TW201219821A - Panoramic view photograph system - Google Patents

Abstract

The present invention relates to a panoramic view photograph system. The photograph system includes a panoramic view lens module and an image lens module connected to the panoramic view lens module. The optical axis of the panoramic view lens module is perpendicular to that of the image lens module. The image lens module includes an entrance pupil surface. The panoramic view lens includes, from an object side to an image side, a panoramic view lens, a relay lens, and a reflective assembly. The panoramic view lens includes an annular input surface having a positive diopter power for receiving the emitted light from 360-degree surrounded thereof, an annular reflective surface having a positive diopter power, a circular reflective surface connecting to an object end of the annular input surface and having a negative diopter power, a circular output surface connecting to an image end of the annular reflective surface and having a positive diopter power. The relay lens receives the light from the circular output surface and outputs the light to the reflective assembly. The reflective assembly reflects the entrance pupil surface to the image lens module, to form a panoramic image.

Description

201219821 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to an optical system 'particularly to a panoramic photographing system 〇 [Prior Art] [0002] Previous panoramic photographing systems generally include sequentially arranged along the same optical axis The panoramic lens, the complex optical lens, and the image sensor 'optical lens and the panoramic lens respectively obtain a 360-degree circular field of the front and around the optical lens optical axis. The image sensor is capable of receiving the panoramic lens and imaging.

光线 The light incident on the lens forms a full image: in this light path setting, the light of the panoramic lens must be able to reach the image by the optical lens.

Sr . - ifei' ' . γ'.' Sensors can only obtain scenes in the same optical axis direction and cannot obtain scenes in different optical axis directions. 'There is no way for consumers to meet the various needs of wide-angle images. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a panoramic photographing system that can obtain 〇 panoramic images in different pre-axis directions. 0004 [0004] A panoramic photographing system including a panoramic lens and an imaging lens that connects the panoramic lens. The optical axis of the panoramic lens is perpendicular to the optical axis of the imaging lens. The imaging lens includes an entrance pupil plane including a panoramic lens, a relay lens, and a reflective element in order from the object side to the image side. The panoramic lens includes an annular illuminating surface having a positive refracting power for injecting lateral light from 360 degrees, a ring-shaped reflecting surface having a positive refracting power, and a first circumferential edge at an end of the annular light-incident surface facing the object side. a connected circular reflection surface having a negative refracting power and a circle having a positive refracting force connected to the third circumferential edge of the circular reflection surface facing the image side toward the image side, 099138754 Form No. 1010101, Page 5 / Total 16 Page 0992067532-0 201219821 Form a glossy surface. The relay lens receives light emitted from the circular light exiting surface and exits to a reflecting element. The reflecting element reflects the received light to an entrance pupil surface of the imaging lens and forms a panoramic image from the imaging lens. [0007] [0007] [0007] 099138754 Compared to the prior art, the panoramic photographing system provided by the present invention reduces the optical axis of the panoramic lens and the imaging lens without limiting the optical axis of the imaging lens by providing a reflective element in the panoramic lens. The thickness of the panoramic shooting system can simultaneously obtain panoramic images in different optical axis directions to meet the needs of different consumers. [Embodiment] As shown in Fig. 1, an embodiment of the present invention provides a panoramic photographing system including a panoramic lens 110 and an imaging lens 120 connected to the panoramic lens u〇. In the embodiment, the panoramic shooting system 100 is used in a camera (not shown), the imaging lens 120 is disposed in the camera, the panoramic lens 110 is externally mounted on the camera, and the optical axis of the panoramic lens 11 is :: : ; .... :丨. ;: ... Like the optical axis of the lens 120 is perpendicular to each other? It can be understood that the panoramic photographing system 100 can also be used in a mobile phone or a camera having a photographing function. The imaging lens 120 includes a plurality of imaging mirrors and an image sensor from the object side to the image side. The imaging lens is formed with an entrance pupil 121. The image sensor is formed with an imaging surface 123. Light entering the pupil surface 121 can reach the imaging surface 123 and be shaped on the image sensor. In this embodiment, Oi is the optical sleeve of the imaging lens 120, and the / rrT) Charge sensor can be a charge coupled device image sensor.

