Aberration-adjustable lens structure, camera and video camera

Abstract

The utility model discloses an aberration-adjustable lens structure, a camera and a video camera. The lens structure is sequentially provided with optical aberration adjusting group glass and an FA adjusting optical lens group from an object side to an image plane side; the optical aberration adjusting group glass is driven by the SA adjusting ring to move and adjust out-of-focus imaging. And the FA adjusting optical lens group is driven by the FA adjusting ring to move so as to adjust the back focus. According to the lens structure, the imaging background blurring style of the lens can be freely adjusted, the back focal distance can be quickly adjusted, and the space is effectively utilized on the premise that the habits of a user are not changed according to the sequence from the object side to the image surface side.

Description

TECHNICAL FIELD

[0001] The utility model belongs to optical device technical field, especially relate to an adjustable aberration lens structure. BACKGROUND

[0002] The optical lens is matched with the camera or the camera, and is used for recording the device of image by optical imaging principle, and the different design styles of optical lens are replaced to realize the different focus effect of still photo or dynamic video, and the existing optical lens still has certain insufficient when using, the imaging focus effect produced by the solidification optical aberration design of each optical lens is fixed. CONTENT OF UTILITY MODEL

[0003] The utility model discloses a kind of adjustable aberration lens structure, and based on the structure, imaging aberration can be conveniently and quickly adjusted, to realize different focus imaging effect.

[0004] To realize the above-mentioned utility model purpose, the utility model takes the following technical solutions:

[0005] Adjustable aberration lens structure, the lens structure is sequentially arranged optical aberration adjustment group glass and FA adjustment optical lens group from object side to image side;

[0006] The optical aberration adjustment group glass is driven to move by SA adjusting ring, and adjusts focus imaging;

[0007] The FA adjustment optical lens group is driven to move by FA adjusting ring, and adjusts back focus.

[0008] Further technology of the utility model:

[0009] Preferably, the inner circle of the SA adjusting ring is provided with an SA curve cylinder, the SA curve cylinder is provided with an SA curve groove, the inner circle of the curve cylinder is in clearance fit with the outer circle of a fixed cylinder, the fixed cylinder is provided with an SA guide groove, a first connecting guide pin is fixed on an SA sliding ring by penetrating the SA curve groove and the SA guide groove, the optical aberration adjustment group glass is installed in the inner circle of the SA sliding ring, the first connecting guide pin is axially slidable in the SA guide groove along the fixed cylinder, and the optical aberration adjustment group glass is driven to move.

[0010] Preferably, the SA curve groove is provided with a slope in the radial direction, and the first connecting guide pin is driven to move forward and backward by the curve groove by rotating the SA curve cylinder.

[0011] Preferably, the FA adjustment ring is provided with an FA curve cylinder, the FA curve cylinder is provided with an FA curve groove, the inner circle of the FA curve cylinder is in clearance fit with the outer circle of the fixed cylinder, the fixed cylinder is provided with an FA guide groove, the connecting guide pin three is fixed on the FA integral sliding ring through the FA curve groove and the FA guide groove, the connecting guide pin three is axially slidable in the FA guide groove, the connecting guide pin three drives the FA integral sliding ring to move, and drives the FA adjustment optical lens group inside the FA integral sliding ring to move.

[0012] Preferably, the FA adjustment optical lens group is mounted on a male threaded part, the male threaded part is provided with a male thread, and the male thread is matched with a female thread of a female threaded part;

[0013] The female threaded part is arranged on the inner circle of the FA integral sliding ring, the connecting guide pin three drives the female threaded part to move forward and backward, and drives the FA adjustment optical lens group to move forward and backward.

[0014] The side wall of the FA integral sliding ring is provided with a guide claw one, the surface of the non-threaded segment of the male threaded part is provided with a guide groove, and the guide claw one is clamped in the guide groove.

[0015] Preferably, the FA curve groove is provided with a slope in the radial direction, and the FA curve cylinder can drive the connecting guide pin three to move forward and backward through the FA curve groove.

[0016] Preferably, the female threaded part is arranged on the inner circle of the FA integral sliding ring, the FA integral sliding ring is provided with a limiting waist groove, the connecting guide pin two passes through the limiting waist groove and is connected with the female threaded part, and the female threaded part is limited to axially move relative to the FA integral sliding ring through the limiting waist groove.

