Illumination Color Changer for Measuring Device State Indication

Solution Overview

Problem

Conventional measuring devices face difficulties in displaying information effectively, especially in low-light conditions, due to the limitations of backlights, which can make it hard for users to determine the measurement mode or operation state without reading the display.

Innovation Solution

Incorporating an illumination color changer that adjusts the color of the backlight based on the measurement mode, operation state, or usage conditions, allowing users to identify the mode or state through color cues without relying on display text or icons.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a backlight is used to illuminate the display device, then the display becomes visible in dark places, but it remains difficult to read information under certain conditions such as poor eyesight

Engineering Contradiction:
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent applies color changes by using an illumination color changer that emits different colored lights (e.g., red, green, blue) based on the measurement mode or operation state. This allows users to quickly identify the current state through color perception rather than reading text or icons, thereby improving readability reliability for users with poor eyesight while maintaining display visibility through backlight illumination.

Inventive Principle:
Principle #32Color changes

2Illumination intensity

If the backlight emits light to the display device, then information is easier to read in dark places, but additional information about measurement state is lost

Engineering Contradiction:
Core Design Contradiction:
Illumination intensityVSLoss of information

Solution Approach 1:

The illumination color changer encodes measurement state information into the color of the emitted light. Different colors represent different measurement modes or operation states, allowing the system to convey additional information without requiring users to read text or icons on the display, thus preventing information loss while maintaining visibility.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The illumination color changer acts as an intermediary that translates measurement state information into visual color cues. This intermediary component bridges the gap between the display system and the user, providing intuitive state indication through color perception rather than requiring direct reading of display content.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Illumination intensity

If the backlight is used for illumination, then the display is visible, but the device complexity increases due to additional components

Engineering Contradiction:
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The illumination color changer serves multiple functions: it provides display illumination like a traditional backlight, conveys measurement state information through color changes, and indicates operation modes. By combining these functions into a single component, the system avoids the complexity of separate illumination and information display systems while maintaining visibility and providing additional state information.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables users to easily recognize the measurement mode or operation state by color changes, improving usability and accuracy in various conditions, including low-light environments.

Implementation Method 1

an illumination device configured to emit a light to the display device

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Implementation Method 2

an illumination color changer configured to change a color of the light in accordance with a measurement state

Methodology Applied
Scientific EffectColor changing: Electrochromism

Data Source

PatentUS12148286B2Precision length measuring device
Publication Date: 2024.11.19
  • US12148286B2 patent drawing
  • US12148286B2 patent drawing
  • US12148286B2 patent drawing

AI summary

A measuring device includes a measured value obtainer, a display device configured to display a measured value obtained by the measured value obtainer, an illumination device configured to emit a light to the display device, a measurement state obtainer configured to obtain information regarding a state in which a measured value is obtained by the measured value obtainer, and an illumination color changer configured to change a color of the light in accordance with a measurement state obtained by the measurement state obtainer.