Reflection Imaging Apparatus Stray Light Blocking Member
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Solution Overview
Problem
Conventional reflection type imaging apparatuses face challenges in reducing thickness and volume due to the size constraints of image sensors and printed circuit boards, leading to limited volume reduction and potential stray light issues affecting image quality.
Innovation Solution
A reflection type imaging apparatus is designed with a deflector that reflects light approximately 90 degrees, a reflecting mirror to direct light parallel to the incident direction, and a stray light blocking member positioned on the image sensor's printed circuit board to block stray light, allowing the image sensor to be disposed perpendicular to the light path, thereby reducing the apparatus's thickness and preventing image degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an optical splitter and three image sensors are used to detect RGB colors, then image quality is improved, but the size of the printed circuit board and overall volume are increased
Solution Approach 1:
The patent combines three separate image sensors into a single image sensor that can detect all three primary colors (RGB) simultaneously. This is achieved by integrating multiple color detection elements onto one sensor chip, thereby maintaining the image quality that would require three separate sensors while reducing the printed circuit board size and overall module volume.
Solution Approach 2:
The single image sensor is designed with multi-functional capability to detect multiple colors (Red, Green, Blue) simultaneously. This universal sensor replaces three specialized sensors, each dedicated to detecting one color, thereby achieving the same imaging function with reduced component count and smaller board space.
2Length of stationary object
If the image sensor size is reduced to decrease apparatus thickness, then thickness is reduced, but image quality deteriorates
Solution Approach 1:
By merging three color detection functions into a single integrated image sensor, the patent achieves full-color imaging capability in a compact form factor. This allows the apparatus to maintain reduced thickness while preserving image quality, as the single sensor captures all color information simultaneously without requiring three separate sensor arrays.
3Length of stationary object
If a deflector is installed to turn the optical axis 90 degrees, then the height in the Z-axis direction is reduced, but stray light occurs affecting image quality
Solution Approach 1:
The patent introduces a stray light blocking member as an intermediary element positioned between the deflector and the image sensor. This blocking member selectively intercepts stray light rays that would otherwise reach the sensor and cause image degradation, while allowing the deflector to maintain its height-reducing function. The blocking member acts as a mediator that resolves the conflict between compact geometry and optical purity.
4Measurement precision
If three image sensors are disposed on a printed circuit board, then color detection capability is improved, but the board size and apparatus volume are increased
Solution Approach 1:
The patent merges the functionality of three separate image sensors into a single integrated sensor unit that can detect all three primary colors simultaneously. This consolidation maintains full color detection capability while significantly reducing the number of components required, thereby decreasing the printed circuit board size and overall apparatus volume.
Solution Approach 2:
The patent transitions from a three-dimensional arrangement of three separate sensors stacked or arranged in space to a two-dimensional integration on a single sensor chip. This dimensional consolidation allows all color detection elements to be packed into a compact planar structure, reducing the overall volume requirement while maintaining detection capability.
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 configuration effectively reduces the thickness of the imaging apparatus and prevents stray light from affecting image quality, enabling better image capture while maintaining image resolution.
Implementation Method 1
a deflector configured to reflect light incident from an outside
Implementation Method 2
a reflecting mirror configured to reflect the light reflected by the deflector in a direction parallel to a direction in which the light is incident on the deflector
Implementation Method 3
the light reflected by the reflecting mirror is focused on the image sensor
Data Source
AI summary
A reflection type imaging apparatus includes a deflector that reflects light incident from an outside; a reflecting mirror that reflects the light reflected by the deflector in a direction parallel to a direction in which the light is incident on the deflector; an image sensor that is disposed below the reflecting mirror and arranged perpendicular to the direction in which the light is incident on the deflector, wherein the light reflected by the reflecting mirror is focused on the image sensor; and a stray light blocking member disposed at one side of the image sensor facing the deflector, the stray light blocking member configured to block stray light rays from the deflector from being directly incident on the image sensor.