially or mechanically rotate the mobile phone, which avoids the deformation caused by the shaking of the mobile phone. 3. On the photosensitive film of the mobile phone camera, the external scene light within the range of 360 degrees is imaged at one time, without time delay, and the instant panorama capture can be realized. 4. The light entering the mobile phone camera is approximately parallel light, which is in line with the original design intention of the mobile phone camera and further improves the imaging quality. Based on the above characteristics, the mobile phone panoramic lens provides users with a more convenient, reliable and effective shooting experience, can obtain more perfect shooting effects, and meets the needs of users.

Description of drawings

Fig. 1 shows a schematic diagram of a mobile phone panoramic lens according to an embodiment of the present invention;

Fig. 2 shows a schematic diagram of a first reflector according to an embodiment of the present invention;

Fig. 3A shows a schematic diagram of a first correction lens according to an embodiment of the present invention;

Fig. 3B shows a schematic diagram of a first correction lens according to another embodiment of the present invention;

Fig. 4 shows a schematic diagram of a second correction lens according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 shows a schematic diagram of a mobile phone panoramic lens according to an embodiment of the present invention, specifically, a schematic diagram of a meridian section of a mobile phone panoramic lens. As shown in Figure 1, the dotted line represents the central axis of the mobile phone panoramic lens (the dotted lines in other drawings all represent the central axis, and will not be described in detail below), because the optical path of the mobile phone panoramic lens is symmetrically distributed about the central axis, in order to make the embodiment The description is more concise and clear, and this embodiment only uses the optical path on the left side of the central axis shown in FIG. 1 as an example for illustration.

As shown in FIG. 1 , along the light incident direction, the mobile phone panoramic lens sequentially includes: a first reflector 110 , a first correction lens 120 , a second reflector 130 , a second correction lens 140 and an aperture 150 .

Wherein, the first reflector 110 is adapted to reflect the incident light of the external scene within a range of 360 degrees into the first correction lens 120 . Fig. 2 shows a schematic diagram of a first reflector according to an embodiment of the present invention. As shown in Fig. 2, the first reflector 110 has a first reflective surface M1, and in this embodiment, the first reflective surface The surface type is: a rotationally symmetrical surface obtained by rotating the meridional section curve of the ellipsoid 360 degrees around the central axis. In other embodiments of the present utility model, the surface type of the first reflective surface M1 may be: a rotationally symmetrical curved surface obtained by rotating the meridional section curve of a spherical or aspheric surface 360 degrees around the central axis, wherein the spherical or aspherical surface may be Has a certain inclination and eccentricity.

The first correction lens 120 is adapted to correct the direction of the light reflected by the first reflector 110 and output the corrected light to the second reflector 130 . FIG. 3A shows a schematic diagram of a first correction lens according to one embodiment of the present invention, and FIG. 3B shows a schematic diagram of a first correction lens according to another embodiment of the present invention. As shown in FIGS. 3A-3B , the first correction lens 120 has a first surface S1 and a second surface S2 . The first surface S1 is located on the light incident side, and its surface type is flat, which can play the role of dust protection; the second surface S2 is located on the light exit side, and the surface type of its effective part can be spherical or aspherical, or it can be A spherical or aspheric meridional section curve with a certain inclination and eccentricity is a rotationally symmetrical surface obtained by rotating 360 degrees around the central axis. In the embodiment shown in Figure 3A, the surface type of the second surface S2 is an aspheric surface; in the embodiment shown in Figure 3B, the surface type of the second surface S2 is: a meridional section curve with a certain eccentric aspheric surface Rotationally symmetrical surface obtained by rotating 360 degrees around the central axis.

The second mirror 130 is adapted to reflect light incident thereon into the second correction lens 140 . As shown in FIG. 1 , in this embodiment, the second reflector 130 has a second reflective surface M2 , which is flat. After being reflected by the second reflector 130 , the direction of the light path is bent, and the range of the light beam becomes smaller.

