RU2213985C1 - Directional radiation facility - Google Patents
Directional radiation facility Download PDFInfo
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- RU2213985C1 RU2213985C1 RU2002108779A RU2002108779A RU2213985C1 RU 2213985 C1 RU2213985 C1 RU 2213985C1 RU 2002108779 A RU2002108779 A RU 2002108779A RU 2002108779 A RU2002108779 A RU 2002108779A RU 2213985 C1 RU2213985 C1 RU 2213985C1
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- microrelief
- microlenses
- raster
- transmitting
- height
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- Optical Elements Other Than Lenses (AREA)
Abstract
FIELD: optical instrumentation, lighting engineering devices for vehicles. SUBSTANCE: directional radiation facility includes light source located at butt of light guide. Light guide comes in the form of wedge with transmitting and reflecting microreliefs on its surface. Output transmitting microrelief can be manufactured in the form of raster of focusing lenses or raster of diverging lenses or raster of crossing lenses. Reflecting microrelief can be fabricated in the form of raster of quasi-diffraction prisms. Technical result of invention consists in reduced power of light source, in improved maintainability of facility, in provision for formation of various directional patterns, for example, Z-shaped light boundary to diminish dazzling of drivers coming from opposite direction, reduced overall dimensions. EFFECT: improved functional characteristics of facility. 5 cl, 4 dwg
Description
Текст описания в факсимильном виде (см. графическую часть). Description text in facsimile form (see graphic part).
Claims (6)
где h - высота пропускающего микрорельефа;
(u, v) - декартовы координаты в плоскости выходного пропускающего микрорельефа с началом в его центре (-А/2≤u≤А/2, -В/2≤v≤В/2);
n - показатель преломления материала;
К=[А/а]+1, L=[B/b]+1, [x] - целая часть от х;
А и В - размеры выходного пропускающего микрорельефа;
a и b - размеры микролинз a = 2ftgθu/2, b = 2ftgθv/2;
f - фокусное расстояние микролинз;
θu, θv - углы рассеяния формируемой осветителем диаграммы направленности излучения;
m=1,2,3.... целое число;
λ - средняя длина волны источника света;
h0 - масштабная константа;
(uk, vl) - координаты центров микролинз, uk=-A/2+(k-0,5)a, vl=-B/2+(l-0,5)b;
k, l, i - индексы суммирования.2. The device according to claim 1, characterized in that the output transmitting microrelief is made in the form of a raster of focusing microlenses, the height and shape of the zones of which are determined by the expression
where h is the height of the transmitting microrelief;
(u, v) - Cartesian coordinates in the plane of the output transmitting microrelief with the beginning in its center (-A / 2≤u≤A / 2, -B / 2≤v≤B / 2);
n is the refractive index of the material;
K = [A / a] +1, L = [B / b] +1, [x] - the integer part of x;
A and B are the sizes of the output transmitting microrelief;
a and b are the sizes of microlenses a = 2ftgθ u / 2, b = 2ftgθ v / 2;
f is the focal length of microlenses;
θ u , θ v are the scattering angles of the radiation pattern generated by the illuminator;
m = 1,2,3 .... an integer;
λ is the average wavelength of the light source;
h 0 is the scaling constant;
(u k , v l ) are the coordinates of the centers of the microlenses, u k = -A / 2 + (k-0,5) a, v l = -B / 2 + (l-0,5) b;
k, l, i - summation indices.
где h - высота пропускающего микрорельефа;
(u, v) - декартовы координаты в плоскости выходного пропускающего микрорельефа с началом в его центре (-А/2≤u≤А/2, -В/2≤v≤В/2);
n - показатель преломления материала;
К=[А/а]+1, L=[B/b]+1, [x] - целая часть от х;
А и В - размеры выходного пропускающего микрорельефа;
а и b - размеры микролинз, a = 2ftgθu/2, b = 2ftgθv/2;
f - фокусное расстояние микролинз;
θu, θv - углы рассеяния формируемой осветителем диаграммы направленности излучения;
m=1,2,3....целое число;
λ - средняя длина волны источника света;
(uk, vl) - координаты центров микролинз, uk=-A/2+(k-0,5)a, vl=-B/2+(l-0,5)b,
k, l, i - индексы суммирования.3. The device according to claim 1, characterized in that the output transmitting microrelief is made in the form of a raster of scattering microlenses, the height of which and the shape of the zones are determined by the expression
where h is the height of the transmitting microrelief;
(u, v) - Cartesian coordinates in the plane of the output transmitting microrelief with the beginning in its center (-A / 2≤u≤A / 2, -B / 2≤v≤B / 2);
n is the refractive index of the material;
K = [A / a] +1, L = [B / b] +1, [x] - the integer part of x;
A and B are the sizes of the output transmitting microrelief;
a and b are the sizes of microlenses, a = 2ftgθ u / 2, b = 2ftgθ v / 2;
f is the focal length of microlenses;
θ u , θ v are the scattering angles of the radiation pattern generated by the illuminator;
m = 1,2,3 .... an integer;
λ is the average wavelength of the light source;
(u k , v l ) are the coordinates of the centers of the microlenses, u k = -A / 2 + (k-0,5) a, v l = -B / 2 + (l-0,5) b,
k, l, i - summation indices.
