Panoramic Lens Focusing Verification for Assembly Accuracy
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Solution Overview
Problem
Existing lens focusing workstations are unsuitable for panoramic lenses due to their large size and wide visible range, leading to potential focal length errors during assembly, which can be exacerbated by accidental contact with incompletely solidified adhesive gel.
Innovation Solution
A panoramic lens focusing workstation with a base, lens actuator assembly, lens holder, image capturing unit, focalizer, and light source units, controlled by a control unit, performs focusing tests by aligning the focus adjusting ring with a calliper image and adjusting the focal length to ensure precision before and after affixing to a printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional lens focusing workstation is used, then the focusing test can be performed for standard lenses, but the workstation is unsuitable for panoramic lenses due to their large size and wide visible range
Solution Approach 1:
The patent applies dynamics by making the light source unit movable rather than fixed. The light source unit can be positioned at different locations around the panoramic lens to provide illumination from multiple angles, adapting to the wide visible range and large size of panoramic lenses. This dynamic positioning capability enables the workstation to perform focusing tests on various lens types including panoramic lenses.
2Ease of manufacture
If the lens is assembled with adhesive gel, then the lens can be affixed to the printed circuit board, but accidental contact with incompletely solidified adhesive gel causes focal length errors
Solution Approach 1:
The patent applies preliminary action by performing the focusing test before the lens is affixed to the printed circuit board with adhesive gel. The pre-focus test is conducted on the semi-finished lens at the focusing workstation, confirming the focal length is correct before the lens assembly process begins. This preliminary verification prevents focal length errors that would occur if the lens were accidentally touched during assembly with incompletely solidified adhesive gel.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents focusing misalignment and improves the precision and quality of panoramic lenses by ensuring accurate focal length adjustments before and after assembly, thereby enhancing the overall lens performance.
Implementation Method 1
an image capturing unit arranged on the lens holder, the image capturing unit being located at an optical axis of the panoramic lens to capture images by the panoramic lens
Implementation Method 2
a plurality of light source units fastened on four corners of the base, the plurality of the light source units providing a calibration picture
Data Source
AI summary
A method of verifying a focusing operation of a panoramic lens performs a focusing test on the panoramic lens including aligning a focus adjusting ring and a calliper on a panoramic lens focusing workstation. If the focus adjusting ring and the calliper are aligned, a focal length adjusting test is executed for the panoramic lens. A focalizer is controlled to execute the focal length adjusting test. The focusing test of the panoramic lens is performed before and after the panoramic lens is affixed to a printed circuit board assembly of a lens holder.