Mobile Terminal Anamorphic Lens for Widescreen Capture
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Solution Overview
Problem
Existing mobile phone lenses lack the capability to perform widescreen shooting functions, limiting the ability to take widescreen pictures and videos conveniently and efficiently.
Innovation Solution
A mobile terminal with a built-in anamorphic lens, comprising a cylindrical lens group and a spherical lens group, where the cylindrical lens group includes cylindrical negative and positive optical power lenses, and the spherical lens group includes aspheric lenses, with an inflection element to change the light path, allowing for widescreen image compression and correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional lens is used in mobile phones, then the device structure remains simple, but widescreen shooting function cannot be achieved
Solution Approach 1:
The lens system is segmented into two distinct functional groups: a cylindrical lens group for anamorphic compression and a spherical lens group for standard imaging. This segmentation allows each group to perform its specific function independently, enabling widescreen shooting capability while maintaining manageable structural complexity through modular design.
2Adaptability or versatility
If an anamorphic lens system is added to achieve widescreen shooting, then widescreen image capture is enabled, but the lens thickness increases
Solution Approach 1:
The cylindrical lens group and spherical lens group are arranged in a nested configuration along the optical axis, with the cylindrical group positioned in front of the spherical group. This nesting approach allows the anamorphic function to be integrated into the existing lens structure without requiring a completely separate optical path, thereby minimizing the increase in overall lens thickness.
3Shape
If cylindrical lenses are used to compress widescreen images, then widescreen aspect ratio is achieved, but image distortion increases
Solution Approach 1:
The spherical lens group acts as an intermediary between the cylindrical lens group and the image sensor. It receives the anamorphically compressed light from the cylindrical group and performs corrective imaging, reducing the distortion introduced by the cylindrical lenses while maintaining the widened aspect ratio. This mediator approach balances the anamorphic compression with image quality preservation.
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
Enables widescreen image and video capture by compressing widescreen images into standard formats, increasing the field of view and aspect ratio, while maintaining image quality and compact lens size.
Implementation Method 1
the optical characteristics of the cylindrical lens group composed of at least a group of cylindrical negative optical power lenses and a group of cylindrical positive optical power lenses in the widescreen anamorphic lens are utilized to 'compress' the incident light entering the cylindrical lens group horizontally while allowing the incident light entering the cylindrical lens group vertically to remain unchanged
Implementation Method 2
an inflection element is provided between the cylindrical lens group and the spherical lens group, and located on a light path of incident light through the cylindrical lens group, for inflecting the incident light to the spherical lens group
Data Source
AI summary
The present application discloses a mobile terminal with a built-in anamorphic lens, the mobile terminal is provided with a widescreen anamorphic lens which comprises a cylindrical lens group and a spherical lens group, the cylindrical lens group at least comprises a group of cylindrical negative optical power lenses and a group of cylindrical positive optical power lenses. A widescreen anamorphic lens is arranged in the mobile terminal. The optical characteristics of the cylindrical lens in the widescreen anamorphic lens are utilized to “compress” the incident light entering horizontally while keeping the incident light entering vertically unchanged, so the widescreen anamorphic lens may compress a widescreen image into a standard image area. After the compressed picture taken by the widescreen anamorphic lens is deformed and corrected by the image correction module, widescreen images and videos may be obtained, meeting the needs of users for widescreen shooting by the mobile terminal.