Semiconductor light source device
US7525191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Apr 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/19107
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A semiconductor light source device, for enabling to cool LED elements driven with short pulses, effectively, and also being cheaply producible without increasing the number of pats thereof, comprising a plural number of light emitting diode chips 202 on a heat diffusion plate 201, and Peltier elements 208, as being thermoelectric cooling elements, for cooling the plural number of light emitting diode chips 202, wherein a pair of members 208(n) and 2008(p), building up the Peltier element for cooling each the light emitting diode chip, are electrically connected on each of the light emitting diode chip through bumps 207, so as to form said light emitting diode chip and the Peltier element as a unit on the heat diffusion plate, respectively, and thereby moving heat generation within each of the light emitting diode chips, directly, into the heat diffusion plate and/or a heat radiation plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.