LED Lamp
US6940101B2 · kind B2 · utility
47Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Nov 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
Abstract
An LED lamp includes at least one LED chip and a wavelength converting portion including a phosphor for transforming the emission of the LED chip into light having a longer wavelength than that of the emission. The LED lamp further includes filtering member. The filtering member is designed such that the spectral transmittance thereof becomes lower in at least a portion of the wavelength range of 550 nm to 605 nm than in the remaining visible radiation range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.