Optical Zoom Pen Device Integrating Lens and Sensor
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Solution Overview
Problem
Existing electric pen devices with optical zoom functions for electronic devices, such as smartphones, require additional space for a lens module, increasing device thickness and potentially degrading image quality when using digital zoom.
Innovation Solution
An electric pen device with an integrated optical system, including a plurality of lenses and an image sensor, a control key for optical zoom control, and a controller for communication with electronic devices, which allows for wireless operation and optical zoom control without increasing device thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an additional lens module is mounted to achieve optical zoom, then image quality is improved, but device thickness is increased
Solution Approach 1:
The patent combines the optical zoom lens module with the existing camera module into a single integrated unit. The optical zoom lens is positioned in front of the camera lens, and both lenses work together within the same optical path, eliminating the need for separate lens modules and reducing overall device thickness while maintaining optical zoom capability
Solution Approach 2:
The optical zoom lens module is nested within the camera module structure. The optical zoom lens is positioned such that it shares the same mounting space and optical axis as the camera lens, with the optical zoom lens having a smaller diameter than the camera lens, allowing it to be accommodated within the existing camera module footprint
2Length of stationary object
If digital zoom is used to avoid additional lens module, then device thickness is maintained, but image quality is reduced
Solution Approach 1:
The optical zoom lens acts as an intermediary optical element between the external environment and the camera sensor. It performs actual optical magnification before light reaches the camera lens, providing true optical zoom capability rather than digital cropping, thereby maintaining high image quality while keeping the device thin
3Adaptability or versatility
If optical zoom lens module is added, then optical zoom function is achieved, but device complexity is increased
Solution Approach 1:
The integrated optical zoom camera module serves multiple functions: it provides both optical zoom capability and standard photography functions through a single unified structure. The optical zoom lens can be used for zoomed shots while also allowing wide-angle shots when not engaged, eliminating the need for separate dedicated zoom and standard camera modules
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
The electric pen device provides high-quality optical zoom functionality without increasing the thickness of electronic devices, maintaining image quality and enabling wireless operation with external electronic devices.
Implementation Method 1
an image sensor configured to convert an image signal of light that has passed through the optical system to an electrical signal
Implementation Method 2
The optical zoom may perform a function of optically enlarging or reducing an image or a picture by using a lens array
Implementation Method 3
The optical path conversion unit may include a prism or a mirror
Implementation Method 4
The optical path conversion unit may include a prism or a mirror
Data Source
AI summary
The electric pen device includes an optical system including a lens and an image sensor configured to convert an image signal of light that has passed through the optical system to an electrical signal. The electric pen device includes a control board configured to interact with an electronic device and a communication module configured to communicate by wire or wirelessly with the electronic device, so that an image or a picture taken by a camera is confirmed and an optical zoom is controlled from the external electronic device.