[0017] Preferably, the SA curve cylinder is provided with a guide claw two, the fixed cylinder is provided with a guide claw accommodating waist groove, the female threaded part is provided with an SA linkage guide groove, the guide claw two passes through the guide claw accommodating waist groove and is matched with the SA linkage guide groove, the female threaded part is matched through the limiting waist groove, and the SA curve cylinder can drive the female threaded part to rotate in the radial direction of the waist groove through the guide claw two.

[0018] The utility model also provides a camera, including the adjustable aberration lens structure.

[0019] The utility model also provides a camera, including the adjustable aberration lens structure.

[0020] The utility model has the advantages of:

[0021] The adjustable aberration lens structure provided by the utility model can drive the front and back movement of the optical aberration adjustment group glass by the SA adjusting ring to adjust the imaging style, drive the front and back movement of the FA adjusting optical lens group by the FA adjusting ring to adjust the back focal distance of the optical system, realize the free adjustment of the imaging background blurring style and the quick adjustment of the back focal distance, and the order of the sequence arranged from the object side to the image plane side is effective use of the space without changing the user's habits. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0023] Figure 1 It is shown that the adjustable aberration lens structure assembly drawing is provided according to the utility model embodiment;

[0024] Figure 2 It is shown that the SA adjusting ring and the FA adjusting ring internal structure schematic view are provided according to the utility model embodiment;

[0025] Figure 3 It is shown that the SA adjusting ring and the FA adjusting ring internal structure explosion schematic view are provided according to the utility model embodiment;

[0026] Figure 4 It is shown that the lens structure assembly drawing is provided according to the utility model embodiment;

[0027] In the drawing: 1, focusing ring; 2, aperture ring; 3, SA adjusting ring; 31, SA adjusting ring blocking tooth; 4, FA adjusting ring; 41, FA adjusting ring tooth; 5, SA curve cylinder; 51, SA curve groove; 7, connecting guide nail one; 8, SA sliding ring; 9, optical aberration adjustment group glass; 10, FA curve cylinder; 101, FA curve groove; 11, connecting guide nail two; 12, FA integral sliding ring; 121, limiting waist groove; 13, male threaded part; 131, guide groove; 132, male thread; 14, FA adjusting optical lens group; 16, guide claw one; 17, guide claw two; 18, connecting guide nail three; 19, female threaded part; 191, SA linkage guide groove; 192, female thread; 20, fixed cylinder; 201, SA guide groove; 202, guide claw accommodating waist groove; 203, FA guide groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be further described in detail below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model but not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] As Figures 1-3 Indicated, the adjustable aberration lens structure provided by the embodiment, the lens structure is sequentially provided with optical aberration adjustment group glass and FA adjustment optical mirror group from object side to image plane side.

[0030] Further, the optical aberration adjustment group glass is driven to move through SA adjusting ring, adjusts extrafocal imaging,

[0031] The specific structure is as follows:

[0032] The inner ring of the SA adjusting ring 3 is provided with an SA curve cylinder 5, the SA curve cylinder 5 is provided with an SA curve groove 51, the inner circle of the curve cylinder 5 is gap-fitted with the outer circle of the fixed cylinder 20, the fixed cylinder 20 is provided with an SA guide groove 201, the connecting guide nail one 7 is fixed on the SA sliding ring 8 by passing through the SA curve groove 51 and the SA guide groove 201, the optical aberration adjustment group glass 9 is installed in the inner ring of the SA sliding ring 8, the SA curve groove 51 is provided with a slope in radial direction, and rotating the SA curve cylinder 5 can drive the connecting guide nail one 7 to move forward and backward through the curve groove 51, to drive the optical aberration adjustment group glass to move.

[0033] In the above structure, rotating the SA adjusting ring 3 drives the SA curve cylinder 5 to rotate, the connecting guide nail one 7 in the SA curve groove 51 moves forward and backward through the setting of the slope in radial direction of the SA curve groove 51, and since the connecting guide nail one 7 is fixed on the SA sliding ring 8, the connecting guide nail one 7 moves forward and backward to control the SA sliding ring 8 to move forward and backward, to drive the optical aberration adjustment group glass to move.

[0034] Further, the FA adjustment optical mirror group is driven to move through FA adjusting ring, to adjust back focus. The SA adjusting ring 3 drives the optical aberration adjustment group glass 9 connected thereto to move, to adjust extrafocal imaging.

