Improving the lifespan of light bulbs is an eternal challenge! Proposing filament shapes that can achieve longer lifespans.
This document explains "improving bulb lifespan through pitch control." It includes a detailed investigation of "defective bulbs" in 12V21W automotive bulbs and tests on filament design related to "lifespan improvement through variable pitch." Our company conducts filament analysis and proposes filament shapes that can achieve longer lifespans based on these insights. [Contents] ■ Investigation of defective bulbs ■ Tests on lifespan improvement through variable pitch *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Our company was founded in 1928 and has been engaged in the manufacturing and sales of various lighting components, including tungsten filaments. We specialize in the production of filaments for automotive bulbs, and as a result of providing to bulb manufacturers over many years, we have received high recognition as one of the largest specialized manufacturers in this field in Japan. Currently, in addition to bulbs, our products are utilized in a wide range of fields, including various electronic tubes, electron guns, sensors, and heater components.