KR20110044504A - Uniform grating structure for a superposition amplification light - Google Patents

Abstract

PURPOSE: A uniform grating structure for superposed and amplified light is provided to maintain and irradiate uniform reflected light in a fixed direction. CONSTITUTION: Secondary lights are reflected and diffracted from a primary light through a uniform grating. The secondary lights are reinforced by the path difference and are diffused by the amplification of the light strength and diffraction due to the uniform grating. A primary light source offers a first light. A secondary light source(120) irradiates homogeneous reflected light by transmitting and reflecting the first light of the primary light source.

Description

UNIFORM GRATING STRUCTURE FOR A SUPERPOSITION AMPLIFICATION LIGHT}

The present invention relates to a uniform lattice structure for superimposed reinforced light, and more particularly, to a uniform lattice structure for superimposing and reinforcing light of a light source without changing the amount of light by the uniform lattice.

In general, optical amplification refers to a method of directly amplifying light by induced radiation when amplifying an optical signal.

Such optical amplification is performed by an optical amplifier having a complicated structure. However, the optical amplification is emerging to be realized by a simple structure and the intensity is high but the amount of light remains unchanged. Conventional diffraction gratings have been mainly used in spectrometers that spectroscopic light by giving a blaze angle . In the present technology, a uniform grating using the principle of a diffraction grating is devised and a structure capable of overlapping and reinforcing light.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its object is to amplify the intensity of incident light by constructive interference by a uniform lattice body so that the amplified uniform reflected light can be maintained and irradiated in a constant direction and uniformly It is to provide a uniform lattice structure that gives a diffusing effect of light by diffraction of the lattice.

In general, physics explains the principle of constructive interference and diffraction for short wavelengths as basic theory. However, light in reality is but also consists of a wavelength to say can not be explained solely on the short wavelength theory in the description, the wavelength in the end such a short wavelength in the theoretical description of the stage so wavelength gathered made form the interference and diffraction image of the wavelength Can be interpreted on the basis of the fundamental principles of interference and diffraction. In other words, it is possible to explain the phenomenon of multi-wavelength light and its theoretical interaction using short-wave interference and diffraction. Therefore, in the present invention, based on the theoretical background description, the structure for the superposition reinforcement light was proposed by devising a uniform lattice to amplify and diffract the light of the actual wavelength. The uniform lattice here is designed by applying the principle of the diffraction grating already used in spectroscopy.

In addition, by providing a uniform lattice structure for superimposed reinforcement light, the structure of the uniform lattice can be applied to not only general lighting but also various lights emitting high intensity light and special light (laser light). have.

In order to achieve the above object, the present invention, the secondary light that is reflected (reflected) and diffraction (Diffraction) from the primary light through the uniform grating (Uniform Grating) overlap each other, so that the interference of the light wavelength due to the path difference As a result, the secondary lights are diffused by amplification of light intensity and diffraction by a uniform grid.

In addition, the present invention, the primary light source unit which is a light source source for providing the primary light; And a secondary light source unit which is a uniform lattice body that emits secondary light, which is a homogeneous reflected light amplified by constructive interference by transmitting and reflecting primary light of the primary light source unit.

In addition, the secondary light source unit in the present invention; And a grid provided with any one selected from a protrusion having a set reflection angle or a hole having a set reflection angle with respect to a horizontal plane of the grid plate, or a mixed form in which the protrusion and the hole are mixed.

In addition, the grating body in the present invention is characterized in that formed at intervals corresponding to integer multiples of the primary light wavelength.

Moreover, the space | interval of the said grating body in this invention is characterized by being formed in 0.1 micrometer-10 mm.

In addition, the secondary light source in the present invention, the grating plate is provided in the form of a spherical plate, characterized in that the reflector is disposed on the surface of the spherical plate so that the primary light is irradiated from the front.

