Detector Cover Light Guide for Omnidirectional Status Visibility
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Solution Overview
Problem
Existing disaster prevention apparatuses face visibility issues due to the indicator light being obstructed by the protector, necessitating strict installation direction management to ensure visibility, which is cumbersome.
Innovation Solution
A disaster prevention apparatus with an outer cover that includes thin portions and a detection element protector, where the thin portions are designed to transmit and refract light, allowing visibility from any direction, and optionally using a light guide to enhance visibility without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the indicator light is provided next to the protector protruding from the outer cover, then the light can be used to output information, but the protector blocks the field of vision depending on the viewing direction
Solution Approach 1:
The outer cover is segmented into multiple portions with different light blocking characteristics. Specifically, there are portions that block substantially all light and a thin portion that transmits at least some light. This segmentation allows light to be visible from multiple directions simultaneously, resolving the contradiction between providing adequate illumination and maintaining ease of installation without strict directional constraints.
Solution Approach 2:
The thin portion of the outer cover acts as an intermediary element between the light source and the external environment. It selectively transmits light while maintaining structural integrity, enabling the light to be visible from various angles without requiring the light to pass directly through the protector, thus eliminating the need for strict installation direction management.
2Illumination intensity
If the thin portion is made thin enough to transmit light, then visibility from any direction is achieved, but the structural strength may be compromised
Solution Approach 1:
Different portions of the outer cover are assigned different light transmission properties. The thin portion is specifically designed to transmit light while other portions maintain structural strength. This local differentiation allows the outer cover to simultaneously achieve visibility from any direction and maintain adequate structural integrity, as each region optimizes for its specific function.
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
Improves visibility of the light emitting state by ensuring light can be seen from any direction, reduces component count, and enhances design aesthetics.
Implementation Method 1
the thin portion being thin enough to be able to transmit at least some of light irradiated to the outer cover
Implementation Method 2
the detection element protector has a spectroscopic portion that refracts, disperses, or reflects the light from the light emitter
Implementation Method 3
the detection element protector has a spectroscopic portion that refracts, disperses, or reflects the light from the light emitter
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
There is provided a disaster prevention apparatus capable of improving visibility of a light emitting state. A detector 100 includes an outer cover 11; and a light emitter that outputs information by causing at least a part of the detector 100 to emit light. The light emitter causes at least a protective portion 12 to emit the light, the protective portion 12 accommodating a thermistor that detects a physical quantity of a detection target, and protruding from the outer cover 11. The protective portion 12 guides the light from the light emitter, and emits the light. The detector 100 further includes a light guide portion 111 formed in at least a part of the outer cover 11, and the light emitter causes the light guide portion 111 to emit the light. A light emitting surface of the light guide portion 111 extends from a front portion side of the outer cover 11 to a side portion side of the outer cover 11, and the light emitting surface of the light guide portion 111 has a linear shape when viewed from the front portion side of the outer cover 11.