Coupled Device) or Complementary Metal Oxide Semiconductor Image Sensing / Timer. 1 Qein i con- (CMOS, Complementary Metal 〇xiae 0992067532-0 Form No. A〇l〇l Page 6 of 16201219821 [0008] And other necessary control elements not shown in the figure. The panoramic lens 11 includes, in order from the object side to the image side, a panoramic lens 1 〇, a relay lens 12, and a reflective element 14. In the present embodiment, 02 is the optical axis of the panoramic lens 110, and 02 and 01 are at an angle of 90 degrees. [0009] The panoramic lens 1 is formed of optical glass or plastic. In this embodiment, the panoramic lens 10 is a plastic lens. The geometric axis of symmetry of the panoramic lens 1 is coaxial with the optical axis 02 of the panoramic lens 110. The panoramic lens 1 includes an annular light entrance surface $, a circular reflection surface $, a circular reflection surface [0010], and a circular light exit surface 'e. _ _ . The annular entrance surface & is an approximately circular stern side of the stern, which is rotationally symmetrical about the optical axis 02 of the panoramic lens 110. The annular light incident surface includes a first circumferential edge 101 facing the object side and a second circumferential edge 102 facing the image side, the diameter of the first circumferential edge 101 being smaller than the diameter of the second circumferential edge 102, and the second circumferential edge 1〇 The distance between each point on 2 and the corresponding point on the first circumferential edge 101 is equal. Referring to the incident direction of the light, the annular light incident surface is a table 1 having a positive refractive power, which is convexly mirrored toward the object side along the optical axis 02, and a light of 360 degrees around the annular light incident surface is projected into the annular shape. The glossy surface is above and thus enters the panoramic lens 10 of [0011] 099138754. In this embodiment, the panoramic lens 1 can receive from -10 along a 360 degree circumference. To 40. The angle of the scene is light. The annular reflecting surface ^^ is also rotated about the optical axis 〇2 of the panoramic lens 11〇. Form No. A0101 Page 7/16 pages 0992067532-0 201219821. The annular reflecting surface 7 includes a third circumferential edge 103 at one end of the annular reflecting surface e facing the image side, and a fourth circumferential edge 104 at the end of the annular reflecting surface facing the object side, the third circumferential edge 103 The diameter is smaller than the diameter of the fourth circumferential edge 104, the fourth circumferential edge 104 is substantially equal to the diameter of the second circumferential edge 102, and the distance between each point on the third circumferential edge 103 and the corresponding point on the fourth circumferential edge 104 All are equal. Referring to the incident direction of the light, the annular reflecting surface y is a surface having a positive refracting bulge which is convexly mirrored toward the image side along the optical axis 02. The circular reflecting surface j is plated with a reflecting film to reflect the imaged light refracted by the annular incident surface j onto the circular reflecting surface S3. [0012] The edge of the circular reflecting surface α is connected to the first circumferential edge 101 of the annular light incident surface e. The optical axis 02 passes through the geometrically symmetrical center of the circular reflecting surface. Referring to the direction of the incident light, the circular reflecting surface S is a surface having a negative refracting power which is concavely mirrored toward the image side along the optical axis 02. The circular reflecting surface e is also plated with a reflective film & to further reverse the imaged light reflected from the annular reflecting surface j to the circular light emitting surface 099138754 Form No. A0101 Page 8 of 16 Page 0992067532-0 201219821 [0013] The edge of the circular illuminating surface factory is connected to the third circumferential edge 103 of the annular reflecting surface j. The optical axis 〇 2 passes through the geometrically symmetrical center of the circular illuminating surface. Referring to the direction of the incident light, the circular light-emitting surface y is a surface having a positive refracting bulge along the optical axis 〇2 toward the image side in a convex mirror shape to reflect the image reflected by the circular reflecting surface C. The front line refracts the panoramic lens 10 〇 ◎ ◎ [0014] the fourth circumferential edge 1 〇 4 of the annular reflecting surface ^ and the second circumferential edge 10 of the ring step 2 > 八光面 & They are connected by a connecting surface 105 which is in the form of a flat ring. The diameter of the connecting face 105 is greater than the diameter of the first circumferential edge 102 or the fourth circumferential edge 104. [0015] The relay lens 12 is a positive diopter lens, which includes a light-incident surface Qi near the object side and a light-emitting surface C near the image side, and the divergent center and the face are negative Ο diopter surface. The illuminating surface Ρ is a positive diopter surface. The cup, ώβ, at least one surface of the relay lens 12 is aspherical. The relay lens 12 is used to converge the imaging light emitted from the panoramic lens 10 toward the optical axis 02. In the embodiment, the relay lens 12 is a plastic lens to reduce cost and reduce. quality. [0016] The reflective element 14 is a plane mirror or a reflective prism. In this embodiment, the reflective surface of the reflective element 14 forms an angle of 45 degrees with the optical axis 02 of the panoramic lens 110 and the optical axis 02 of the panoramic lens 110, and the reflection is 099138754. Form number Α 0101 page 9 / 16 pages 〇 992〇67532~〇201219821 The piece 14 can reflect all the light rays emitted from the light exit surface p of the relay lens 12. It can be understood that the angle between the reflection element 14 and the optical axis 01 of the imaging lens 120 and the optical axis 02 of the panoramic lens 110 can be arbitrarily set, for example, 30 degrees or 60 degrees or the like. [0017] the imaging ray is refracted into the interior of the panoramic lens 10 by any point on the annular entrance surface j, and then reflected on the annular reflection surface 7, and the light reflected from the annular reflection surface y passes through the circle. The reflective surface g is again reflected to the circular light-emitting surface J, and is emitted from the circular light-emitting surface J to the relay lens 12, and the concentrated light is reflected by the reflective element 14 and enters the imaging lens. 120 forms a panoramic image. The 360-degree panoramic landscape 11 captured by the panoramic lens 10 is imaged on the imaging surface 123 after passing through the relay lens 12 and the entrance pupil 121, and the image sensor converts the formed panoramic image into a corresponding electrical signal. And it is displayed by various display devices (not shown) such as liquid crystal and CRT. [0018] The panoramic lens 10 and the relay lens 12 in the panoramic imaging system 100 will be described in further detail below with reference to the accompanying drawings. Where R is the radius of curvature of the corresponding surface, D is the on-axis distance from the corresponding surface to the latter surface (image side) (the length of the optical axis of the two surfaces), and Nd is the corresponding refractive index of the lens 5 V d Abbe number of the lens surface. [0019] Table 1 [0020] Optical surface R (mm) D (ram) Nd Vd 099138754 Form number A0101 Page 10 / Total 16 page 0992067532-0 201219821 ------ 13.21 10. 3 1.5311 55. 75 ~ 7. 56 -9 — —— -3.2 8.1 — 55. 75 ~----~_ ------ -10. 11 -4. 87 6. 48 2. 501 1.5311 -3. 92 2. 51 - In the present embodiment, each optics of the panoramic lens 10 and the relay lens 12