In addition, the secondary light source unit in the present invention is characterized in that the grating plate is provided in a conical shape is continuously arranged so that the reflector is concentric on the inner peripheral surface of the cone so that the primary light is irradiated from the front.

In addition, the secondary light source in the present invention, the bent portion is formed on opposite ends of the grating plate provided in the form of a flat plate, characterized in that to irradiate the primary light to the reflector disposed on the surface of the flat plate from the inner wall of the bent portion It is done.

In addition, the first light source unit in the present invention is characterized in that the light source including a light emitting diode (LED) or a laser diode (LD).

According to the present invention, the uniform lattice structure according to the present invention can amplify the intensity of incident light by constructive interference by the uniform lattice, thereby making it possible to maintain and irradiate the amplified uniform reflected light in a constant direction. There is also a diffusing effect of light by diffraction, so that the structure of the uniform lattice body can be applied to various lights for emitting high intensity light and special light (laser light) as well as general lighting.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

<Example 1>

As shown in FIG. 1, the optical amplification structure 100 of the uniform lattice according to the present exemplary embodiment is a secondary light that is reflected and diffracted from the primary light through the uniform grating. They overlap each other and the light wavelength is amplified by the retardation interference due to the path difference, and the light intensity is amplified and diffused by diffraction by the uniform lattice body, and includes a primary light source unit 110 and a secondary light source unit 120 do.

The primary light source unit 110 is a light source source for providing the primary light to the secondary light source unit 120, and includes a light emitting diode (LED) or a laser diode (LD), etc., the application of the change of any light source It is possible.

The secondary light source unit 120 is a uniform grid that emits secondary light, which is a homogeneous reflected light amplified by constructive interference by transmitting and reflecting primary light of the primary light source unit 110.

Here, the secondary light source unit 120 is a uniform grating for reflecting and diffracting the primary light of the primary light source unit 110. The grating plate 122 and the reflector 124 may be formed. The grating plate 122 includes a plurality of reflectors 124 on an upper surface thereof.

The reflector 124 is a multi-reflector, a mixture of a protrusion 124a having a set reflection angle or a hole 124b having a set reflection angle or a protrusion 124a and a hole 124b mixed with respect to a horizontal plane of the grating plate 122. It is provided with any one selected from among.

In this case, a case in which the reflector 124 is the hole 124b is illustrated, which is formed in a slit shape at a predetermined interval on the grating plate 122. Here, the primary light source 110 is preferably installed at the rear of the reflector 124, respectively.

At this time, the light of the primary light source unit 110 overlaps the floor and the floor or the valleys and valleys of the two waves according to the position (path difference) of the bright band through the secondary light source unit 120 that is a uniform lattice (Grating reflector). The condition under which constructive interference occurs as follows based on the fundamental principle of physics short wave length and interference of light of multiple wavelengths to maximize the amplitude of the synthesized wave is shown in Equation 1.

Where d is a lattice (hole 124b) interval, θ is a diffraction angle, m is an integer of -2, -1, 0, 1, 2., etc., and λ is a wavelength of light.

In particular, when the distance between the holes 124b, which are the reflectors 126, is satisfied to be formed to be 0.1 µm or more and 10 mm or less, which is an integer multiple of the primary optical wavelength, the phase difference of the light emitted from the neighboring lattice points is mutually different. Since the constructive interference is caused, the secondary lights formed by the uniform lattice body overlap and amplify. In addition, by controlling the gap of the hole 124b of the grating as small as possible, the diffraction phenomenon of the secondary light can be effectively shown, thereby increasing the light diffusion and overlapping effects.

Next, the condition that the constructive interference occurs according to the width of the bright band through the secondary light source unit 120, the light of the primary light source unit 110 is a uniform lattice, is expressed by Equation 2.

As a result, the optical characteristics of the rotational grating by the secondary light source unit 120 are wider as the lattice spacing d of the holes 124b is smaller, so that the overlapped portion becomes larger, and thus brighter light characteristics.

