US 7,487,781 B2
Energy converter and method of making the same
Makoto Horiuchi, Sakurai (Japan); Mitsuhiko Kimoto, Nara (Japan); Kazuaki Ohkubo, Takatsuki (Japan); Yuriko Kaneko, Nara (Japan); and Mika Sakaue, Hirakata (Japan)
Assigned to Panasonic Corporation, Kadoma (Japan)
Appl. No. 10/541,924
PCT Filed Nov. 08, 2004, PCT No. PCT/JP2004/016520
§ 371(c)(1), (2), (4) Date Jul. 11, 2005,
PCT Pub. No. WO2005/052987, PCT Pub. Date Jun. 09, 2005.
Claims priority of application No. 2003-393600 (JP), filed on Nov. 25, 2003.
Prior Publication US 2006/0132014 A1, Jun. 22, 2006
Int. Cl. H01J 1/02 (2006.01); H01J 61/52 (2006.01); H01K 1/58 (2006.01)
U.S. Cl. 131—38  [313/11; 313/37; 313/45; 313/578; 313/315; 313/316; 313/333; 313/335; 313/343; 313/350] 13 Claims
OG exemplary drawing
 
1. An energy converter comprising:
a heat source for emitting electromagnetic radiations; and
a radiation cut portion for cutting down infrared radiations, of which the wavelengths are longer than a predetermined wavelength,
wherein the radiation cut portion is a woven or knitted mesh of metal wires with at least portions of the metal wires being bended to form an intertwined structure having openings, the openings of the woven or knitted mesh having an aperture size that is smaller than the predetermined wavelength.