The use of cameras within mobile devices such as cellular phones as well as for automotive and other applications, is spurring innovations in pixel density, lens quality and power usage. As the performance of the camera modules improves, the requirements for more accurate assembly techniques increase as well. Within the production process, joining methods as well as manufacturing machines have to fit together. A new technological solution was therefore created that advances the accuracy of this alignment process of camera modules and results in increased performance and yield Traditional Methods for Camera Module AssemblyCamera modules consist of two primary components: a CMOS camera sensor on a circuit board and an optically aligned and attached lens barrel assembly. Traditionally the manufacturing process inserts a threaded lens barrel into the camera housing, with the operator threading the lens barrel into the housing while monitoring the camera image on a video screen to align the lens for optimal image quality. With this type of design, the manufacturer only performs alignment of the lens assembly to the sensor in one dimension-along the optical (z) axis. For new generations of camera modules, alignment of the other two linear and additional two rotational axes becomes critical. Achieving a sharp image over the full plane of the sensor and throughout the full range of zoom capability requires accurate alignment of the lens to the sensor in not just one, but five degrees of freedom. This technology becomes essential as both camera-module resolutions and end customer expectations of image quality increase.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.