LED lighting applications to continue to expand, and the market segment is unlimited! Jewelry lighting is also a market with huge potential! With the world's increasing economy, The jewelry industry is developing rapidly, makes the vast market potential is evident to all. Jewelry retail display for retail stores and showrooms is also an emerging industry. We can not ignore The importance of jewelry retail display design.
An excellent retail display can fully convey the brand, style, culture, and jewelry concept to consumers. Moreover, to complete the perfect combination of sales and brand culture and genuinely reflect the value of the jewelry. And jewelry lighting is a critical and essential part of retail jewelry display. The following introduces the basic principles of jewelry lighting and standard lamps.
The color emitted by the light source itself is the "light source color", and the color reflected by the jewelry illuminated by the light source is generally called the "surface color". Except for some gems with fluorescent or phosphorescent effects, the jewelry itself does not emit light.
Although natural light is an ideal light source for appreciating natural gemstones, in actual sales, due to site restrictions, businesses often choose artificial lights for lighting. How to use the appropriate light source to show the value of jewelry? This is the purpose of special jewelry lighting.
When decorating jewelry storefronts or jewelry kiosks in malls, some jewelers generally only pay attention to the brightness of the light and only consider whether the storefront can feel gorgeous and magnificent but ignore the proportional distribution of light sources. And this results in no difference between the main and non-subjects of the sales.
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Do we need an authentic performance or a distorted performance for the product to achieve a more stunning effect? There is an inevitable controversy in positioning the lighting of gems and jade in the jewelry store. Some people think that the treasure must be displayed in its original flavor, including the actual color of its flaws. Another view held is that display products do not need to be as demanding as in a testing laboratory.
Generally speaking, the lighting performance of jewelry products can appropriately improve the look and feel of some gems, but the difference should not be too far. Avoid the same appearance under the lighting demonstration in the window display & furniture, and take it out under the general lighting to be the next level. It is also necessary to avoid too much difference between the performance of the lights in the store. And prevent the grade of the jewelry in the professional evaluation.
Jewelry store lighting is relatively professional than general commercial retail store lighting, and the jewelry lighting system is more specialized. In the design, we should use different specifications of lighting systems according to separate jewelry characteristics. Therefore, we must consider the principles that the basic seven lighting system should follow when purchasing jewelry lamps.
To protect the rights and interests of consumers, the international and domestic jewelry circles have uniformly evaluated the color of natural gemstones under uniform conditions, so there are specific requirements for the light source of gemstone lighting in jewelry stores.
The earliest commercial lighting (glass cabinets) used full-spectrum incandescent lamps with good color rendering. Generally speaking, considered to be the most suitable light source.
But since 1996, tests have begun to find that removing the interference spectrum of 15nm and 580nm can make jewelry more displayable. Taiwan's jewelry-specific lamps use a unique reflective coating to achieve this. Therefore, After the LEDs used in jewelry lighting and select top-quality spectrum, The lighting is tailored to different jewelry types to achieve better results.
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Diamonds There are very few colored diamonds in nature, and in general, they are evaluated separately. The uniform grading of diamond color is mainly for most white diamonds with slight yellowish color and primarily considers the visibility of the yellow component in the diamond.
The traditional diamond color grading is usually based on the color temperature of 4800K of sunlight from the clear sky in the north from morning to afternoon.
Currently, diamond grading is mainly carried out in laboratories, and the colorimetric method developed by the American Jewellery Institute chiefly internationally. The colorimetric method compares with the standard color standard under the diamond lamp with the traditional light source (color temperature 5000K-5500K).
If the color of the diamond is the same as the standard sample, the color grade is the same as the standard sample. Among them, the color grade of diamonds is at a lower level. Appropriate intense light irradiation will make the diamond shinier because the pavilion of the diamond has 25 faces, and all the light irradiated on the faces will be reflected from the tabletop. The solid white reflected light will improve the color level of the diamond.
The light source for diamond identification is the stable north-facing skylight from Northern Europe in the international standard. Therefore, the required light source has a 6500K (D65) color temperature and a color rendering index Ra≥95. Simultaneously, to reflect the "fire" of the diamond, it is also required that the light source illuminating the diamond is approximately the entire spectrum.
Simultaneously, the appropriate intensity of light in commercial lighting will upgrade the diamond's grade, reception area, making it more dazzling in customers' eyes. (D65 light source is a white light source with a color temperature of 6500K. It was initially one of the internationally recognized standard light source color temperatures, but a D50 light source gradually replaces the D65 light source.) And D65 authoritative light source The cost is prohibitive and cannot be used in shopping mall lighting. Therefore, we choose to use the color temperature between 4500-5000K and the illuminance value Eh≥4800lx. The light source with color temperature (including 5000K or 6500K) and color rendering index Ra>90% is called a definitive light source. )
There are many kinds of colored gemstones, and the color of the exact gemstone is also vibrant. Observe the color of colored gemstones in a low sunlight color temperature environment. The light is more yellowish, which will increase the warm color gems such as red, purple, yellow, and yellow-green—the color level. Under the intense light at noon, observe the colored gems colored by chromium and iron. Gemstones with chromium elements, such as rubies and emeralds, will emit red fluorescence under the sun's ultraviolet rays, which will make the colors of rubies and emeralds intense and bright.
