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Apple offers a new concept ^[2] of an improved iPhone ^[3] camera system that would allow users to reconfigure or replace camera lenses. The details of Apple’s new invention were published by the U.S. Patent ^[4] and Trademark ^[5] Office on Thursday.

The filing notes that as the quality of digital images taken with highly compact devices increases, users seek even more sophisticated features typically only found with high-end digital cameras. Features such as supplementary lenses and filters, optical zoom, and optical image stabilization are not typically found in multifunction devices that include a camera.

Most part of mobile ^[6] devices has a pre-assembled digital imaging subsystem to make them compact, but doesn’t allow to replace camera lenses.

"It would be desirable to provide a structure for a compact device that allows the end user to reconfigure the optical arrangement of the device while retaining the benefits of assembling the device using a pre-assembled digital imaging subsystem," the filing reads.

Apple offers a portable device, like an iPhone, that includes a digital imaging subsystem. The device would feature a removable back panel that, when removed, would expose the digital imaging subsystem. Apple's system would include the IR-cut filter on the removable panel, which would allow photographers to remove it and capture black-and-white images at very low light levels. The optical component on an iPhone would also feature a close-up lens that would reduce the focal distance and allow for extreme close-up photography.

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