A Transmission Mechanism Applied to Optical Zoom Lens
A transmission mechanism and optical zoom technology, applied in optics, optical components, installation, etc., can solve problems such as the low parallelism between the axis of the zoom cylinder and the central axis of the gear, large lens transmission errors, and affect the imaging quality, so as to improve the imaging quality , reduce the transmission error, improve the effect of transmission accuracy
Active Publication Date: 2017-05-31
UNION OPTECH
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Problems solved by technology
[0004] Existing optical zoom lenses generally use a motor to drive the zoom cylinder to rotate, so that the zoom cylinder drives the lens assembly to move linearly along the guide cylinder to complete the zoom, but the transmission device of the current zoom lens is generally split, that is, it is divided into lenses Components and drive components. When the lens device is assembled, the original separate lens component and the drive component are connected by screws. Such a structure will cause the center deviation of the zoom barrel in the lens component and the gear in the drive component due to the work of different personnel. Large, so that the parallelism between the axis of the zoom cylinder and the central axis of the gear is not high, resulting in a large transmission error during the zooming process of the lens, which affects the image quality
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[0033] The present invention will be further described below in conjunction with accompanying drawing:
[0034] Such as Figure 1 to Figure 5 As shown, a transmission mechanism applied to an optical zoom lens includes a substrate 1, and the two sides of the substrate 1 are respectively provided with a first guide cylinder 2 and a second guide cylinder 3 integrally formed with it. The guide cylinder 2 is covered with a first zoom cylinder 4 that can rotate relative to it. The first zoom cylinder 4 is provided with a first lens that can be driven by it to move along the axis of the first guide cylinder 2 when it rotates. Assembly 5, a plurality of first teeth 6 are arranged on the first zoom cylinder 4 along the circumferential direction, and a first drive motor 7 directly connected to it is arranged on the said base plate 1, and said first The output shaft of the drive motor 7 is provided with a first gear 8 that can mesh with the first teeth 6; the second guide cylinder 3 is ...
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The invention discloses a transmission mechanism applied to an optical zoom lens, which includes a base plate, a first guiding cylinder and a second guiding cylinder integrally formed with the base plate are respectively arranged on both sides, and a first zooming lens is sleeved on the first guiding cylinder. barrel, the first zoom barrel is provided with a first lens assembly that moves along the axis of the first guide barrel, a plurality of first teeth are arranged on the first zoom barrel and along the circumferential direction, and a first tooth that is directly connected to it is arranged on the substrate A drive motor, the output shaft of the first motor is provided with a first gear capable of meshing with the first teeth; the second guide cylinder is provided with a second zoom cylinder, and the second zoom cylinder is provided with a gear along the axis of the second guide cylinder. The moving second lens assembly is provided with a plurality of second teeth along the circumferential direction on the second zoom cylinder, and a second drive motor directly connected to it is provided on the base plate, and the output shaft of the second drive motor is provided with A second gear engageable with the second teeth. The invention has a simple structure and can improve the imaging quality of the zoom lens.
Description
[0001] 【Technical field】 [0002] The invention relates to a transmission mechanism applied to an optical zoom lens. [0003] 【Background technique】 [0004] Existing optical zoom lenses generally use a motor to drive the zoom cylinder to rotate, so that the zoom cylinder drives the lens assembly to move linearly along the guide cylinder to complete the zoom, but the transmission device of the current zoom lens is generally split, that is, it is divided into lenses Components and drive components. When the lens device is assembled, the original separate lens component and the drive component are connected by screws. Such a structure will cause the center deviation of the zoom barrel in the lens component and the gear in the drive component due to the work of different personnel. Large, so that the parallelism between the axis of the zoom cylinder and the central axis of the gear is not high, resulting in a large transmission error during the zooming process of the lens, which a...
Claims
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IPC IPC(8): G02B7/04
CPCG02B7/04
Inventor 何均顺李中杰杨勇潘华彭清连邹文彬邱盛平
Owner UNION OPTECH