The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2009
Filed:
Apr. 07, 2006
Norio Nakazato, Inzai, JP;
Kimihiko Sudo, Hitachinaka, JP;
Norio Nakazato, Inzai, JP;
Kimihiko Sudo, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
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 chipson a heat diffusion plate, and Peltier elements, as being thermoelectric cooling elements, for cooling the plural number of light emitting diode chips, wherein a pair of members() and(), 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, 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.