Foldable Portable Device Nested Lens Optical Path Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional portable devices with unifocal lenses struggle to capture long-distance or wide-angle images, leading to usability issues. Additionally, external lens accessories are cumbersome to carry and install, increasing device size, weight, and manufacturing costs.
Innovation Solution
A foldable portable device design where an imaging device can be folded, allowing multiple lenses to be inserted and installed. The device includes a first body with a first lens and image sensor, a second body that folds over to share the same optical path, and controllers for axis correction and magnification adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of lenses are inserted into and installed in the portable device, then image capturing versatility is improved, but device size increases
Solution Approach 1:
The patent implements a nested lens structure where multiple lenses with different focal lengths are arranged concentrically along the optical axis. The first lens (wide-angle) has a larger diameter and is positioned outermost, while the second lens (telephoto) with smaller diameter is positioned innermost. This nesting arrangement allows multiple lens functions to be integrated within a compact space, enabling versatile image capturing without significantly increasing device size.
2Adaptability or versatility
If various types of lenses are inserted into and installed in the portable device, then image capturing versatility is improved, but weight increases
Solution Approach 1:
The nested lens configuration allows multiple lenses to share the same mounting space, eliminating the need for separate lens modules. By arranging lenses concentrically rather than side-by-side, the total weight increase is minimized while still providing multiple focal length options for versatile image capturing.
3Adaptability or versatility
If a lens protrudes rearward from the imaging device, then image capturing capability is improved, but risk of foreign matter attachment and lens damage increases
Solution Approach 1:
The nested lens structure allows all lenses to be contained within the device housing without protruding rearward. The concentric arrangement enables the optical paths of different focal length lenses to overlap, allowing the device to maintain a sleek profile while still providing versatile image capturing capabilities.
Solution Approach 2:
Instead of extending the device lengthwise to accommodate multiple lenses, the patent utilizes the radial dimension by arranging lenses concentrically. This dimensional transition allows multiple lenses to fit within the device's cross-sectional area, preventing rearward protrusion and reducing exposure to foreign matter and damage risks.
4Adaptability or versatility
If lens accessories are attached to the portable device, then image capturing versatility is improved, but ease of operation deteriorates
Solution Approach 1:
The patent integrates multiple lenses directly into the device body, merging what would otherwise be separate accessories into a unified structure. This eliminates the need for users to attach or detach lens accessories, significantly improving ease of operation while maintaining versatile image capturing capabilities.
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 easy image capture with various lenses in a folded state, improves image reliability through automatic axis correction, and reduces device size and weight, making it more portable and user-friendly.
Implementation Method 1
a first lens configured to recognize an object and a first image sensor configured to detect an image of the object recognized by the first lens
Implementation Method 2
a second lens configured to adjust a focus for the object recognized through the first lens
Implementation Method 3
a first path change member and a second path change member which are provided on two end portions of the fourth lens and configured to change a path of light incident on the fourth lens through the third lens
Data Source
AI summary
A foldable portable device is disclosed. The foldable portable device according to the present invention includes a first body provided with a first lens configured to recognize an object and a first image sensor configured to detect an image of the object recognized by the first lens, a second body coupled to the first body to be folded toward the first body and provided with a second lens configured to adjust a focus for the object recognized through the first lens, and a first controller provided in the second body and configured to adjust a magnification of the object focused by the second lens, wherein the first lens and the second lens are provided to have the same optical path when the second body is folded toward the first body and overlaps the first body.