Portable Magnifier with Rotating Handle and Auto-Focus
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Solution Overview
Problem
Existing portable magnifying apparatuses are inconvenient for users with weak wrists or limited hand dexterity, as they often require straining the wrist to use at comfortable angles, have uneven weight distribution leading to instability, and suffer from degraded picture quality due to fixed focus and illumination issues.
Innovation Solution
A portable magnifying apparatus with a handle adjustable in multiple angles parallel to the body, a multi-stage support system, and an active auto-focusing scheme using a CMOS sensor and distance sensor for automatic focus and illumination adjustment, along with a user interface for easy button manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the handle and body are positioned in a straight line for simple structure, then manufacturing is easier, but the user's wrist is strained when used at comfortable angles
Solution Approach 1:
The handle is designed to be rotatable relative to the body, allowing it to change orientation dynamically. The handle includes a rotation mechanism with a rotation axis that is not parallel to the optical axis, enabling the user to adjust the handle angle to a comfortable position while viewing through the eyepiece, thus eliminating wrist strain.
2Volume of moving object
If the battery is embedded in the body for compact design, then the device is more compact, but the center of gravity shifts toward the body causing the handle to feel heavy
Solution Approach 1:
The battery is separated from the main body and placed in the handle portion. This segmentation allows the weight to be distributed more favorably, with the battery located near the user's hand in the handle, balancing the overall center of gravity and reducing the perceived heaviness when holding the device.
3Ease of manufacture
If a fixed focus scheme is used for simple design, then manufacturing is easier, but the image becomes unclear when the subject is out of a limited distance range
Solution Approach 1:
The patent replaces manual mechanical focusing with an automatic focusing system. An autofocus mechanism including a motor-driven lens assembly automatically adjusts the focus based on detected subject distance, eliminating the need for manual focus adjustment while ensuring clear images at various distances.
4Adaptability or versatility
If the support-type magnifier is held in hands for use, then portability is maintained, but users with handicapped hands cannot hold and use it
Solution Approach 1:
The device is designed with a handle-type configuration that can be easily grasped by users with various hand conditions. The handle provides a ergonomic grip that is accessible to users with limited hand dexterity, while the device maintains its portable nature. The magnifier can be used by attaching it to the handle or by direct hand holding, providing universal accessibility.
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 comfortable use for both right- and left-handed users without wrist strain, provides clear and stable images with automatic focus and illumination adjustment, and maintains original picture quality when used on a surface, enhancing user convenience and image clarity.
Implementation Method 1
a lens unit installed on a bottom surface of the body and focused to capture an image of a nearby subject or a remote subject
Implementation Method 2
a CMOS sensor unit provided within the body and converting an image obtained through the lens unit into image data
Data Source
AI summary
Provided is a portable magnifying apparatus that can be easily carried around. More particularly, provided is a portable magnifying apparatus which is conveniently used for users either left-handed or right-handed and has a multi angular positioned handle that can be manipulated without putting strain on the wrist.