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Aperture driving structure and P-IRIS variable aperture

A technology for driving structure and aperture, applied in aperture, optics, camera, etc., can solve the problems of high manufacturing cost, inconvenient installation, complex structure, etc.

Pending Publication Date: 2022-08-02
东莞市维斗科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It should be pointed out that, for the blade driving mechanism of the above-mentioned aperture, it has the defects of complex structure, inconvenient installation, and high manufacturing cost.

Method used

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  • Aperture driving structure and P-IRIS variable aperture
  • Aperture driving structure and P-IRIS variable aperture
  • Aperture driving structure and P-IRIS variable aperture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example one, as Figure 1 to Figure 7 As shown in the figure, an aperture driving structure includes a fixed casing 1, the fixed casing 1 is provided with a casing light-passing hole completely penetrating the upper and lower sides, and the fixed casing 1 is equipped with a light-passing amount for adjusting the light-passing amount of the casing light-passing hole. Movable blade 2. For the movable blade 2, it can adopt a metal sheet structure; preferably, the movable blade 2 is a SUS304 blade. For the movable blade 2 made of SUS304 material, it has the characteristics of high temperature resistance and light penetration resistance , to effectively apply to complex environments such as infrared thermal imaging and projectors.

[0050] Further, the fixed housing 1 is provided with a drive motor 31 and a drive gear 4 located on the side of the drive motor 31 , the power output shaft of the drive motor 31 is provided with a motor output gear 32 , and the motor output gear...

Embodiment 2

[0058] The second embodiment, the difference between the second embodiment and the first embodiment is: figure 2 , Figure 4 as well as Figure 7 As shown, the driving gear 4 is provided with a limiting boss 42 that protrudes laterally outward, and the fixed base 11 is provided with a first limiting stop wall 112 and a second limiting stop wall 113 corresponding to the limiting boss 42; When the blade 2 is at the position of the maximum light flux of the aperture, the limit boss 42 abuts against the first limit stop wall 112; when the movable blade 2 is at the position of the minimum light flux of the aperture, the limit boss 42 abuts against the second limit Blocking wall 113 .

[0059] Among them, for the limiting boss 42 of the second embodiment, it may adopt an integrated structure design or a split structure design; for the limiting boss 42 with an integrated structure design, the limiting convex The platform 42 and the drive gear 4 are integrally structured; for the ...

Embodiment 3

[0061] The third embodiment, the difference between the third embodiment and the first embodiment is: figure 2 , Figure 4 , Figure 5 as well as Figure 7 As shown, the fixed base 11 is provided with an upwardly protruding gear sleeve shaft 114 , the core of the driving gear 4 is provided with a gear center hole 43 that completely penetrates up and down, and the drive gear 4 is sleeved on the gear sleeve shaft 114 through the gear center hole 43 .

[0062] Wherein, the upper end surface of the gear sleeve shaft 114 is screwed and fastened with the graphite gasket 5 through the locking screw, and the driving gear 4 is vertically limited by the graphite gasket 5 .

[0063] In the process of installing the drive gear 4 by the aperture drive structure of the third embodiment, the gear center hole 43 of the drive gear 4 is aligned and sleeved on the gear sleeve shaft 114 of the fixed base 11 , and then the graphite washer is fastened by locking screws. 5 is fastened to the upp...

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Abstract

The invention discloses an aperture driving structure and a P-IRIS variable aperture. The aperture driving structure comprises a fixed shell, the fixed shell is provided with a movable blade, the fixed shell is provided with a driving motor and a driving gear, a power output shaft of the driving motor is provided with a motor output gear, and the motor output gear is meshed with the driving gear; the driving gear is provided with a driving convex column, and the driving convex column is inserted into a blade driving hole of the movable blade; the aperture driving structure is novel in design, simple in structure, convenient and fast to install and low in manufacturing cost. The P-IRIS iris diaphragm comprises the diaphragm driving structure, a magnet support and a PCB, the PCB is provided with a Hall sensor, the magnet support is fastened to the movable blade and provided with an induction magnet, and the induction magnet is close to the Hall sensor of the PCB. The P-IRIS variable aperture is novel in design, high in light flux control precision, simple in structure, convenient and rapid to install and low in manufacturing cost.

Description

technical field [0001] The invention relates to the field of aperture technology, in particular to an aperture drive structure and a P-IRIS variable aperture. Background technique [0002] Aperture is a device used to control the light passing through the lens and the amount of light entering the photosensitive surface of the body. It has been widely used in various types of cameras, projectors, and infrared thermal imaging products. [0003] The reference patent number is: 201310160849.0, the patent name is: a Chinese invention patent with a single invisible aperture, the invention patent discloses a blade drive mechanism, the blade drive mechanism includes a coil frame and a coil winding wound around the coil frame , the coil frame is installed on the bottom plate, the core of the coil frame is formed with a accommodating cavity, and the accommodating cavity is rotatably embedded with a magnet and a driving rod that acts synchronously with the magnet, and the driving rod i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B9/06
CPCG03B9/06
Inventor 杨俊文赵少伟张庭军
Owner 东莞市维斗科技股份有限公司