RU2541632C1 - Method of concentrating light flux from light-emitting element - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: method includes forming, within the transparent body of a concentrator, light guide sectors, placing in each sector volumetric annular mirrors for double reflection of light flux coming from the radiation source. Uniform concentration of the light flux is generated by the curvature, focusing and defocusing of the mirrors. An intermediate thin annular mirror is used in the central sector.

EFFECT: generating uniform light flux in a given solid angle for a light flux concentrator of a point radiation source.

1 tbl, 12 dwg

Description

The invention relates to the field of lighting engineering and relates to methods for designing emitters with a uniform luminous flux in a given solid angle. In particular, the method is intended for intermediate docking of the radiation pattern of a high-power LED with the formation of a spherical radiation pattern of this LED.

Known LED shapers and LED optical nozzles do not provide a uniform light flux in a given solid angle.

The objective of the invention is to provide a uniform luminous flux at the input of the shaper of the spherical radiation pattern of the LED in a given solid angle.

The known method implemented in the device RU 2242778, "Device for compression-expansion of the optical beam", according to which to seal the luminous flux using two prisms with an intermediate mirror. This method does not allow the formation of a diverging compacted luminous flux from a powerful LED and suggests a cumbersome design.

The known method implemented in the device A.S. 402718, “Optical system of a searchlight with high-power tube lamps”, according to which a mirror system is used to seal the luminous flux. This method involves a bulky design, not intended to form a high-power LED diverging at a certain solid angle.

The closest solution to the problem is the method used in the device RU 2070683, "Device for lighting a vehicle", which uses a parabolic reflector and a focon that collects a system of optical fibers to seal the light flux. This method is not intended to form a high-power LED diverging at a certain solid angle, and the use of fiber-optic optical fibers for LEDs increases the cost of a possible solution to the problem with their application.

The proposed method allows to overcome this fundamental disadvantage.

EFFECT: luminous flux densification is achieved by the fact that to create a given solid angle of a uniform radiation flux from a light-emitting element in the volume of a transparent body, conditionally divided into sectors, volume mirrors are placed that convert an uneven luminous flux in each sector into a uniform one according to the corresponding compaction law by double reflection luminous flux from the light-emitting element, and in the central sector use an intermediate annular thin mirror placed along the path Light emission. When implemented in products together with spherical radiation shapers for high-power LEDs, the invention allows to replace incandescent bulbs with energy-saving LEDs in lamps and chandeliers without changing their designs.

According to the proposed method, first, in the cross section of the proposed transparent radiation body, the number of volume light guide sections of radiation, the size of the incoming radiation window and its distance from the point radiation source are set. In the exit window, the radii of the exit boundaries of the sections in the exit window are determined by the equality of the density of the light flux of the sections relative to the density of the light flux in the central section.

In sections of a transparent body, volumetric concentric optical fibers are formed, for rays emanating from a radiation source. Each section uses double specular reflection of the rays of the radiation source. The curvature of the volume mirrors of the optical fibers for each section is designed so that the incoming rays of the radiation source for each section, reflected from the mirrors, are uniformly sealed at the output of the seal in the area of each section. In the central section, an intermediate ring thin mirror is used, placed along the path of the rays of the radiation source.

Table 1 with a gradation of 5 ° in the section shows the data of h - values of the deviation of the amplitudes of the light intensity of the rays in the Lambert radiation pattern and S _i - the areas between them.

The method of compaction of the light flux of the light-emitting element is shown in the drawings, where:

figure 1 combined, in cross section shows the radiation pattern according to Lambert, revealing the radiation rays of the seal and docked to the seal ball driver of the radiation pattern of the LED.

Figure 2 shows the normalized distribution of rays (their focus and defocus) in each sector of the emitter at the output mirrors of the seal.

Figure 3 shows one of the options for constructing all the mirrors of the light flux seal.

Fig. 4 on an enlarged scale in the third sector of the seal shows a first example of the formation of the output mirror.

Fig. 5 on an enlarged scale in the third sector of the seal shows a second example of the formation of the output mirror.

Fig. 6 on an enlarged scale in the second sector of the seal shows a first example of the formation of double reflection of the mirrors.

Fig. 7 on an enlarged scale in the second sector of the seal shows a second example of the formation of double reflection of the mirrors.

On Fig in an enlarged scale in the second sector of the seal shows a third example of the formation of double reflection of the mirrors.