On the contrary, iron-induced red garnet cannot produce fluorescence, but because iron ions have a strong absorption effect on light, the gem's color becomes darker. Only by understanding the cause of color in jewelry can the desired band and spectral distribution be determined. Such as sapphire lighting, the spectrum selection should be in the 600nm-700nm spectral band.
More than 80% of the world's jadeite comes from Myanmar. Therefore, the international standard requires the sky from 10 am to 12 am on the summer solstice without clouds as the standard light source. Since jadeite is colored by iron and chromium, the species and water of jadeite have a significant influence on the judgment of jadeite's grade, so different light spectrums should be used for lighting. Ordinary jadeite can take a color temperature of about 3200K, biased towards red and yellow light. We can use A continuous spectrum with a color temperature of 2800K—3200K, but it isn't easy to highlight the authentic high-grade jadeite under such a color temperature condition. The color temperature of high-grade jadeite needs to be 4500K-5500K, and the color rendering requirement is Ra>90. Use a light source with a more comprehensive spectral range.
The spectral reflectance of the gold surface is at 500nm, the reflectance is only 50%, and at 60nm, the reflectivity can reach 92%. Therefore, when setting the spectral distribution of the illumination source, you can choose a more significant value from 600nm to 650n. The color temperature of the golden lighting source is 2800K, and the illuminance value should be Eh≥2000lx.
Compared with display lighting, jewelry display lighting is more professional and systematic. In jewelry display, display cabinets generally use partial lighting, called accent lighting, which is one of the categories of space display lighting. The fundamental purpose is to highlight exhibits. The jewelry lighting is determined according to the type, shape, and display method of the exhibition. The brightness of the local lighting is 3~5 times stronger than that of the essential lighting to strengthen the transmission of exhibit information and highlight the gloss, texture, and material of the exhibits; display of different light colors, the particularity of various exhibits, and always keep in mind the proper Protection of displays.
In the past, fluorescent tubes were the light source that jewelers used when jewelry identification and purchase. They were only suitable for the essential lighting in the store. Now it has gradually withdrawn from the stage during the decoration of the jewelry store.
Tungsten halogen lamps are small and easy to control, but they have low luminous efficiency and a short lifespan. Its color temperature is low, and the light is yellowish, which easily distorts the color of jewelry, makes it perfect for gold display lighting. Because of its low light efficiency and poor chromaticity, halogen lamps can only used to accent lighting. Also, because the light source is very close to the jewelry, thermal radiation can easily make jewelry aging and discolored. Therefore, In the practical jewelry retail display, halogen lamps are only used in a small window display showcase lighting.
Metal halide lamps have good color rendering, high luminous efficiency, and long life. In the old jewelry display lighting, metal halide lamps have always been the first choice. It requires sufficient lighting and penetration. Generally speaking, it is bright.
However, metal halide lamps also have defects, high heat, and power consumption. In recent years, the metal halide lamp has changed its prejudice against it in the past. It is an energy-saving and environmentally friendly light source that is strongly advocated internationally. It is also a mainstream product for essential lighting in the jewelry industry. It is suitable for being placed on high ceilings or mounted on light strips.
The vigorous development of the jewelry industry in China has promoted the continuous emergence of domestic jewelry stores. LED light display technology has also continued to mature, and the constant expansion of commercial applications has enabled the development of LED jewelry lighting systems. The jewelry lighting system is more specialized than general store lighting. It requires the light of lamps to illuminate the color of jewelry. At the same time, it can reduce heat. However, the traditional metal halide lamps can no longer meet the requirements of business people in jewelry lighting.
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The LED jewelry light solves the above problems. The LED light source used in the jewelry light is cold, and the light emitted does not have any heat. Simultaneously, when the LED jewelry lamp is working, the heat generated during the electro-optical conversion process is much smaller than that of the traditional metal halide lamp. Moreover, the light source's light is determined by the wavelength, so the light does not contain ultraviolet and infrared, which will not cause significant damage to the jewelry. Another point is that the color rendering of LED jewelry lights is very high, the light color is pure, and it illuminates the color of jewelry.
Classification of LED jewelry lights:
The advantages of arc-shaped LED jewelry lights: adjustable light-emitting angle, convenient installation, and customized length according to actual use requirements, etc. Suitable for jewelry showcase lighting and cabinet lighting. The arc-shaped LED jewelry cabinet light bar is ideal for the contour lighting of the arc-shaped jewelry showcase.
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