[0023] The G surface is aspherical. _] When the panoramic lens 10 and the relay lens 12 adopt an aspherical optical surface, the aspherical operation formula used is as follows: [0022] Z, where Z is a yttrium at a height y along the optical axis direction, with a surface apex As the reference displacement value from the optical axis, R is the radius of curvature, y is the lens height, k is the conical constant (Coin Constant), A4 is the fourth order aspherical coefficient (4th order Aspherical Coefficient), A6 is six times the non-spherical coefficient 6th order Aspherical Coefficient. The aspherical coefficient tables of the panoramic lens 10 and the relay lens 12 are as follows: [0024] Table 2 1 +

R y (1 + y

Ay+ [0025] 099138754 Optical surface K A4 A6 0. 35 0 0 -2.686 -7.14478 E- 0 Form No. A0101 No. 11 1 / Total 16 Page 0992067532-0 201219821 04 -14.778 -7.76933 E- 0 04 -100 2.329132 E- 0 03 — -2.71740 E- -2.00099 E-003 004 —— -4.58202 E- 2.549446 E-003 005 The panoramic photographing system 100 provided by the present invention provides the panoramic lens 110 by providing the reflective element 14 in the panoramic lens 110. The optical axes 01, 02 of the imaging lens 120 are perpendicular to each other, which reduces the thickness of the panoramic imaging system 100, and can obtain panoramic images in different optical axis directions to meet the needs of different consumers. In addition, those skilled in the art can make other changes in the spirit of the present invention. Of course, the changes made in accordance with the spirit of the present invention should be included in the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS [0027] FIG. 1 is a schematic diagram showing an optical path structure of a panoramic photographing system according to an embodiment of the present invention. [Main Component Symbol Description] [0028] Panoramic Shooting System 1〇〇 [0029] Panoramic Lens 10 [0030] Relay Lens 12 Form No. A0101 Page 12 of 16 099138754 0992067532-0 201219821

