Method and instrument for measuring and displaying optical effect of diamond

A technology for optical effects and diamonds, applied in the field of measuring and displaying the optical effects of diamonds, can solve problems such as poor optical effects, and achieve the effect of improving quality and improving yield

Active Publication Date: 2010-06-30
CHOW TAI SENG JEWELRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the current table-style classification standard, some diamonds with poor optical effects are regarded as good diamonds, and diamonds with relatively good brightness and fire intensity are also regarded as poor diamonds, which shows the inadequacy of the traditional theory. Practical application (discrimination of diamond optical effect) has limitations

Method used

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  • Method and instrument for measuring and displaying optical effect of diamond
  • Method and instrument for measuring and displaying optical effect of diamond
  • Method and instrument for measuring and displaying optical effect of diamond

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Embodiment Construction

[0032] The method for measuring and demonstrating the optical effect of diamonds provided by the invention comprises the following steps:

[0033] Step 1: Control the light source by a computer or microprocessor, and emit light from different angles to irradiate the diamond sample;

[0034] Step 2: A camera or camera controlled by a computer or microprocessor collects images formed by light rays reflected from different angles of the diamond sample;

[0035] Step 3: Send the digitized information of the image to the display screen and computer, or to the display or microprocessor;

[0036] Step 4: Automatically identify and calculate the information of each image, and calculate the parameters of the diamond sample based on the information, including brightness, fire intensity, scintillation degree and symmetry degree.

[0037] Specifically include the following steps:

[0038] (1) Read out the gray value of each pixel of the captured image, and compare it with the set gray t...

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PUM

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Abstract

The invention provides a method and an instrument for measuring and displaying the optical effect of a diamond on the basis of the three-dimensional simulation research of the optical effect of the diamond, wherein the method comprises the following steps of: directly measuring the parameters including light reflection intensity, light reflection distribution, fire intensity, fire distribution, twinkling degree and the like of each image, counting, analyzing, then comparing with a preset threshold value, judging, giving the light level of a diamond sample and displaying a classified judgment result on a display or a computer display screen. The method and the instrument can be used for quality control, process improvement and yield improvement of a diamond processing trade, can be used for jewelry quality inspection, diamond cutting quality inspection of a retail trade and optical effect display of diamond ornaments and has good market prospects.

Description

technical field [0001] The invention relates to a method and an instrument for measuring and displaying the optical effects of diamonds. Background technique [0002] The beauty of a diamond is due to its strong reflection of incident light, which is divided into various effects such as luster, internal reflection, fire and scintillation, collectively referred to as brilliance. The quality of brightness is closely related to the process parameters and techniques of diamond cutting and grinding. [0003] In order to evaluate the quality of a diamond’s brilliance, it is traditionally identified by its cutting parameters, including the geometric parameters of the diamond shape, the degree of symmetry, and the degree of polishing. The rationale for these methods builds on Marcel Tolkowsky's two-dimensional studies of diamond optics, Diamond Design: A Study of the Reflection and Refraction of Light in a Diamond. In this way, the evaluation of diamond optical effects is realized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/87G01J1/00G01B11/00G06K9/78
Inventor 袁心强石斌刘萍萍徐昕
Owner CHOW TAI SENG JEWELRY CO LTD
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