In this way, the neighboring reflected light through the hole 124b of the secondary light source unit 120 maintains constructive interference to form homogeneous light, so that the intensity of the primary light is reduced by the associated secondary light as shown in Equation 3 below. It is amplified about 4 times and emitted in a constant direction. Furthermore, the secondary light has an improved intensity compared to the primary light, but the overall amount of light does not change.

Where I is the amplified light intensity and I _{0 is the} initial light intensity.

As a result, when the secondary light source unit 120 is a mixed form in which the reflector 126 is a mixture of the protrusions 124a and the holes 124b, the second light source unit 120 has the remaining side except for one side on the surface of the grating plate 122 as shown in FIG. 1. It is formed by partially bending the sides and then bent upwards. In particular, since the grid plate 122 is cut when the protrusion 124a is formed, the holes 124b are simultaneously formed in the cutting process. Furthermore, since the size of the hole 124b is the same as the size of the protrusion 124a, when the micro area of the hole 124b is required, the protrusion 124a may be extended to a separate member.

Here, the primary light source unit 110 selects the inclined irradiation direction while being installed behind the secondary light source unit 120 so that the primary light source can be irradiated to the inclined protrusion 124a through the hole 124b.

Here, when the size of the holes 124b is made smaller, when the distance between the protrusions 124a and the holes 124b is satisfied within a range of 0.1 μm to 10 mm corresponding to an integral multiple of the primary light wavelength, The phase difference of the light emitted from the corresponding point is maintained to be constructively interfered with each other, so that the light waves overlap each other and constructively interfere so that the amplitude of the interference waves is amplified.

As a result, the secondary light source of the primary light source unit 110 is a homogeneous light in which three parallel optical paths (see FIG. 1) are amplified by a uniform lattice including a hole 124b and a protrusion 124a. It emits light, which is different from the spectrum according to the spectral, and makes the optical path difference condition of constructive interference by keeping the optical path of the reflected light constant without applying the general principle of separating (spectral) light by using the grating reflector. To make light that is amplified.

<Example 2>

As shown in FIG. 2, the optical amplification structure 400 by the uniform lattice body includes the primary light source unit 210 and the secondary light source unit 220, and the primary light source unit 210 is implemented as described above. The detailed description is omitted because it has the same structure and function as that of the example.

The secondary light source unit 220 is provided with a grid plate 222 in the form of a spherical plate, the primary light source unit 210 is installed in the front so that the primary light is irradiated from the front, although not shown in the figure is a reflector on the surface of the spherical plate The protrusions are formed of flat reflectors or adjacent or spaced at set intervals. At this time, in the present embodiment it is illustrated as a flat reflector.

At this time, in the present embodiment, the flat reflector 226 is provided, and the light of the primary light source unit 210 is reflected on the surface of the grating plate 222 which is a concave spherical plate.

<Example 3>

As shown in FIG. 3, the optical amplifying structure 300 by the uniform lattice body includes the primary light source unit 310 and the secondary light source unit 320, and the primary light source unit 310 is implemented as described above. The detailed description is omitted because it has the same structure and function as that of the example. At this time, the primary light source 310 is preferably radially installed on the upper edge of the inner peripheral surface of the trellis plate 322 of the cone shape.

The secondary light source unit 320 is provided with a grid plate 322 in a conical shape so that the reflector 326 is concentric on the inner circumferential surface of the cone so that the primary light is irradiated from the front, the reflector 326 in the present embodiment. Is the protrusion 324a.

In particular, the secondary light source unit 320 is provided in a conical shape, and can be applied to automobile headlights, factory lights, harbor lights, search-lights, and high-power flashes according to condensing.

<Example 4>

The light amplifying structure 400 according to the present exemplary embodiment includes the primary light source unit 410 and the secondary light source unit 420, as shown in FIGS. 4A and 4B, and the primary light source unit 410. Since the same structure and function as that of the previous embodiment, a detailed description thereof will be omitted.