The second correcting lens 140 is adapted to correct the direction of the reflected light of the second mirror 130 . Fig. 4 shows a schematic diagram of a second correction lens according to an embodiment of the present invention. As shown in FIG. 4, the second correction lens 140 has a third surface S3 and a fourth surface S4. The third surface S3 is located on the light incident side, and the surface type of its effective part can be spherical or aspherical, or it can be a spherical or aspheric surface with a certain inclination and eccentricity. The meridian section curve rotates 360 degrees around the central axis to obtain rotational symmetry. Curved surface; the fourth surface S4 is located at the light emitting side, and its surface type is flat, which can also play the role of dustproof protection. In the embodiment shown in FIG. 4 , the surface type of the third surface S3 is aspherical.

The above-mentioned first correction lens 120 and second correction lens 140 are respectively made of two materials with different dispersion capabilities, and the optical powers of the first correction lens 120 and the second correction lens 140 are different. The two work together to offset the chromatic aberration introduced by the use of refraction elements in the optical path, and can complete the correction of the optical path in the mobile phone's panoramic lens, so that the outgoing light finally enters the aperture 150 in an approximately parallel light manner, and the aperture 150 further limits the range of the imaging beam. In one embodiment of the present utility model, the effective part of the first correcting lens 120 has negative optical power, adopts the optical plastics such as Polycarb or OKP4 type to make, and its refractive index and Abbe's number range are respectively: 1.58＜ n1<1.64, 23<v1<30; the effective part of the second correction lens 140 has a positive refractive power, and is made of optical plastic such as PMMA or 480R, and its refractive index and Abbe number range are respectively: 1.49< n2<1.54, 52<v2<56.

As can be seen from the above, in the embodiment shown in FIG. 1 , under the mutual cooperation of various optical elements, the working principle of the mobile phone panoramic lens is: the external scene incident light in the range of 360 degrees is reflected by the first reflector 110 sequentially, and the first After correction by the correction lens 120 , further reflection by the second mirror 130 and further correction by the second correction lens 140 , it enters the diaphragm 150 in a manner of approximately parallel light. When the user places the camera of the mobile phone at the position of the aperture 150, the optical axis of the camera of the mobile phone is consistent with the central axis of the panoramic lens of the mobile phone, and the one-time shooting of the external scene within the range of 360 degrees can be realized without manually or mechanically rotating the mobile phone , to get a higher quality panoramic image.

Due to the central axis symmetry of the optical path distribution of the mobile phone panoramic lens, it can be seen that the panoramic image captured by the mobile phone camera presents a ring shape before processing, that is, the external incident light with the largest positive field of view is imaged on the inner side of the ring, with External incident light with a negative maximum field of view is imaged outside the ring. For this reason, the image processing software will automatically perform image processing after the mobile phone camera has finished shooting, and present a high-quality panoramic image with normal size and shape to the user. Among them, in order to ensure that the edge data of the forward viewing angle of the image will not be lost too much, it is necessary to avoid the incident light of the external scene with the positive viewing angle overlapping each other on the inner side of the ring. Therefore, in an embodiment of the present invention, further Adjust the optical elements of the mobile phone's panoramic lens so that when the external incident light with a positive field of view finally enters the mobile phone camera, there is a certain angle with the optical axis of the mobile phone camera.

Table 1 is a structural parameter table of a mobile phone panoramic lens according to an embodiment of the present invention, which respectively lists: optical elements (Component) and their optical surfaces (Surface) numbered sequentially along the light incident direction, followed by: the first The first reflective surface M1 of a mirror 110; the first surface S1 and the second surface S2 of the first correction lens 120; the second reflective surface M2 of the second reflector 130; the third surface S3 and the second correction lens 140 the fourth surface S4 ; and, the stop 150 .

Table 1

As shown in Table 1, the radius (R) and conic coefficient (Conic) of each optical surface on the central axis are shown; the thickness between each optical surface and the adjacent next optical surface on the central axis along the light incident direction (T); and the material (M) of each optical component (Component). Wherein, the thickness (T) between the fourth surface S4 and the diaphragm 150 is marked as x, indicating that the distance between the two is adjustable. According to the aperture size and position combination of the aperture, the mobile phone is matched to realize the panoramic shooting of the mobile phone.