Fig. 9 on an enlarged scale in the central sector of the seal shows a first example of the formation of double reflection of mirrors using a thin annular intermediate mirror in the second sector.

Figure 10 shows, on an enlarged scale, in the central sector of the seal, a second example of the formation of double reflection of mirrors using a thin annular intermediate mirror in the second sector.

FIG. 11 shows, on an enlarged scale, in the central sector of the seal, a third example of mirror double reflection formation using a thin annular intermediate mirror in the third sector.

On Fig also in cross section shows a possible version of the lamp, "Yarylko", complete with a sealant and a spherical shaper 8 of the light flux.

The method is as follows. We assume that according to Lambert (Fig. 1), the radiation pattern 1 from a point source 2 bounded by plane 3 corresponds to circle 4 touching this plane 3. Suppose that this is a ball vessel 5 shown in cross section with an incompressible fluid corresponding to the radiated energy of this radiation source 2. Let this vessel 5 in a section (FIG. 1) be made with bulkheads 6 corresponding to radiation beams 7, with gradation, for example, in increments of α _i = 5 °, with an effective radiation exposure of 85 ° (FIG. 1). Let our concentric shaper 8 of spherical radiation with a minimum number of volumetric optical fibers 9 in the incoming window 10 require three concentric outputs 11, 12, 13 of the seal 14 with the same radiation-receiving area. Let the area of the central outlet 11 of the seal 14 equal

S ₀ = π · r ₀ ²

Then the area of the second exit is 12

S ₁ = π · (r ₁ ² -r ₀ ² ) = π · r ₀ ²

r ₁ ² = 2 r ₀ ²

r ₁ = 2 ^1/2 · r ₀

For the third exit 13

S ₂ = π · (r ₂ ² -r ₁ ² ) = π · r ₀ ²

r ₂ ² = 2 r ₀ ² + r ₀ ²

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Regarding the third radius, the ratio of the radii will be

ρ ₀ = r ₀ / r ₂ = 0.577; ρ ₁ = r ₁ / r ₂ = 0.8165; ρ ₂ = 1

Let the source 2 is located from the input window 10 of the shaper of spherical radiation 8 at a distance L with the opening of the incoming rays angle α ₁ from the emitter 2 at 17.5 °.

With an allowable error, we establish that for the Lambert radiation pattern 1 according to the equality of the light flux for the three sections 15, 16, 17, the aperture angles from the radiation center α ₂ and α _{3 are} respectively 16 ° and 34 °.

Rays 7-15-i of the central sector (Fig. 1) in a section form a triangle with sides a, b, c. The area of the central sector 15 is determined by the well-known formula of a triangle described by a circle:

S _Δ1 = (a · b · c) / (4 · R);

a = 2 · R · sin α ₂ ; b = 2 · R · cos α ₂ ; c = 2 R;

S _Δ1 = 2 · R ² · cos α · sin α _{2 2} = R ² ₂ · sin 2α = π · R ^2/6;

sin 2α ₂ = π / 6; 2α ₂ = 31.574; α ₂ = 15.787≈16 °;

The second sector 16 in the section forms a triangle with sides a ′, b ′, c ′.

a ′ = 2 · R · sin β · cos α ₂ ; b ′ = 2 · R · cos β · cos α ₂ ; c = 2 · R · cos α ₂ ;

S _Δ2 = 2 · R ² · cos β · sin β · cos α ³ ₂ = R ² · sin β · cos 2 α ³ ₂ = π · R ^2/6;

sin 2β = π · R ^{2/6 3} cos ₂ α;

cos 15,787 ° = 0.9623; cos ³ α ₂ = 0.8910; sin 2β = 0.5876;

2 β = 35.99; β = 17.995≈18 °;

α ₃ = α ₂ + β = 16 ° + 18 ° = 34 °.

Having established the outputs of the seal 14 at the calculated boundaries at a distance L = 2 · R from the radiation source 2, we determine the aperture angles of the radiation beams for the corresponding outputs of the sectors 18, 19, 20 of the seal 14. They will be distributed for this seal 14 for the Go sector 18, the angle α ₄ = ρ ₀ · arc tan α ₁ = 10 °, for r ₁ sector 19 angle α ₅ = ρ ₁ · arc tan α ₁ = 14.4 °, for r ₂ sector 19 angle α ₁ = 17.5 °.

