Dual Imaging Module Arrangement for Compact Camera Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing imaging apparatuses with two imaging modules are prone to vignetting when the distance between the modules is reduced, making it difficult to minimize the size of the apparatus without compromising performance.
Innovation Solution
The imaging apparatus is designed with first and second imaging modules arranged side by side in a direction along the short side of their respective imaging regions, with different focal distances and held by a frame portion. This configuration reduces vignetting and allows for a smaller size without performance deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between two imaging modules is reduced to minimize apparatus size, then the size of the imaging apparatus is reduced, but vignetting occurs more frequently
Solution Approach 1:
The patent changes the arrangement dimension of imaging modules from horizontal side-by-side to vertical stacking arrangement. The first imaging module is arranged above the second imaging module in the vertical direction, with their imaging regions overlapping in the vertical dimension. This dimensional change allows the modules to be closely positioned without causing vignetting in the horizontal imaging plane, thus resolving the contradiction between compact size and vignetting prevention.
Solution Approach 2:
The patent implements a nested arrangement where the imaging region of one module is positioned within or overlaps with the imaging region of another module in the vertical direction. The first imaging module's imaging region and the second imaging module's imaging region are arranged such that they nest vertically, allowing compact integration while maintaining full imaging coverage without mutual obstruction.
2Object-affected harmful factors
If hoods are added to each imaging module to prevent lens flare, then lens flare is prevented, but the device complexity and size increase
Solution Approach 1:
The patent merges the anti-lens flare function into the shared frame structure that holds both imaging modules. Instead of providing separate hoods for each module, the frame portion is designed with light-shielding surfaces that simultaneously protect both imaging modules from lens flare. This integration reduces the number of components and simplifies the overall structure while maintaining effective lens flare prevention.
Solution Approach 2:
The frame portion serving as the mounting structure for both imaging modules is given multiple functions: it provides mechanical support, positioning, and simultaneously acts as a light-shielding structure to prevent lens flare. The light-shielding surface of the frame performs the anti-lens flare function universally for both modules, eliminating the need for separate protective hoods.
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
This arrangement effectively minimizes vignetting even at reduced inter-module distances, enabling a compact design while maintaining imaging performance.
Implementation Method 1
first and second lens portions (32, 42) having mutually different focal distances
Implementation Method 2
light passing through the first and second lens portions enters the first and second imaging elements
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
[Object] To provide an imaging apparatus that can reduce the size of a configuration including two imaging modules. [Solving Means] An imaging apparatus includes first and second imaging modules and a frame portion. The first and second imaging modules that include first and second lens portions having mutually different focal distances and first and second imaging elements that light passing through the first and second lens portions enters, are configured to be capable of imaging first and second imaging regions each having a short side and a long side in an external environment spread in front in an imaging direction, respectively, and are arranged side by side in a direction along the short side. The frame portion includes first and second holding portions that hold the first and second imaging modules.