Adjustment Image Generating Device for Laser Projector Color Synchronization

Solution Overview

Problem

Manual attachment of wheels and rotational position detection marks in image display devices leads to positioning errors, resulting in inaccurate synchronization control and color mixture in projected images due to uneven skill levels and quality in adjustment processes.

Innovation Solution

An adjustment image generating device that projects an image with adjacent color sections near the boundary between transmission and reflection areas of a wheel, allowing for easy correction of index signal offsets by visually identifying geometric patterns, enabling precise synchronization timing adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If manual attachment of wheel and rotational position detection mark is performed, then device complexity is reduced, but manufacturing precision deteriorates due to positioning errors

Engineering Contradiction:

Improveattachment process complexityVSAvoidattachment position precision

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The system automatically generates an adjustment image using the index signal from the manually attached wheel and detection mark, eliminating the need for external adjustment tools or skilled operators. The device self-diagnoses the timing offset and provides visual feedback for correction.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The adjustment image displays different color regions (first color using boundary section, second color not using boundary section) that change based on the timing offset. This visual color differentiation allows operators to easily identify and correct positioning errors without requiring advanced skills.

Inventive Principle:

Principle #32Color changes

2Manufacturing precision

If manual adjustment of synchronization timing is performed, then manufacturing precision can be improved, but productivity deteriorates due to skill-dependent adjustment processes

Engineering Contradiction:

Improvesynchronization timing precisionVSAvoidadjustment process efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The system automatically generates an adjustment image using the index signal from the manually attached wheel and detection mark, eliminating the need for external adjustment tools or skilled operators. The device self-diagnoses the timing offset and provides visual feedback for correction.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The adjustment image displays different color regions (first color using boundary section, second color not using boundary section) that change based on the timing offset. This visual color differentiation allows operators to easily identify and correct positioning errors without requiring advanced skills.

Inventive Principle:

Principle #32Color changes

3Ease of operation

If simple adjustment image is provided, then ease of operation is improved, but measurement precision deteriorates due to inability to accurately detect timing offset

Engineering Contradiction:

Improveadjustment operation simplicityVSAvoidtiming offset detection precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The adjustment image displays different color regions (first color using boundary section, second color not using boundary section) that change based on the timing offset. This visual color differentiation allows operators to easily identify and correct positioning errors without requiring advanced skills.

Inventive Principle:

Principle #32Color changes

Solution Approach 2:

The adjustment image is segmented into distinct color regions corresponding to different timing conditions. The first region uses the boundary section while the second region does not, creating clear visual segments that indicate timing offset status.

Inventive Principle:

Principle #1Segmentation

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 solution allows for accurate correction of index signal offsets, preventing color mixture and enhancing adjustment accuracy by using a geometric pattern-based adjustment image to facilitate manual adjustment, thereby stabilizing image quality.

Implementation Method 1

a light source unit that emits light

Methodology Applied

Scientific EffectLight emission: Light

Implementation Method 2

a wheel that includes a first area and a second area as areas for adjusting color components of the light emitted from the light source unit

Methodology Applied

Scientific EffectOptical separation: Reflection

Data Source

PatentUS10419729B2Adjustment image generating device, adjustment image generating method, and storage medium having program stored therein

Publication Date: 2019.09.17 CASIO COMPUTER CO LTD

AI summary

An adjustment image for facilitating adjustment is generated. An image display device according to an embodiment of the invention includes a semiconductor laser, a wheel, an adjustment image generating unit, and a projection unit. The semiconductor laser emits light. The wheel includes a first area and a second area as areas for adjusting color components of the light emitted from the semiconductor laser. The adjustment image generating unit generates an adjustment image in which a first color formed using a section adjacent to a boundary between the first area and the second area and a second color formed not using the section adjacent to the boundary and having color components close to the first color are arranged adjacent to each other. The projection unit projects the adjustment image generated by the adjustment image generating unit.