Optical Array Refractive Surface Stray Light Control
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Solution Overview
Problem
Stray light transmission through light shielding surfaces in optical element arrays affects image formation in image forming apparatuses, leading to reduced image quality.
Innovation Solution
The optical array design includes optical elements with incident, first reflection, second reflection, emission, and refractive surfaces, along with strategically positioned light shielding surfaces to minimize stray light, using a configuration that refracts light away from the emission surface to prevent unwanted light from reaching the image surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light shielding layer is formed on the light shielding surface, then light transmission is reduced, but some light still transmits through and becomes stray light
Solution Approach 1:
The light shielding surface is divided into multiple segments corresponding to different optical elements. Each segment is independently configured with light shielding layers and refractive surfaces, allowing precise control of light paths for each optical element while maintaining overall system performance
Solution Approach 2:
A refractive surface is added to the light shielding surface, creating a new functional dimension. This refractive surface redirects transmitted light away from the image surface, effectively eliminating stray light that penetrates through the light shielding layer
2Productivity
If optical elements are arranged in a line to form images, then image formation capability is achieved, but stray light is generated that affects image quality
Solution Approach 1:
Each optical element in the array is equipped with its own dedicated light shielding surface and refractive surface configuration. This localized approach ensures that stray light from each element is controlled independently, maintaining image quality across the entire array
Solution Approach 2:
The refractive surface converts the harmful transmitted light into a beneficial direction by refracting it away from the image surface. This transforms the potential stray light problem into a controlled light path solution
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 influence of stray light on image formation, enhancing the quality and accuracy of images produced by the image forming apparatus.
Implementation Method 1
a refractive surface at which light that passes through the first reflection surface from inside the optical element is refracted away from the emission surface
Implementation Method 2
a first reflection surface at which the light passing through the incident surface is reflected
Implementation Method 3
a second reflection surface at which the light reflected by the first reflection surface is reflected again
Data Source
AI summary
An optical array includes one or more optical elements each including an incident surface at which light is incident into the optical element, a first reflection surface at which the light passing through the incident surface is reflected, a second reflection surface at which the light reflected by the first reflection surface is reflected again, an emission surface at which the light from the second reflection surface exits the optical element, and a refractive surface at which light that passes through the first reflection surface is refracted away from the emission surface.