Optical Focusing System Using Reflective Elements for Thin High-Resolution Imaging

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Solution Overview

Problem

Conventional optical lenses with high resolution are expensive and fail to meet current requirements for thinness and resolution in compact devices like smartphones and digital cameras.

Innovation Solution

An optical focusing system comprising a lens group, a first reflective optical element, and a second reflective optical element, with specific geometric configurations and placements to achieve a thin, lightweight design, allowing for high-resolution imaging with a simplified camera structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional optical lenses are used to achieve high resolution, then imaging quality is improved, but system thickness and cost increase

Engineering Contradiction:
Improveimaging resolutionVSAvoidsystem thickness
Core Design Contradiction:
Measurement precisionVSLength of stationary object

Solution Approach 1:

The optical system is divided into multiple functional modules: a bionic lens for light collection, a beam splitting prism for light path separation, and a reflective optical element for focusing. This segmentation allows each component to be optimized independently, achieving high resolution while maintaining thinness by distributing optical functions across separate elements rather than requiring a single thick lens

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a reflective optical element that reflects light rays at approximately 90 degrees to redirect them onto the imaging surface. This dimensional change in light path direction enables the system to achieve high resolution imaging within a reduced thickness by utilizing spatial redirection rather than direct linear propagation

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If conventional optical lenses are used to achieve high resolution, then imaging quality is improved, but manufacturing cost increases

Engineering Contradiction:
Improveimaging resolutionVSAvoidmanufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent replaces conventional high-resolution lens systems with a combination of a bionic lens and a reflective optical element. This substitution uses simpler, more manufacturable components - the bionic lens for light gathering and the reflective element for focusing - thereby reducing manufacturing complexity and cost while maintaining high imaging resolution

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Length of stationary object

If reflective optical elements are introduced to reduce thickness, then system compactness is improved, but device complexity increases

Engineering Contradiction:
Improvesystem thicknessVSAvoidoptical system complexity
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The patent merges the beam splitting function and the light reflecting function into a single integrated optical system. The beam splitting prism and reflective optical element work together as a unified assembly, reducing the number of separate components and simplifying the overall device structure despite the introduction of reflective elements for thinness

Inventive Principle:
Principle #5Merging (Combining)

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

The system achieves a thin and lightweight camera structure with high-resolution imaging capabilities, enabling effective use in smartphones, tablet PCs, and card-type digital cameras while maintaining a practical and aesthetically pleasing design.

Implementation Method 1

a first reflective optical element and a second reflective optical element... for reflecting light rays

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS9323030B2Optical focusing system
Publication Date: 2016.04.26 UNION OPTECH
  • US9323030B2 patent drawing
  • US9323030B2 patent drawing
  • US9323030B2 patent drawing

AI summary

An optical focusing system, including: a lens group, a first reflective optical element, a second reflective optical element, and an optical sensing imaging surface. The first reflective optical element is disposed on an object end and the second reflective optical element is disposed at an image end, for reflecting light rays. The optical sensing imaging surface is disposed at the emergent surface of the second reflective optical element.