Aperture module and lens module

Abstract

An embodiment of the present invention provides an aperture module and a lens module, including a base, a drive ring rotatably disposed within the base, a drive assembly disposed between the base and the drive ring, a first pad and a plurality of blades sequentially disposed on the top of the drive ring and the base, respectively. One end of each blade forms a light-transmitting hole, and the other end is connected to the drive ring. The first pad is fixedly connected to the drive ring. The top surface of the base is provided with a plurality of first connecting members, the first pad is provided with a plurality of first arc-shaped clearance grooves, and each blade is provided with an arc-shaped guide groove. The first connecting members extend into the corresponding first arc-shaped clearance grooves and arc-shaped guide grooves. When the drive ring drives each blade to rotate synchronously to adjust the size of the light-transmitting hole, it also drives the first pad to rotate synchronously, effectively reducing the friction of each blade, improving the smoothness of blade opening and closing, and extending the service life of the overall structure.

Claims

1. An aperture module, characterized in that the aperture module comprises: The base has a plurality of first connectors along its circumference; The drive ring is rotatably mounted within the base; A drive assembly is disposed between the base and the drive ring; a first gasket is disposed at the top of the drive ring and the base, the first gasket is fixedly connected to the drive ring, and the first gasket is provided with a plurality of first arc-shaped clearance grooves, each of the first arc-shaped clearance grooves corresponding to each of the first connecting members. And a plurality of blades are disposed at the top of the first pad. One end of each blade forms a light-transmitting hole, and the other end is connected to the drive ring. Each blade is provided with an arc-shaped guide groove. The first connector extends into the corresponding first arc-shaped clearance groove and the arc-shaped guide groove in sequence.

2. The aperture module as described in claim 1, wherein, The aperture module also includes a second pad, which is disposed at the top of a plurality of blades. The second pad has a plurality of second arc-shaped clearance grooves corresponding one-to-one with the first connector. The first connector extends into the corresponding first arc-shaped clearance groove, arc-shaped guide groove and second arc-shaped clearance groove in sequence.

3. The aperture module as described in claim 2, wherein, The number of the multiple blades is even, and the multiple blades are divided into a first blade group and a second blade group. The first blade group and the second blade group are stacked, and the multiple blades in the first blade group and the multiple blades in the second blade group are arranged alternately.

4. The aperture module as described in claim 3, the aperture module further comprising a third gasket disposed between the first blade group and the second blade group, the third gasket having a plurality of third arc-shaped clearance grooves, the first connector extending into the corresponding first arc-shaped clearance groove, the third arc-shaped clearance groove, the second arc-shaped clearance groove and the arc-shaped guide groove.

5. The aperture module as described in claim 4, wherein, The top surface of the drive ring is provided with a plurality of stop portions protruding circumferentially. The first gasket is provided with a plurality of first clearance holes, the second gasket is provided with a plurality of second clearance holes, and the third gasket is provided with a plurality of third clearance holes. The stop portions pass through the corresponding first clearance holes, third clearance holes, and second clearance holes in sequence.

6. The aperture module as described in claim 4, wherein, The drive ring is provided with a plurality of second connectors, and each blade is provided with a fourth connection hole. The second connectors and the fourth connection holes are rotatably connected in a one-to-one correspondence. The drive ring drives the corresponding blade to rotate through the second connectors.

7. The aperture module as described in claim 6, wherein, The first gasket has a plurality of first connecting holes, the second gasket has a plurality of second connecting holes, and the third gasket has a plurality of third connecting holes. The first connecting holes, the third connecting holes, and the second connecting holes are arranged in a one-to-one correspondence and are rotatably connected to the second connecting member. The drive ring drives the plurality of blades to rotate synchronously with the first gasket, the second gasket, and the third gasket through the second connecting member.

8. The aperture module as described in claim 1, wherein, The base is provided with an annular clearance groove, in which a plurality of rolling elements are distributed circumferentially. The drive ring is rotatably installed in the annular clearance groove, and the rolling elements are in rolling contact with the bottom surface of the drive ring.

9. The aperture module as described in claim 8, wherein, The drive assembly includes a coil and a plurality of magnetic elements. The coil is disposed at the bottom of the annular clearance groove, and the plurality of magnetic elements are respectively disposed on the periphery of the drive ring. The coil and the plurality of magnetic elements are disposed opposite to each other to drive the drive ring to rotate.

10. A lens module, characterized in that the lens module comprises: Mirror base; The aperture module described in any one of claims 1 to 9 is coaxially sleeved on the outside of the lens mount; The outer casing covers the outside of the aperture module.

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