High-precision optical lens imaging module and production method thereof

Abstract

The invention discloses a high-precision optical lens imaging module and a production method thereof. The imaging module comprises operation equipment and upper and lower lens base assembling equipment, and the operation equipment comprises a transverse guide rail, a transverse sliding plate, a dispensing structure, an upper alignment structure and a grabbing structure; the upper and lower lens base assembling equipment comprises an imaging chip fixing machine table, a fixing structure, a lower alignment mechanism and a six-axis base frame, the upper alignment structure and the lower alignment structure are arranged, through accurate alignment, the installation position deviation of the upper and lower lens bases is reduced, the yield and the imaging quality of lenses are improved, an imaging chip is arranged, the imaging chip is used for shooting pictures at a high frame rate and testing, so that each lens is ensured to be assembled after being tested and reaching the optimal assembly position during production, and the produced lens is better in imaging effect.

Description

【Technical field】 [0001] The invention relates to the field of mirror optics, in particular to a high-precision optical lens imaging module and a production method thereof. 【Background technique】 [0002] Image modules are widely used in mobile phones, tablet computers, notebook computers, automobiles, etc. In order to meet the market demand, sensors with higher resolution and smaller pixel size and more complex imaging lenses with large apertures are used. In order to match such high-resolution sensors, imaging lenses usually have more than 5 plastic lenses and free-form surface components and A very large clear aperture, the image quality of the lens, and the relative spatial relationship between the lens and the sensor will all affect the overall image quality of the module, generally by actively adjusting the lens and image sensor module before bonding the lens and image sensor together. the spatial relationship between [0003] Although the design performance of the l...

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Problems solved by technology

[0004] The current method to ensure the assembly accuracy of lens components is to ensure mechanical tolerances, such as plastic lens tolerances, including outer diameter, thickness, verticality, and lens mount tolerances. However, it is difficult to achieve sub-micron levels using this method, resulting in low yields;

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