Rugged Lighting Cube With Waterproof USB Sealing and Focused Optics

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Solution Overview

Problem

Existing lighting devices, particularly those with USB charging interfaces, face issues with waterproofing, leading to short circuits when used underwater, and light fill technologies result in scattered light wastage outside the shooting angle in photography.

Innovation Solution

A rugged outdoor lighting assembly with a conductive sealant-filled USB charging interface for enhanced waterproofing and a light-emitting component combined with a diffuser and condenser lens to concentrate light effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If a USB charging interface is provided on the lamp for external power supply charging, then the underwater operating time can be extended, but the USB interface cannot be completely sealed, leading to water leakage and short circuit when working underwater

Engineering Contradiction:
Improveunderwater operating timeVSAvoidwaterproof performance
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

A waterproof cover is introduced as an intermediary component that seals the USB charging interface when not in use. The cover includes a waterproof O-ring that creates a water-tight seal around the USB connector, preventing water from entering the internal circuitry while allowing charging functionality when needed.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The USB charging interface is segmented from the main lamp body through a removable waterproof cover design. This allows the charging port to be isolated and sealed independently from the rest of the waterproof housing, enabling the lamp to maintain its IP68 waterproof rating while providing USB charging capability.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If light filling equipment uses scattered light for illumination, then the lighting coverage area is increased, but light is wasted outside the shooting angle, reducing lighting efficiency

Engineering Contradiction:
Improvelighting coverage areaVSAvoidlight wastage
Core Design Contradiction:
Area of stationary objectVSLoss of energy

Solution Approach 1:

The lighting system uses different optical components for different regions of the light output. A condenser lens is positioned close to the LED to create a concentrated, directional beam for the central shooting angle, while a diffuser is positioned further away to provide softer, scattered light for broader coverage areas, optimizing light distribution for both photography and general illumination.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent transitions from a single-point light source to a linear light source configuration. The LED is mounted such that its light output is distributed along a linear path, creating a plane of illumination rather than a point source. This dimensional change allows the light to cover both the shooting angle and surrounding areas more efficiently.

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

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 provides a waterproof lighting assembly capable of producing over 1000 lumens with improved battery life and focused light distribution, reducing light wastage and ensuring reliable underwater operation.

Implementation Method 1

a conductive sealant filled in the gap between the USB charging interface and the circuit board. The existence of the conductive sealant of the utility model eliminates the gap between the USB charging interface and the circuit board, so that the water cannot penetrate into the circuit board

Methodology Applied
Scientific EffectSealing:

Implementation Method 2

the light of the light filling device is a wide range of scattered, and cannot be completely gathered in the light photography camera shooting angle, resulting in a waste of light outside the shooting angle

Methodology Applied
Scientific EffectLight concentration: Lens

Data Source

PatentUS11988343B2Rugged all purpose lighting cube
Publication Date: 2024.05.21 LOGITECH EUROPE SA
  • US11988343B2 patent drawing
  • US11988343B2 patent drawing
  • US11988343B2 patent drawing

AI summary

The disclosure generally relates to generating lighting in an efficient way while in the outdoors. The designs are meant to maximize the amount of light generated, by the smallest assembly that is rugged to use in general outdoor activities and water sports. Further designs are related to hands-free mounting capabilities on outdoor equipment such as bikes, surfboards, snowboards and other similar equipment. Additional features include various filters, waterproofing, recharging or lighting differences which provide greater visual or photographic advantages to the user.