[0035] The specific structure is as follows:

[0036] The inner ring of the FA adjusting ring 4 is provided with an FA curve cylinder 10, the FA curve cylinder 10 is provided with an FA curve groove 101, the inner circle of the FA curve cylinder 10 is gap-fitted with the outer circle of the fixed cylinder 20, the fixed cylinder 20 is provided with an FA guide groove 203, the connecting guide pin three 18 passes through the FA curve groove 101 and the FA guide groove 203 and is fixed on the FA integral sliding ring 12, the FA curve groove 101 is provided with a slope in the radial direction, and rotating the FA curve cylinder 10 can drive the connecting guide pin three 18 to move forward and backward through the FA curve groove 101. The connecting guide pin three 18 drives the FA integral sliding ring 12 to move.

[0037] In the above structure, rotating the FA adjusting ring 4 drives the FA curve cylinder 10 to rotate, the connecting guide pin three 18 located in the FA curve groove 101 moves forward and backward through the setting of the slope in the radial direction of the FA curve groove 101, and since the connecting guide pin three 18 is fixed on the FA integral sliding ring 12, the connecting guide pin three 18 moves forward and backward to control the FA integral sliding ring 12 to move forward and backward, thereby driving the FA adjusting optical lens group 14 to move forward and backward.

[0038] Further, the FA adjusting optical lens group 14 is installed on the male head threaded part 13, the male head threaded part 13 is provided with a male head thread 132, and the male head thread 132 is assembled with a female head thread 192 provided on the female head threaded part 19;

[0039] The female head threaded part 19 is arranged on the inner ring of the FA integral sliding ring 12, the FA integral sliding ring 12 is provided with a limiting waist groove 121, and the connecting guide pin two 11 passes through the limiting waist groove 121 and is connected with the female head threaded part 19.

[0040] The limiting waist groove 121 limits the axial movement of the female head threaded part 19 relative to the FA integral sliding ring 12 and allows the radial rotation within the range of the waist groove.

[0041] The connecting guide pin three 18 drives the FA integral sliding ring 12 to move forward and backward, the female head threaded part 19 connected with the FA integral sliding ring 12 moves forward and backward, and the FA adjusting optical lens group moves forward and backward.

[0042] The side wall of the FA integral sliding ring 12 is provided with a guide claw one 16, the surface of the non-threaded section of the male head threaded part 13 is provided with a guide groove 131, and the guide claw one 16 is clamped in the guide groove 131.

[0043] The SA adjustment optical scheme needs to be linked with other optical glasses. To this end, the SA curve cylinder 5 is provided with a guide claw 17, the fixed cylinder 20 is provided with a guide claw accommodating waist groove 202, the female head threaded part 19 is provided with an SA linkage guide groove 191, the guide claw 17 passes through the guide claw accommodating waist groove 202 and cooperates with the SA linkage guide groove 191, and the SA curve cylinder 5 can drive the female head threaded part 19 to rotate radially in the waist groove range through the cooperation of the limiting waist groove 121. During SA adjustment, the limiting waist groove 121 limits the axial movement of the female head threaded part 19 relative to the FA integral sliding ring 12, allows radial rotation in the waist groove range, and the female head threaded part 19 only rotates without moving. The male head threaded part 13 connected with the female head threaded part 19 is limited by the guide claw 16, and the female head threaded part 19 rotates cooperatively, which inevitably causes the male head threaded part 13 to move forward and backward, thereby driving the FA to move the optical lens group 14 forward and backward; during FA adjustment, the FA integral sliding ring 12 drives the female head threaded part 19 to move forward and backward.

[0044] It should be noted that the SA adjustment ring 3 is provided with an SA adjustment ring blocking tooth 31 on the outer surface, and the FA adjustment ring 4 is provided with an FA adjustment ring tooth 41 on the outer surface. The SA adjustment ring blocking tooth 31 and the FA adjustment ring tooth 41 are mainly set to increase the friction force and avoid the situation of slipping rotation. In order to facilitate use and beauty, the SA adjustment ring blocking tooth 31 is arranged in the form of a scale on the outer circle of the SA adjustment ring 3, and the FA adjustment ring tooth 41 is arranged in the form of a scale on the outer circle of the FA adjustment ring 4. Not only does it have the above-mentioned anti-slip effect, but more importantly, it can also intuitively understand the angle of rotation.

[0045] The embodiment also provides a camera and a video camera, both of which include the adjustable aberration lens structure, such as Figure 4 , the lens object side is sequentially provided with a focusing ring 1, an aperture ring 2, an SA adjustment ring 3, and an FA adjustment ring 4 from the image plane side; the focusing ring 1 moves the focus by driving the optical focusing group glass connected thereto; the aperture ring 2 adjusts the light aperture by driving the diaphragm connected thereto; it should be noted that the focusing ring 1 and the aperture ring 2 are connected to the optical glass and the diaphragm by a conventional connection method to realize the driving function.

