RADIATION GRILL APPARATUS
A radiation grill apparatus is discussed including a housing having opposing sides and a food support member on said housing. The housing includes an infrared radiation source arrangement along one of the opposing sides only and arranged to direct a portion of the infrared radiation onto the food support member such as to create a heat distribution across the food support member; a drip collection member facing the food support member; and a reflector arrangement arranged to redirect a further portion of the infrared radiation onto the food support member such as to improve the homogeneity of the heat distribution. The reflector arrangement includes a plurality of reflector portions arranged to redirect respective parts of the further portion of infrared radiation towards different regions of the food support member.
1 . A radiation grill apparatus comprising a housing having opposing sides and a food support member on said housing, the housing comprising:
an infrared radiation source arrangement along one of said opposing sides and arranged to direct a portion of infrared radiation onto the food support member such as to create a heat distribution across the food support member;
a drip collection member facing the food support member; and
a reflector arrangement arranged to redirect a further portion of said infrared radiation onto the food support member; wherein,
the reflector arrangement comprises a first reflector arranged to a first redirect part of said further portion of the infrared radiation towards an end region of the food support member distal to the infrared radiation source arrangement; and
the reflector arrangement further comprises a further reflector arranged adjacent to an end point of the first reflector distal to said food support member, said further reflector being arranged to a second redirect part of said further portion of the infrared radiation towards a central region of the food support member.
2 . The radiation grill apparatus of claim 1 , wherein the reflector arrangement is dimensioned such that the drip collection member is shielded from direct exposure to the infrared radiation by the reflector arrangement.
3 . The radiation grill apparatus of claim 1 , wherein the reflector arrangement is dimensioned such that the reflector arrangement does not interfere with drip collection by said drip collection member.
4 . The radiation grill apparatus of claim 1 , wherein the first reflector is parabolic which has a shape defined relative to an axis extending through the infrared radiation source arrangement and an end point of the food support member distal to said infrared radiation source arrangement.
5 . The radiation grill apparatus of claim 4 , wherein said shape obeys the equation y 2 =2 p*x, in which x is the axis extending through the infrared radiation source arrangement and the end point of the food support member distal to said infrared radiation source arrangement, y is an axis perpendicular to said x-axis, and p is a constant defining an aperture of the first parabolic reflector.
6 . The radiation grill apparatus of claim 4 , wherein the first parabolic-reflector is dimensioned such that an end point of the first parabolic reflector proximal to the food support member does not block direct illumination by the infrared radiation source arrangement of any part of a major surface of the food support member facing the infrared radiation source arrangement.
7 . The radiation grill apparatus of claim 1 , wherein the further reflector is parabolic which has a shape obeying the equation y′ 2 =2 p′*x′, in which x′ is an axis extending through the infrared radiation source arrangement and a point of minimum intensity of the heat distribution across the food support member produced by the infrared radiation source arrangement and the first reflector, y′ is an axis perpendicular to said x′-axis, and p′ is a constant defining an aperture of the further parabolic reflector.
8 . The radiation grill apparatus of claim 7 , wherein the further parabolic reflector is dimensioned such as to block direct illumination of the drip collection member by the infrared radiation source arrangement.
9 . The radiation grill apparatus of claim 1 , wherein the reflector arrangement further comprises a planar mirror arranged to a third redirect part of said further portion of the infrared radiation towards an end region of the food support member proximal to the infrared radiation source arrangement.
10 . The radiation grill apparatus of claim 9 , wherein the planar mirror is arranged such that the further reflector is located in between the first reflector and the planar mirror.
11 . The radiation grill apparatus of claim 1 , wherein the infrared radiation source arrangement comprises one or more discrete infrared radiation sources.
12 . The radiation grill apparatus of claim 1 , wherein the housing further comprises a cavity housing the infrared radiation source arrangement and the reflector arrangement arranged around part of said infrared radiation source arrangement.
13 . The radiation grill apparatus of claim 1 , wherein the reflector arrangement comprises a plurality of reflector portions.
14 . The radiation grill apparatus of claim 13 , wherein the plurality of reflector portions are discrete reflector elements.
15 . The radiation grill apparatus of claim 1 , wherein a degree of curvature of the first reflector is in a range of ⅛*1 to ⅜*1, where l is the width of the food support member.