Gemstone Grading Lamp with Hinged Lid and Diffuser
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Solution Overview
Problem
Current technologies lack effective instruments for accurately assessing and grading the color of diamonds, which is crucial for determining their value, as they fail to improve color recognition and grading beyond traditional methods.
Innovation Solution
A grading lamp designed for gemstones, featuring a base with upstanding walls, a hinged lid, and a tray for color reference stones, utilizing natural daylight and ultraviolet light behind a diffusing filter to provide controlled lighting for improved color assessment and fluorescence identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional lighting methods are used for diamond grading, then the device complexity is low, but the measurement precision of color grading is insufficient
Solution Approach 1:
The lighting system is segmented into multiple independent light sources (natural daylight LED, UV LED, and amber LED) that can be individually controlled and selected. Each light source serves a specific function in the diamond grading process, allowing operators to choose the appropriate lighting condition for different grading requirements without requiring a complex integrated system.
Solution Approach 2:
The grading lamp integrates multiple functions into a single device: it provides natural daylight simulation for color grading, UV light for fluorescence detection, and amber light for enhanced color contrast. The hinged lid design with diffusing filter serves both as a light shield and a viewing chamber, making the device universally applicable for various diamond assessment needs without requiring multiple separate instruments.
2Measurement precision
If ambient light is present during grading, then the ease of operation is improved, but the measurement precision of color assessment deteriorates
Solution Approach 1:
The harmful ambient light is extracted and isolated from the grading process by using a hinged lid that can be closed to block external light sources. The lid creates a controlled light environment where only the intended light sources (natural daylight LED, UV LED, or amber LED) illuminate the diamond, ensuring accurate color assessment without interference from variable ambient lighting conditions.
Solution Approach 2:
A light diffusing filter is introduced as an intermediary between the LED light sources and the diamond being graded. This diffuser evenly distributes the light across the viewing area, eliminating harsh shadows and hot spots, while the hinged lid acts as an intermediary barrier that controls ambient light entry. These intermediary elements mediate between the light sources and the diamond to create optimal grading conditions.
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
Enhances operator technique by mitigating ambient light and providing direct light for precise color grading and fluorescence analysis, improving the accuracy of diamond color evaluation.
Implementation Method 1
natural daylight and ultraviolet light behind a light diffusing filter
Implementation Method 2
natural daylight and ultraviolet light behind a light diffusing filter
Data Source
AI summary
A grading lamp for gemstones is disclosed. In one embodiment, the grading lamp includes a base having an open top with a bottom wall bounded by upstanding front, rear, and side walls, and a lid hinged to the rear wall for swinging between open, intermediate, and closed positions relative to the base. The lid includes an interior lamp recess having natural and ultraviolet lights behind a light diffusing filter. A tray within the open top of the base holds color reference stones and a gem under examination. In the intermediate position, the grading lamp mitigates outside ambient light and provides direct light from either the natural or ultraviolet lights.