Let in this case, the ratio of the radius G2 of output 13 and the distance L = 2 · R from the radiation source

tan α _i = r ₂ / L = 5.36 / 17 = 0.3153.

Then, when compressing our "Lambert" vessel 5 (Fig. 1) with a unit radius R = 1 in the ball of the vessel 5, the volume of the "liquid" is V _lamb , i.e. light energy:

V _dams = (4 · π · R ³ ) / 3.

Volume of a cone of a sealant 14

V _upl = (π · r ₂ ² · L) / 3; r ₂ = L tg α ₁ ; V _upl = (π · L ³ · tg ² α ₁ ) / 3;

L = (3 · V _lamb ) / (π · tg ² α ₁ ) ^1/3 = (4 / tg ² α ₁ ) ^1/3 ; L = 3.4268,

those. light intensity will increase by about 3.4 times.

To form a uniform luminous flux of the exit windows 11, 12, 13 of each section 18, 19, 20, for the shaper 8, a different compression ratio of the “bulkheads” 6 of the “Lambert” vessel 5 is required. Namely, in the cross-section, the sealant 14 must be compressed for the central section 18 with a radius r ₀ with α ₂ = 16 ° in section 15 in the Lambert vessel 5 in seal 14 to α ₄ = 10 °, 1.6 times. For the second section 19 of the seal 14 with the output area π · (r ₁ ² -r ₀ ² ) with the difference (α ₃ -α ₂ ) = 34 ° -16 ° for section 16 in the “Lambert” vessel 5 in the seal 14 in section 19 to the difference (α ₅ -α ₄ ) = 14.4 ° -10 °, i.e. 18 ° to 4.4 °, about 4.1 times. And in the last sector 20 with the output in the seal 14 with area π · (r ₂ ² -r ₁ ² ) in the Lambert vessel 5 in section 17 with the difference (α ₁ -α ₅ ) = 85 ° -34 ° in the seal 14 in section 20 to a difference of 17.5 ° -14.4 °, i.e. 51 ° to 3.1 °, almost 16 times.

The density of the input streams for the reflection of rays 7-i from the mirrors 21, 22, 23 of the corresponding sectors 18, 19, 20 of the seal 14, as can be seen from figure 2, varies significantly from the center to the edge of the outputs of the seal 14. And inside the third sector 17 the light density the flux decreases to the edge almost to zero and measures must be taken to compensate for this phenomenon until a uniform light flux density is formed over the entire output area of the third sector 20. This can only be achieved by appropriate compression, i.e. roughly, by properly focusing and defocusing the light flux onto the output reflecting mirror 23 of the third sector 20. For this, we determine the laws of formation of the light flux with the Lambert radiation pattern. From figure 1 we see that depending on the deviation of the rays 7-i of the emitter 2 from the center of radiation, the radiation amplitude I decreases with increasing angle α_one deviations

I = 2 · R · cos α _i .

It can be assumed that during the compression of the partitions 6 in the Lambert vessel 5, compression to the middle level will occur faster where the occupied area S is smaller in its section, between the partitions, i.e. rays 7-i-1, 7-i-2. This area S _{i of} triangles between the rays at a step of α _i = 5 ° will be determined from the expression

S _i = (h · c) / 2,

where h is the opening between the rays 7-i-1 and 7-i-2 in the Lambert vessel 5,

c = 2 · R · cos nα _i , h = 2 · R · cos nα _i · sin α _I,

and correspondingly,

S _i = R ² cos nα _i cos nα _i 2 sin α _i

for R = 1 and α _i = 5 ° we get

S _i = cos n5 ° · cos n5 ° · 2 · sin 5 °.

At 2 · sin 5 ° = 0.1736, the data of h and areas S _i with a gradation of 5 ° are shown in Table 1.

To assess the unevenness of the light flux of the emitter 2, we round off the boundaries of the sectors of the Lambert vessel 5 as 0 ° -15 °; 15 ° -35 °; 35 ° -85 °. This will lead to some error, but in this case it does not matter. And relative to each value of S _i to the total value of the areas S _i , i.e. the area of each sector 15, 16, 17, in percentage terms we determine the position of each “partition” 6 for the formation of a uniform flow over the radiation areas at the outputs 11, 12, 13 of each sector 18, 19, 20 of the seal 14.

