Optical Lens Barrel Alignment Using Threaded Adjustable Holder

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Solution Overview

Problem

Consumer products often face challenges in achieving high-quality camera images due to imperfect camera component alignment, which requires expensive precision alignment systems or high-quality components that are cost-prohibitive.

Innovation Solution

An optical system with a base, image sensor, holder, collar, and lens barrel that allows for adjustable spacing and angular orientation between the lens barrel and image sensor, using threaded connections to facilitate independent adjustments in the z-direction and θz-direction, improving image quality without the need for expensive precision adjustment systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If expensive precision alignment systems are used to align camera components, then manufacturing precision is improved, but device cost increases

Engineering Contradiction:
Improvecamera component alignmentVSAvoidalignment system cost
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The holder is divided into multiple adjustable components: a first holder portion fixed to the base, a second holder portion with adjustable positioning, and a collar with independent adjustment capabilities. This segmentation allows each component to be optimized independently for alignment without requiring an expensive monolithic precision alignment system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The holder incorporates adjustable elements that can be dynamically positioned and locked in place. The second holder portion and collar include adjustment mechanisms that allow real-time positioning optimization during assembly, then lock into fixed positions to maintain precision, eliminating the need for expensive static precision alignment equipment.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If high-quality camera components are used, then image quality is improved, but manufacturing cost increases

Engineering Contradiction:
Improveimage qualityVSAvoidmanufacturing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The system allows changing positional parameters of the lens barrel and image sensor relative to each other through the adjustable holder mechanism. By optimizing the spacing and angular orientation parameters during assembly, the system achieves high image quality without requiring expensive precision-machined components, as the adjustment mechanism compensates for standard manufacturing tolerances.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If adjustable spacing and angular orientation are implemented, then alignment precision is improved, but device complexity increases

Engineering Contradiction:
Improvelens barrel alignmentVSAvoidholder structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The holder structure uses a nested arrangement where the collar fits within the holder, and the lens barrel fits within the collar. This nesting allows multiple adjustment functions to be integrated into a compact structure, reducing overall device complexity while maintaining alignment precision. The nested design allows adjustments to be made at different levels without requiring a complex distributed mechanism.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS10070028B2Optical systems and methods of use
Publication Date: 2018.09.04 MICROSOFT TECHNOLOGY LICENSING LLC
  • US10070028B2 patent drawing
  • US10070028B2 patent drawing
  • US10070028B2 patent drawing

AI summary

An optical system with a base and an image sensor fixed to the base. The optical system includes a holder fixed to the base about the image sensor. The optical system includes a collar oriented about the image sensor and the holder. The optical system includes a lens barrel oriented about the image sensor, the holder, and the collar. The lens barrel includes at least one lens oriented therein. Two of the holder, collar, and lens barrel are threaded together.