[0031] Reflecting Element 14 [0032] First circumferential edge 101 [0033] Third circumferential edge 102 [0034] Fourth circumferential edge 103 [0035] Fourth circumferential edge 104 [0036] Connection surface 105 [0037] Panoramic lens 110 Imaging lens 120 [0040] imaging plane 123 [0040] imaging plane 123 [0041] annular entrance surface [0042] !:; f | f annular reflection surface ' : ά : 丨 ' έ . ί : f ' , . . . -V -iii'V =-/.! ' . i · A i;; ...: :, [0043] Circular reflecting surface [0044] Circular light surface & [0045] Light entering Face A [0046] Light exit surface [0047] Optical axis 01 ' 02 Form number A0101 Page 13 / Total 16 pages 099138754 0992067532-0

Claims (1)

9 201219821 VII. Patent application scope: 1. A panoramic photographing system comprising a panoramic lens and an imaging lens connected to the panoramic lens, the optical axis of the panoramic lens being perpendicular to the optical axis of the imaging lens, the imaging lens comprising an entrance pupil surface, The panoramic lens includes, in order from the object side to the image side, a panoramic lens, a relay lens, and a reflective element, and the panoramic lens includes a circular illuminating surface having positive refracting power for injecting lateral light from 360 degrees of the entire circumference, and having a circular refracting annular reflecting surface, a circular reflecting surface having a negative refracting power connected to a first circumferential edge of the annular light incident surface toward the object side, and a third circumferential edge at the end of the annular reflecting surface facing the image side a connected circular illuminating surface having a positive refracting power, the relay lens receives the light emitted from the circular illuminating surface and exits to the reflective element, and the reflective element reflects the received light to the entrance surface of the imaging lens, and A panoramic image is formed by the imaging lens. 2. The panoramic photographing system of claim 1, wherein: the imaging lens is fixedly disposed with respect to the panoramic lens. 3. The panoramic photographing system of claim 1, wherein: the annular light incident surface further comprises a second circumferential edge adjacent to the image side, each point on the second circumferential edge and the first circumferential edge The distance between the corresponding points on the upper side is equal, the diameter of the first circumferential edge is smaller than the diameter of the second circumferential edge; the annular reflective surface further includes a fourth circumferential edge near the object side, and each point on the third circumferential edge The distance between corresponding points on the fourth circumferential edge is equal, the diameter of the third circumferential edge is smaller than the diameter of the fourth circumferential edge, and the second circumferential edge and the fourth circumferential edge are The planar annular connecting faces are connected. 4. The panoramic photographing system of claim 1, wherein: the 099138754 form number A0101 page 14/16 pages 0992067532-0 201219821 the annular light entrance surface bulges toward the object side along the optical axis of the panoramic lens The annular reflecting surface bulges toward the image side along the optical axis of the panoramic lens, the circular reflecting surface bulging toward the image side along the optical axis of the panoramic lens, the circular emitting surface being slid toward the image side along the optical axis of the panoramic lens Start. 5. The panoramic photographing system of claim 1, wherein: the circular reflecting surface and the annular reflecting surface are plated with a reflective film. 6. The panoramic photographing system of claim 1, wherein: the panoramic lens is a plastic lens, and the relay lens is a plastic lens. 7. The panoramic photographing system of claim 1, wherein: the 中继 relay lens is a positive diopter lens. 8. The panoramic photographing system of claim 7, wherein: the relay lens comprises a light incident surface near the object side and a light exit surface near the image side, wherein the light incident surface is a negative diopter surface. The smooth surface is described as a positive diopter surface. 9. The panoramic photographing system of claim 1, wherein: at least one side of the relay lens is aspherical. 10. The panoramic photographing system of claim 1, wherein: the reflective element is a plane mirror or a reflective prism. 099138754 Form number Α0101 Page 15 of 16 0992067532-0