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[20] [21] The shoe featured a large pumping button on the tongue (larger than the Reebok Pump's) and a switch on top that deflated the shoe when pushed to the right. [22] LA Lights: One of LA Gear's most successful lines, which came out in 1992. LA Gear launched its kids line of LA Lights at Foot Locker and Kids Foot Locker at $50 retail.
A typical light-up shoe for adults, where the LED ribbon is inside a translucent sole. Light-up shoes or LED shoes are footwear that have built-in light-emitting diodes, usually in the sole of the shoe. These specialized shoes may be used at parties, festivals, raves and to increase visibility. [1] Light-up shoes first became available in 1992.
The Mondopoint shoe length system is widely used in the sports industry to size athletic shoes, ski boots, skates, and pointe ballet shoes; it was also adopted as the primary shoe sizing system in the Soviet Union, [18] Russia, [19] East Germany, China, [20] Japan, Taiwan, and South Korea, and as an optional system in the United Kingdom, [21 ...
This produced a commercially packaged white light giving 65 lm/W at 20 mA, becoming the brightest white LED commercially available at the time, and more than four times as efficient as standard incandescents. In 2006, they demonstrated a prototype with a record white LED luminous efficacy of 131 lm/W at 20 mA.
In photometry, luminous flux or luminous power [citation needed] is the measure of the perceived power of light. It differs from radiant flux , the measure of the total power of electromagnetic radiation (including infrared , ultraviolet , and visible light), in that luminous flux is adjusted to reflect the varying sensitivity of the human eye ...
The lumen (symbol: lm) is the unit of luminous flux, a measure of the perceived power of visible light emitted by a source, in the International System of Units (SI). ). Luminous flux differs from power (radiant flux), which encompasses all electromagnetic waves emitted, including non-visible ones such as thermal radiation
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