Figure 2 shows the normalized distribution of rays (their focus and defocusing) in each sector of the emitter on the output mirrors 21, 22, 23 of the seal 14. Deviations in the central sector 18 are insignificant relative to the average value of 33.33% - + 0.69% and - 0.65%, almost negligible. In the second sector 19, deviations are more noticeable relative to the average value of 25% ± 3%, for practical use in ball lamps "yarylko" can also be neglected. However, for the third sector 20, these deviations are significant, and they must be taken into account to form a uniform radiation flux at the output 13 of the seal 14.

The construction of the mirrors 21, 22, 23 of the seal 14 we begin in the combined paintings of the Lambert vessel 5 and seal 14 (figure 3). It is best to start with the formation of mirror 23, because the future volume of the entire seal 14 depends on its position in the sector 20 of the seal 14 because of the position and dimensions of the mirror 24, which reflects the outgoing rays 7-17-i from the radiation source 2, the rays 7-24-i to the mirror 23, forming a uniform radiation flux from exit window 13. Highly set mirror 23 is undesirable, because the mirror 24 may go too far beyond the Lambert vessel 5, and too low - will lead to an unjustified decrease in all mirrors of the seal 14 and the possible mirror 23 blocking the radiation paths for mirrors of other sectors 19, 18. Therefore, we choose the position of the mirror 23 in sector 20 at the level not exceeding the boundary between sectors 17 and 18 in the Lambert vessel 5.

Let us select the point 25 of the reflection focus of rays 7-24-i at the boundary of sectors 20, 19 of the seal 14. At points 25 and the radiation point of the emitter 2, which are the centers of the ellipse, at a distance not exceeding the boundary between sectors 17, 18 in the Lambert vessel 5, by ellipse the paths we build a mirror 24. We fix the position of the converging rays 7-24-i at point 25. In the sector 20 of the seal 14 on an enlarged scale (Fig. 4), in the region of point 25 we fix according to table 1 the position of the reflected rays 7-23-i from the future mirrors 23. At the intersection of the incoming 7-24-i and “reflected” 7-23-i rays of the system mini-mirror 23-z-i for each beam 7-24-i. On an enlarged scale, it is best to use, based on Table 1, the normalized position according to the parameters h of the incoming rays 7-24-i and the parameters S, reflected rays 7-23-i. With the parallel displacement of the mini-mirrors 23-z-i relative to their incoming rays 7-24-i from the lower beam, we approximate the curve of the mirror 23 and fix the directions of the incoming rays 7-24-i. According to the changed positions of the rays 7-24-i to the mirror 23, we correct the curve of the mirror 24 at the intersections of 7-24-i and outgoing rays 7-17-i from the radiation source 2. This is the first option to build mirrors 23, 24.

In the second option, we build the line of the reflected beam 7-24-0 from the border of sectors 17, 18 to the border of sectors 19, 20. We fix the angle between this border 19, 20, (7-23-0), and the beam 7-24-0, for example, 70 ° (FIG. 5). On this line, select point 27. Relative to this line from point 27 on it to an imaginary line 28, on which normalized values of h are plotted from table 1 for the position of rays 7-24-i on it, we build converging lines 7-24-i. In sector 20, on an enlarged scale, in a normalized form, draw lines 7-23-i of reflection from the future mirror 23. At the intersection of lines 7-23-0 and 7-24-0, we build a mini-mirror 23-z-0 until it intersects with the line 7-23-1. By parallel displacement of the line 7-24-1 by the corresponding approximation of the line of the mini-mirror 23-z-0 and the new mini-mirror 23-z-1, we find its intersection with the line of the beam 7-23-1. We fix the position of the beam 7-24-1 and continue the line of the mini-mirror 23-z-1 until it intersects with the line of the beam 7-23-2 and repeat the same operations until the rest of the rays 7-24-i are fixed. As a result, we obtain the trajectory of mirror 23. Next, continuing the lines 7-24-i until the intersection of the corresponding lines of the outgoing rays 7-17-i from the source 2 in the third sector 17, we construct a mirror 24 at the corresponding points by approximation.

The third option is considered in the examples of constructing mirrors 22 and 29 in the second sector 19 of the seal 14 and in the sector 16 of the emitter 2, respectively (Fig.6-8).