To sum up, compared with the prior art, the mobile phone panoramic lens provided by the present invention has the following beneficial effects: 1. It can realize the panoramic shooting of the inner and outer scene in the range of 360 degrees. 2. When taking panoramic shots, there is no need to artificially or mechanically rotate the mobile phone, which avoids the deformation caused by the shaking of the mobile phone. 3. On the photosensitive film of the mobile phone camera, the external scene light within the range of 360 degrees is imaged at one time, without time delay, and the instant panorama capture can be realized. 4. Two correction lenses with different dispersion capabilities are used to avoid the introduction of chromatic aberration in the optical path. 5. The plastic material with light weight, low price and easy processing is adopted to further reduce the production cost. 6. The light entering the mobile phone camera is approximately parallel light, which is in line with the original design intention of the mobile phone camera and further improves the imaging quality. Based on the above characteristics, the mobile phone panoramic lens provides users with a more convenient, reliable and effective shooting experience, can obtain more perfect shooting effects, and meets the needs of users.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. All modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model are included in the protection scope of the present utility model.

Claims (9)

1. a mobile phone full shot, is characterized in that, along light direction, this mobile phone full shot comprises successively: the first speculum, the first correcting lens, the second speculum and the second correcting lens;

Described first speculum, is suitable for the outdoor scene reflected incident light within the scope of 360 degree to enter in described first correcting lens;

Described first correcting lens, is suitable for the direction of the reverberation correcting described first speculum, and shines on described second speculum by the light after correcting;

Described second speculum, is suitable for the light incided on it reflection to enter in described second correcting lens;

Described second correcting lens, is suitable for the direction of the reverberation correcting described second speculum, makes emergent light enter mobile phone camera in the mode of less parallel light.

2. mobile phone full shot as claimed in claim 1, it is characterized in that, described first speculum comprises: the first reflecting surface;

The face type of described first reflecting surface is: the Rotational Symmetry curved surface that sphere or aspheric meridional section curve obtain around central shaft rotating 360 degrees.

3. mobile phone full shot as claimed in claim 1, it is characterized in that, described first correcting lens comprises successively along light direction: first surface and second surface;

Described first surface is plane;

The face type of described second surface is sphere or aspheric surface; Or the face type of described second surface has necessarily to tilt the Rotational Symmetry curved surface obtained around central shaft rotating 360 degrees with eccentric sphere or aspheric meridional section curve.

4. mobile phone full shot as claimed in claim 1, it is characterized in that, described second speculum comprises: the second reflecting surface;

The face type of described second reflecting surface is plane.

5. mobile phone full shot as claimed in claim 1, it is characterized in that, described second correcting lens comprises successively along light direction: the 3rd surface and the 4th surface;

The face type on described 3rd surface is sphere or aspheric surface; Or the face type on described 3rd surface has necessarily to tilt the Rotational Symmetry curved surface obtained around central shaft rotating 360 degrees with eccentric sphere or aspheric meridional section curve;

The face type on described 4th surface is plane.

6. the mobile phone full shot as described in claim 3 or 5, is characterized in that, described first correcting lens has negative focal power; Described second correcting lens has positive focal power.

7. mobile phone full shot as claimed in claim 6, is characterized in that,

The refractive index of described first correcting lens and Abbe number scope be respectively: 1.58 < n1 < 1.64,23 < v1 < 30;

The refractive index of described second correcting lens and Abbe number scope be respectively: 1.49 < n2 < 1.54,52 < v2 < 56.

8. mobile phone full shot as claimed in claim 7, is characterized in that,

Described first correcting lens adopts the optical plastic of Polycarb or OKP4 model;

Described second correcting lens adopts the optical plastic of PMMA or 480R model.

9. mobile phone full shot as claimed in claim 1, it is characterized in that, this mobile phone full shot comprises further: diaphragm;

Described diaphragm is placed between described second correcting lens and described mobile phone camera, is suitable for the scope limiting imaging beam.