[0046] In this document, the terms "comprise", "contain", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or device. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0047] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term "arrange", "install", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled person in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0048] The above is only an example and description of the structure of the utility model, and those skilled in the art can make various modifications or supplements or replace with similar ways to the described specific embodiments, as long as it does not deviate from the structure of the utility model or beyond the scope defined by the present claims, should belong to the protection scope of the utility model.

Claims

1. An adjustable aberration lens structure, characterized in that, The lens structure is sequentially provided with optical aberration adjustment glass and FA adjustment optical lens group from the object side to the image plane side. The optical aberration adjustment glass is driven to move by the SA adjusting ring to adjust off-focus imaging. The FA adjustment optical lens group is driven to move by the FA adjusting ring to adjust back focus.

2. The tunable-aberration lens structure of claim 1, wherein: The SA adjusting ring inner circle is provided with an SA curve cylinder, the SA curve cylinder is provided with an SA curve groove, the inner circle of the curve cylinder is gap-fitted with the outer circle of the fixed cylinder, the fixed cylinder is provided with an SA guide groove, a first connecting guide pin is fixed on the SA sliding ring by penetrating the SA curve groove and the SA guide groove, the optical aberration adjustment glass is installed in the inner circle of the SA sliding ring, the first connecting guide pin can slide in the SA guide groove along the fixed cylinder in the axial direction, and the optical aberration adjustment glass is driven to move.

3. The tunable-aberration lens structure of claim 2, wherein: The SA curve groove is provided with a slope in the radial direction, and the first connecting guide pin is driven to move forward and backward by the SA curve groove by rotating the SA curve cylinder.

4. The tunable-aberration lens structure of claim 2, wherein: The FA adjusting ring inner circle is provided with an FA curve cylinder, the FA curve cylinder is provided with an FA curve groove, the inner circle of the FA curve cylinder is gap-fitted with the outer circle of the fixed cylinder, the fixed cylinder is provided with an FA guide groove, a third connecting guide pin is fixed on the FA integral sliding ring by penetrating the FA curve groove and the FA guide groove, the third connecting guide pin can slide in the FA guide groove along the fixed cylinder in the axial direction, the third connecting guide pin drives the FA integral sliding ring to move, and the FA adjustment optical lens group located in the FA integral sliding ring is driven to move.

5. The tunable-aberration lens structure of claim 4, wherein: The FA adjustment optical lens group is installed on the male head threaded part, the male head threaded part is provided with a male head thread, and the male head thread is matched with a female head thread of a female head threaded part to be assembled; The female head threaded part is arranged in the inner circle of the FA integral sliding ring, the third connecting guide pin drives the female head threaded part to move forward and backward; and the FA adjustment optical lens group is driven to move forward and backward; The side wall of the FA integral sliding ring is provided with a guide claw one, the surface of the non-threaded section of the male head threaded part is provided with a guide groove, and the guide claw one is clamped in the guide groove.

6. The tunable-aberration lens structure of claim 5, wherein: The FA curve groove is provided with a slope in the radial direction, and the third connecting guide pin is driven to move forward and backward by the FA curve groove by rotating the FA curve cylinder.

7. The tunable-aberration lens structure of claim 5, wherein: The female head threaded part is arranged in the inner circle of the FA integral sliding ring, the FA integral sliding ring is provided with a limiting waist groove, a second connecting guide pin penetrates the limiting waist groove and is connected with the female head threaded part, and the female head threaded part is limited to move in the axial direction relative to the FA integral sliding ring through the limiting waist groove.

8. The tunable-aberration lens structure of claim 7, wherein: The SA curve cylinder is provided with a guide claw two, the fixed cylinder is provided with a guide claw accommodating waist groove, the female head threaded part is provided with an SA linkage guide groove, the guide claw two is matched with the SA linkage guide groove by penetrating the guide claw accommodating waist groove, the SA curve cylinder can drive the female head threaded part to rotate in the radial direction within the waist groove through the guide claw two by matching the limiting waist groove.

9. A camera characterized by comprising: The adjustable aberration lens structure as claimed in any one of claims 1-8.

10. A camera characterized by The adjustable aberration lens structure as claimed in any one of claims 1-8.

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