To begin with (Fig.6) we will set the angle of the mini-mirror 29-z-0 relative to the beam 7-16-0 to reflect the beam 7-29-0 from the incoming beam 7-16-0. Let it be, for example, of the order of 40 ° and construct a mini-mirror 22-z-0 of the reflection of the beam 7-19-0 until the intersection with the beam 7-19-1. From this point of intersection or lower along the line of the beam 7-19-1 we build a mini-mirror 22-z-1 so that the intersection of the line of the mini-mirror 22-z-1 with the line of the mini-mirror 22-z-0 beyond the limits of the beam 7-19-0, and the beam 7-29-1 with its mini-mirror 29-z-1 intersected with the mini-mirror 29-z-0, without going beyond the limits of the beam 7-16-0. In the next mini-mirror 22-z-2, select the intersection with the mini-mirror 22-z-1 inside the beam zone 7-19-1 and the slope of the reflection of the beam 7-19-2 so that the incoming beam 7-29-2 its 29-z-2 mini-mirror intersected with the 29-z-1 mini-mirror inside the beam zone 7-16-1. We will perform similar operations for the remaining 22-z-i mini-mirrors, rays 7-29-i and 29-z-i mini-mirrors. As a result, from the reflection points of rays 7-19-i and 7-29-i of the corresponding mini-mirrors 22-zi and 29-zi with their incoming rays 7-29-i and 7-16-i, by approximation, we build mirrors 22 and 29 .

7 shows an example when setting the position of the mini-mirror 29-z-0 at 55 ° relative to the beam 7-16-0.

On Fig shows an example when setting the position of the mini-mirror 29-z-0 at 70 ° relative to the beam 7-16-0.

In this case, we select the first example of building mirrors 22 and 29, because sufficient space must still be left for the construction of the following mirrors to form the luminous flux of the central sector 18 of the seal 14.

In a transparent body, observing the laws of optics, we can place mirrors with a thin coating in any desired place. If required, and along the path of the rays, because due to the small thickness, they will not leave noticeable shadows. Therefore, to build a mirror 21 in sector 18 of the seal 14 and mirror 30 in sector 15 of the Lambert vessel 5, we choose the position of the intermediate mirror 31 at the boundary of sectors 16, 17 in the Lambert vessel 5 along the path of the opposite beam 7-15-0 or 7-16-n . Choose a point of position of the beam 7-15-3, the reflected beam 7-30-3 from the future mirror 30 to the mirror 31 at an angle, for example, 70 °, and at the same angle reflected the beam 7-31-3 to the future mirror 21 reflecting beam 7-21-3. We build a mini-mirror 21-z-3 to the intersection with the beam 7-21-2 normalized according to table 1. Let us set the convergence condition for beams 7-31-i and 7-30-i at 6 °, this is the difference between the angles of the beam 7-15-i and the outgoing beams of rays 7-21-i, 16 ° -10 °. Observing this condition, in this case we deflect by 2 ° relative to beam 7-31-3 beam 7-31-2 with a parallel offset from the intersection of beam 7-21-2 with a mini-mirror 21-z-3 and construct a mini-mirror 21 -z-2 to the intersection with the normalized beam 7-21-1 so that it intersects with the line of the mini-mirror 21-z-3 in the area of the rays 7-21-3 and 7-21-2. Next, we build beam 7-30-2 to the intersection with beam 7-15-2 and build a mini-mirror 30-z-2 with the condition that the line of the mini-mirror 30-z-3 intersects in the zone of rays 7-15-3 and 7- 15-2. If this does not happen, then you need to change the initial angle of the beam 7-30-3. Similarly, we complete the position of the beams 7-31-1, 7-30-1 and 7-31-0, 7-30-0. In this case, the condition must be met that the 7-15-3 beam intersects with the 7-30-0 beam outside the zone of the 7-15-i beam. At the points of intersection of the rays 7-21 -i with 7-31-i and 7-30-i with 7-15-i approximation, we construct mirrors 21 and 30, respectively.

However, it is possible to build mirrors 21 and 30 in parallel beams of rays 7-30-i and 7-31-i. To do this, you need to select the appropriate angle of the beam 7-30-3 to the mirror 31 and, similarly to the previous operations for Fig. 9, build mirrors 21, 30 in Fig. 10. In this case, freedom of maneuver is very limited. In this example, this angle is 68 °.

