Device and method of quickly aligning optical axis of micro optical lens

Abstract

The invention is applicable to the field of precise instrument adjustment, and provides a device for quickly aligning the optical axis of a micro optical lens, which comprises a film image arranged above a to-be-aligned micro optical lens, a relay lens, a camera arranged below the micro optical lens and performing photographing from bottom to top, and an adjusting mechanism for adjusting the optical axis of the micro optical lens, wherein the relay lens is located between the film image and the micro optical lens; optical axes of the film image, the relay lens and the camera are overlapped; the center of the film image is provided with a feature graph, and the center of the feature graph is overlapped with the center of the film center. In a condition in which overlapping of the optical axes of the film image, the relay lens and the camera is met, through photographing of the camera from bottom to top, the optical axis offset of the micro optical lens can be analyzed through the film image and the feature graph image, adjustment through the adjusting mechanism is carried out, the structure of the device and the algorithm are concise and simple, operation is easy, no expensive measurement instrument is needed, the optical axis alignment efficiency and the accuracy are improved, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of precision mechanical adjustment, in particular to a device and method for quickly aligning the optical axis of a micro-optical lens. Background technique [0002] At present, handheld mobile devices such as mobile phones and tablet computers are becoming more and more popular, and people also have high requirements for the shooting functions of these devices. Therefore, there is a large demand for micro lenses and high requirements for production capacity. The alignment of the optical axis of the micro-optical lens is an important step in the assembly of the camera components of the mobile device. The traditional method of aligning the micro-optical lens is mostly to use a mechanical method to adjust the position of the micro-optical lens, and use a level to adjust the tilt angle of the micro-lens. This method needs to add additional equipment in the assembly of the micro-optical lens, and also requires a...

AI Technical Summary

Problems solved by technology

This method needs to add additional equipment in the assembly of the micro-optical lens, and also requires a lot of manual participation and adjustment. It takes a long time to align the lens, and because the automation equipment has high requirements for measurement accuracy, for To achieve the purpose of aligning the micro-optical lens, more expensive measuring instruments are needed, so the cost of aligning the optical axis of the micro-optical lens is also high

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