Glowing Beads

NEW CODES ADDED 22.5.2024

SEE ALL URANIUM BEADS FROM THE ARTICLE - CLICK!

There are several types of glowing Czech glass beads: glows under UV (blacklight), neon coated and glows after “charge” under the sun. All of them are safe for health.

Glows under UV (blacklight) - Uranium glass

The use of uranium to obtain the yellow-green to green color of glass has been known and documented in Bohemia for more than 160 years. Uranium glass fluoresces most intensely under the influence of long-wave ultraviolet radiation. The optimal wavelength is around 360 nm. Short-wave UV-radiation, on the other hand, will hardly force it to fluoresce.

The main color of uranium glass is governed by the presence of uranium compounds or by their character. Greenish, yellowish or even brownish glasses are known. Some have a pinkish color.
Yellow colored glass contains more uranium than greenish glass. Green glass may also contain copper or chromium. Yellow uranium glass therefore fluoresces more and more intensely than green. Copper can also reduce fluorescence, as can lead admixtures, which are otherwise the norm in fine glasses.

Insert one of the glass color codes below to search:

Yellow

• 17011
• 80100 (not very intense glow, crystals mainly does not glow)
• 80120
• 80130
• 81000
• 82000
• 82100
• 84000
• 88035

Green / Yellow

• 50800 (not always glow)
• 50810
• 50820
• 52000
• 52010
• 52020
• 54200
• 57801

Turquiose

• 61100
• 06628
• 56018 (only turquoise, green does not glow)
• 56206
• 56216
• 56218
• 52020 (usually glow)

Pink / Beige

• 70990
• 77553 (only some beads, where blue base is well seen)

Blue

• 07524
• 37114 (hard to say, seems to glow blue, see photo below)
• 57601
• 87301
• 87311

Other colors:

• 83500
• 86007
• 88035 (glow under UV + chargeable)
• 46470 (pink lined)

Glows under UV (blacklight) - Neon coatings

The neon coating is a special dye containing UV active fluorescent pigment. The coating is applied on white beads to ensure color brightness.

The dye is applied in several thin layers fixed by heat. This provides high chemical and mechanical durability. The beads are characterized by high resistance to water, steam, alcohol, cosmetics, sweat, etc. 

These colours are intense and very bright, that even seems glowing under daylight. 

Insert one of the glass color codes below to search:

25121 - yellow

25143 - yellow

25122 - orange

25123 - pink

25144 - cherry pink

25125 - violet

25145 - dark violet orchid

25126 - dark blue

25127 - blue

25128 - dark green petrol

25124 - green

25142 - green yellow lime

28501 - orange-yellow

Glows without the lamp - phosphorescent glass

These beads also shows luminiscence, however, they do not require the light source to glow for a while. The glass contents special addition, which absorbs the light and reemits it at a longer wavelength. Unlike fluorescence, a phosphorescent material does not immediately reemit the radiation it absorbs. Instead, a phosphorescent material absorbs some of the radiation energy and reemits it for a much longer time after the radiation source is removed.

Glow intensity depends on strength of the light source and time of charging. However, the beads would not glow for a ling time. 

Search for glow in the dark to find all these beads currently available.

 

Wiki

Luminiscence - the effect when something glows, but it is not a lamp or sun. 

• Fluorescence - type of luminiscence, when the glow stops immediately without light source (turn off UV lamp, beads does not glow)
• Phosphorescence - type of luminiscence, when the object glows for sometime without the source. It "charges", and then stops glow gradually.