The secondary light source 420 has bent portions 424 formed at opposite ends of the grid plate 422 provided in the form of a flat plate, and protrusions 424a which are reflectors 626 on the inner wall of the bent portion 424. In order to irradiate the primary light source, the primary light source unit 410 is disposed with both sides of the center of both ends inclined toward the center of the grid plate 422 with respect to the center of both ends.

That is, the primary light source unit 410 irradiates light in the direction of the protrusion 424a to the inner wall of the bent portion 424 inclined in the outward direction and inclined again in the inner direction on both ends of the grating plate 422. The center and the outside are provided in a state where the irradiation angles of the light are different.

In this case, the primary light source 410 is partially disposed at the center of both bent portions 424 in parallel with the protrusion 424a, and at both ends of the center of the both bent portions 424 in the center direction of the protrusion 424a. It is installed inclined.

Particularly, the bent portions 424 are formed at both ends of the second light source portion 420 and the flat portions, respectively, and the protruding portions 424a are formed by the primary light source portions 410 installed at the center and the outer surface of the bent portion 424. ) Or directly reflected by the bent portion 424 and again reflected by the protrusion 424a, thereby minimizing the loss of the primary light, and may be applied to security lights, street light tunnels, and the like.

In the detailed description of the present invention described above with reference to the preferred embodiment of the present invention, the scope of protection of the present invention is not limited to the above embodiment, and those skilled in the art of the present invention It will be understood that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention.

1 is a schematic diagram illustrating a uniform lattice structure according to an embodiment of the present invention.

Figure 2 is a schematic diagram showing a uniform grid structure according to another embodiment of the present invention.

Figure 3 is a schematic diagram showing a uniform grid structure according to another embodiment of the present invention.

4A and 4B are front and plan views illustrating a uniform grid structure according to still another embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

110, 210, 310, 410: primary light source

120, 220, 320, 420: secondary light source

122, 222, 322, 422: grid plate

124b: hall

324a: protrusion

Claims (9)

Secondary lights reflected and diffracted from the primary light through the uniform grating overlap each other, so that the light wavelength is reinforced and interfered by the path difference. And the secondary lights are diffused by diffraction. The method of claim 1, A primary light source unit serving as a light source for providing the primary light; And And a secondary light source unit which is a uniform lattice body that transmits secondary light, which is homogeneous reflected light amplified by constructive interference by transmitting and reflecting primary light of the primary light source unit. . The method of claim 2, wherein the secondary light source unit Grid plate; And And a reflector provided in any one of a protrusion having a set reflection angle or a hole having a set reflection angle with respect to a horizontal plane of the grating plate, or a mixed form in which the protrusion and the hole are mixed. The method of claim 3, The reflector is a uniform grid structure, characterized in that formed at intervals corresponding to integer multiples of the primary light wavelength. The method of claim 4, wherein The spacing of the reflector is formed in the range of 0.1㎛-10mm uniform grid structure. The method of claim 3, wherein the secondary light source unit, The grid plate is provided in the form of a spherical plate, the uniform grid structure, characterized in that the reflector is disposed on the surface of the spherical plate so that the primary light is irradiated from the front. The method of claim 3, wherein the secondary light source unit, The grating plate is provided in a conical shape, the uniform grid structure, characterized in that the reflector is arranged concentrically on the inner peripheral surface of the cone so that the primary light is irradiated from the front. The method of claim 3, wherein the secondary light source unit, A bent portion is formed at opposite ends of the grating plate provided in the form of a flat plate, and the uniform grid structure, characterized in that to irradiate the primary light from the inner wall of the bent portion to the reflector disposed on the flat surface. 3. The method of claim 2, The first light source unit is a uniform grid structure, characterized in that the light source including a light emitting diode (LED) or a laser diode (LD).

Images