где h - высота пропускающего микрорельефа;
(u, v) - декартовы координаты в плоскости выходного пропускающего микрорельефа с началом в его центре (-А/2≤u≤А/2, -В/2≤v≤В/2);
n - показатель преломления материала;
К=[А/а]+1, L=[B/b]+1, [x] - целая часть от х;
А и В - размеры выходного пропускающего микрорельефа;
а и b - размеры микролинз;
fu = a/2tg(θu/2); fv = в/2tg(θv/2) - фокусные расстояния микролинз;
θu, θv - углы рассеяния формируемой осветителем диаграммы направленности излучения;
m=1,2,3.... целое число;
λ - средняя длина волны источника света;
h0 - масштабная константа;
(uk, vl) - координаты центров микролинз, uk=-А/2+(k-0,5)a, vl=-В/2+(l-0,5)а;
k, l, i - индексы суммирования.4. The device according to claim 1, characterized in that the output transmitting microrelief is made in the form of a raster of crossed microlenses, the height of which and the shape of the zones are determined by the expression
where h is the height of the transmitting microrelief;
(u, v) - Cartesian coordinates in the plane of the output transmitting microrelief with the beginning in its center (-A / 2≤u≤A / 2, -B / 2≤v≤B / 2);
n is the refractive index of the material;
K = [A / a] +1, L = [B / b] +1, [x] - the integer part of x;
A and B are the sizes of the output transmitting microrelief;
a and b are the sizes of microlenses;
f u = a / 2tg (θ u / 2); f v = v / 2tg (θ v / 2) - focal lengths of microlenses;
θ u , θ v are the scattering angles of the radiation pattern generated by the illuminator;
m = 1,2,3 .... an integer;
λ is the average wavelength of the light source;
h 0 is the scaling constant;
(u k , v l ) are the coordinates of the centers of the microlenses, u k = -A / 2 + (k-0.5) a, v l = -B / 2 + (l-0.5) a;
k, l, i - summation indices.
где h - высота пропускающего микрорельефа;
(u, v) - декартовы координаты в плоскости выходного пропускающего микрорельефа с началом в его центре (-А/2≤u≤А/2, -В/2≤v≤В/2);
n - показатель преломления материала;
K=[А/а]+1, L=[B/b]+1, [x] - целая часть от х;
А и В - размеры выходного пропускающего микрорельефа;
а и b - размеры микролинз;
fu = a/2tg(θu/2); fv = в/2tg(θv/2) - фокусные расстояния микролинз;
θu, θv - углы рассеяния формируемой осветителем диаграммы направленности излучения;
m=1, 2, 3 - целое число;
λ - средняя длина волны источника света;
(uk, vl) - координаты центров микролинз, uk=-А/2+(k-0,5)a, vl=-B/2+(l-0,5)a,
k, l, i - индексы суммирования.5. The device according to claim 1, characterized in that the output transmitting microrelief is made in the form of a raster of crossed scattering microlenses, the height of which and the shape of the zones are determined by the expression
where h is the height of the transmitting microrelief;
(u, v) - Cartesian coordinates in the plane of the output transmitting microrelief with the beginning in its center (-A / 2≤u≤A / 2, -B / 2≤v≤B / 2);
n is the refractive index of the material;
K = [A / a] +1, L = [B / b] +1, [x] - the integer part of x;
A and B are the sizes of the output transmitting microrelief;
a and b are the sizes of microlenses;
f u = a / 2tg (θ u / 2); f v = v / 2tg (θ v / 2) - focal lengths of microlenses;
θ u , θ v are the scattering angles of the radiation pattern generated by the illuminator;
m = 1, 2, 3 is an integer;
λ is the average wavelength of the light source;
(uk, v l ) are the coordinates of the centers of the microlenses, u k = -А / 2 + (k-0,5) a, v l = -B / 2 + (l-0,5) a,
k, l, i - summation indices.
где Н - высота отражающего микрорельефа;
(х, у) - декартовы координаты в плоскости отражающего микрорельефа с началом в ее центре (-С/2≤х≤С/2, -В/2≤у≤В/2);
M=C/d - количество квазидифракционных призм;
ε - угол наклона отражающего микрорельефа;
C=A/cos ε - длина отражающего микрорельефа;
В - ширина отражающего микрорельефа;
d - период растра;
хi=-С/2+(i-0,5)d - центр призм;
α=(45o-ε) - угол призмы;
а=[d(tgε-tgα)]/2(tgα+tgε) - параметр (|a|<d/2).н6. The device according to claim 1, characterized in that the reflecting microrelief is made in the form of a raster of quasi-diffraction prisms, the height and shape of the zones of which are determined by the expression
where H is the height of the reflecting microrelief;
(x, y) - Cartesian coordinates in the plane of the reflecting microrelief with the beginning in its center (-C / 2≤x≤C / 2, -B / 2≤y≤B / 2);
M = C / d is the number of quasidiffraction prisms;
ε is the angle of inclination of the reflecting microrelief;
C = A / cos ε is the length of the reflecting microrelief;
B is the width of the reflecting microrelief;
d is the raster period;
x i = -C / 2 + (i-0.5) d is the center of the prisms;
α = (45 o -ε) is the angle of the prism;
a = [d (tgε-tgα)] / 2 (tgα + tgε) is the parameter (| a | <d / 2).
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RU2002108779A RU2213985C1 (en) | 2002-04-05 | 2002-04-05 | Directional radiation facility |
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RU2002108779A RU2213985C1 (en) | 2002-04-05 | 2002-04-05 | Directional radiation facility |
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RU2213985C1 true RU2213985C1 (en) | 2003-10-10 |
RU2002108779A RU2002108779A (en) | 2004-03-20 |
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