11 shows an additional possibility of constructing mirrors 21, 30 in parallel beams of rays 7-31-i, 7-30-i. This is achieved by the fact that for a given parallel beam of rays 7-31-i, we select the location of the intermediate mirror 31 to be placed on one of the rays 7-17-i until the parallel beam conditions of the reflected rays 7-30-i from the mirror 30 of the beam coming to it rays 7-15-i. In this case, the value of the angle of incidence 7-30-3 was close to the previous one and equal to 70 °. However, it must be borne in mind that the implementation of this example will require the organization of a new sector and, accordingly, a new shape in order to form this mirror in a transparent body. Therefore, we select the first example. As a result, figure 3 shows the option of constructing all the mirrors of the light flux seal. To protect the mirrors from external influences, the seal 14 with the mirrors in a transparent body is placed in the shell 32.

The shown examples of building mirrors are evaluative in design. For the exact manufacture of molds for casting sectors of the seal, they can be used to create appropriate programs for machine tools with programmed control.

12 also shows in cross-section a possible embodiment of the lamp 33, “Yarilko”, assembled with a seal 14 and a spherical shaper 8 of the light flux.

Literature

1. RU 2242778, "Device for compression-expansion of the optical beam."

2. RU 2070683, “Device for lighting a vehicle”.

3. A.S. 402718, "Optical system of a searchlight with high power tube lamps."

4. M.Ya. Vygodsky, “Handbook of Elementary Mathematics”, Moscow: “Science”, 1986, 317 pp.

Table 1 α _i = 5 °, 2sin α _i = 0.1743, h = cos (n α _i ) 2sin α _i , S _i = h cos (nα _i ) n α _i ⁰ cos nα _i h Σh h% Σh% S _i ΣS _i

$$Si\raisebox{1ex}{$c$}\!\left/ \!\raisebox{-1ex}{$o$}\right.$$

$$\Sigma Si\raisebox{1ex}{$c$}\!\left/ \!\raisebox{-1ex}{$o$}\right.$$

0 0 one 0.1736 0.513 33.9 33.9 0.1736 0.508 34.1 34.1 one 5 0,9962 0.1716 33.5 67.4 0.1709 33,4 67.5 2 10 0.9848 0.1683 32.6 one hundred 0.1658 32,5 one hundred 3 fifteen 0.9659 0.1638 0.615 26.6 26.6 0.1582 0.567 27.9 27.9 four twenty 0.9397 0.1579 25.7 52.3 0.1484 26.2 54.1 5 25 0.9063 0,1509 24.5 76.8 0.1368 24.1 78,2 6 thirty 0.8660 0.1427 23,2 one hundred 0.1236 21.8 one hundred 7 35 0.8191 0.1335 0.779 17.1 17.1 0.1094 0.485 22.6 22.6 8 40 0.7660 0,1232 15.8 32.9 0.0944 19,4 42.0 9 45 0.7071 0.1120 14,4 47.3 0,0792 16.3 58.3 10 fifty 0.6428 0.1000 12.9 60,2 0,0642 13.3 71.6 eleven 55 0.5736 0.0871 11,2 71,4 0,0500 10,4 82.0 12 60 0.5 0,0736 9,4 80.8 0,0368 7.5 89.5 13 65 0.4226 0,0596 7.6 88.4 0,0252 5.2 94.7 fourteen 70 0.3420 0.0450 5.8 94.2 0.0154 3.2 97.9 fifteen 75 0.2582 0,0302 3.9 98.1 0.0078 1,6 99.5 16 80 0.1736 0.0152 1.9 one hundred 0.0026 0.5 one hundred 17 85 0.0871 0.0000 0.0000 0,0 -

Claims (1)

A method of compacting the light flux of a light-emitting element, characterized in that light-forming sectors are created in the volume of the transparent body to form a solid angle of radiation at the outlet of the sealant, volume annular mirrors of double reflection of the light flux from the light-emitting element are placed in each sector of the transparent body, the mirror reflecting the outgoing rays from the radiation source, its curvature, focusing and defocusing on the output mirror form a uniform light flux density, and with with the output mirror, its curvature, create a normalized distribution of rays and the formation of a corresponding solid angle of radiation at the output of the light flux seal sector, in addition to form a solid angle of uniform radiation at the exit of the central sector, a thin intermediate ring is introduced along the path of the light flux radiation a mirror reflecting from a mirror in the central sector outgoing rays from a radiation source.

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