Invention Grant
- Patent Title: LED light bulb with symmetrical filament
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Application No.: US16505732Application Date: 2019-08-28
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Publication No.: US10677396B2Publication Date: 2020-06-09
- Inventor: Tao Jiang , Yi-Ching Chen
- Applicant: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
- Applicant Address: CN Jiaxing, Zhejiang
- Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
- Current Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
- Current Assignee Address: CN Jiaxing, Zhejiang
- Agent Simon Kuang Lu
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@77fe6862 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7466f97 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@21da6848 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3af46e3 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@796838c com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@33987e3e com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4172d82d com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@389306be com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@b2a78c3 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7b338e16 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2cd792ed com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@c51d73f com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@54654a16 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@33413db2 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@231181cd com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@21fb42bf com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5fb0896c com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@65268385 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4a967905 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@31833452 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6aa320e7 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3bc8ac9d com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@42efb4b0 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6ae6291b com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@19b188b8 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@67e36357 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5816012f com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@36355c7 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1602f95b com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6a07d917 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2f0a201
- Main IPC: F21K9/232
- IPC: F21K9/232 ; H05B45/00
Abstract:
An LED light bulb includes a bulb shell, a bulb base, two conductive supports, a stem, and an LED filament. The bulb base is connected with the bulb shell. The two conductive supports are disposed in the bulb shell. The stem extends from the bulb base to inside of the bulb shell. The LED filament includes a plurality of LED chips and two conductive electrodes. The LED chips are arranged in an array along an elongated direction of the LED filament. The two conductive electrodes are respectively disposed at two ends of the LED filament and connected to the LED chips. The two conductive electrodes are respectively connected to the two conductive supports. The LED filament is curled to satisfy symmetry characteristics. Surface roughness of segments of a portion of the LED filament in different quadrants in a top view or in a side view is in line symmetry or in point symmetry.
Public/Granted literature
- US20190368666A1 LED LIGHT BULB WITH SYMMETRICAL FILAMENT Public/Granted day:2019-12-05
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