KR20170121899A - Detection apparatus for micro dust and organism - Google Patents

Abstract

Disclosed is an apparatus to detect fine dust and microorganism, comprising: a sample chamber body including a sample chamber through which a sample to be measured is introduced and having an inner portion realized in an elliptical mirror, a light incidence port upon which incident light is incident, and a first light irradiating port and a second light irradiating port to emit the incident light irradiated on the sample to be measured; a light transmitting portion to irradiate incident light as a pulse wave to a light incidence portion, blocking surrounding light introduced to the incident light; and a light receiving portion to separate the irradiated light emitted from the first light irradiating port into a first passage and a second passage for transfer, detecting scattering light from the emitted light transferred through the first passage, and blocking surrounding light introduced to the emitted light transferred through the second passage to detect fluorescence, thus being capable of maximizing detection ability.

Description

TECHNICAL FIELD [0001] The present invention relates to a device for detecting fine dust and microorganisms,

An embodiment according to the concept of the present invention relates to a fine dust and microorganism inspecting apparatus, and more particularly to a microscopic dust and microorganism inspecting apparatus capable of simultaneously detecting fine dust and microorganisms, minimizing light noise and maximizing output of a light source, And more particularly, to a fine dust and microorganism detecting device capable of detecting microorganisms.

As the industry develops, the generation of pollutants is also increasing. These pollutants contain various harmful substances such as fine dusts and microorganisms. In recent years, it has been found that among such pollutants, materials such as fine dusts and microorganisms that can be frequently encountered in the environment can have a fatal effect on the human body. At the national level, it is also possible to predict the dustiness, . In addition to forecasting national or regional scales to prevent and minimize substantial damage to micro dust and microorganisms, continuous monitoring and countermeasures in public spaces or facilities where people are inundated are essential. In accordance with these demands, research and development on devices capable of highly precise detection of fine dusts and microorganisms are being continuously carried out. Conventional microorganism detection techniques have been used to collect samples for measurement in the atmosphere, to culture the collected samples in a medium, and to detect microorganisms through the number of cultured microorganisms and the like. However, this method has a disadvantage in that it takes several hours to several days or more to cultivate the captured microorganisms. Recently, researches on an optical detector capable of monitoring the atmospheric state in real time have been actively conducted. 1 is a view showing a conventional optical detector for detecting fine dust and microorganisms. The optical detector shown in Fig. 1 irradiates the measurement sample in the sample chamber 31 with light while the measurement sample aerosol flows into the sample chamber 31 whose inner wall surface is the ellipsoidal mirror 32 , And collects scattered light and fluorescence generated by collision with the measurement sample to detect fine dust and microorganisms. However, in the conventional optical detector, since the lower light exit port 36 is formed around the optical stopper 70 and the hole size must be large so that the scattered light can be emitted through the hole, There is a great possibility that ambient light is incident. Further, since the light from the light source unit 33 is focused on the optical stopper 70 instead of the first focus 32-1 of the ellipsoidal mirror 32 into which the measurement sample is introduced, there is a problem that the detection efficiency is lowered. In addition, the detection rate of microorganisms in the optical detector is characterized by being proportional to the intensity of the light source. The conventional optical detector has a problem that the output can not be increased because the output of the LED light source is controlled to be constant.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a fine dust and microbial detection device capable of maximizing detection capability by minimizing light noise due to ambient light formed in the process of detecting fine dust and microorganisms, .

Another technical problem to be solved by the present invention is to increase the detection efficiency by setting the same optical path of the scattered light and fluorescence to detect fine dust and microorganisms and to detect fine dust and microorganisms simultaneously And a microorganism detecting device.

According to an embodiment of the present invention, there is provided an apparatus for detecting fine dust and microorganisms, comprising: a sample chamber into which a measurement sample is introduced, the interior of which is formed into an elliptic shape, a light incidence hole through which incident light is incident, A sample chamber body including a first light exit port and a second light exit port, a light emitting section for irradiating the incident light to the light incidence section as a pulse wave to block ambient light entering the incident light, The first path and the second path, and detects the scattered light by blocking the ambient light introduced into the outgoing light transmitted to the first path, And a light receiving unit for detecting fluorescence by intercepting ambient light.

Wherein the light emitting unit is disposed between the light source unit and the light incidence unit, the light source unit irradiating the incident light with a duty cycle of 30% to 70% toward the light incidence unit, and condensing the incident light emitted from the light source unit A second optical system that is disposed between the first optical system, the light source unit, and the first optical system and condenses incident light that is condensed and diffused again from the first optical system onto a first focal point of the elliptic mirror, And a first light control unit disposed in the first optical system and removing light noise introduced into the incident light transmitted from the first optical system to the second optical system.

The first light control unit includes a plurality of light control units, and each of the plurality of light control units has an opening formed at a center thereof.

At this time, the plurality of light control units are characterized in that a smaller aperture is formed in the vicinity of the condensing focus of the first optical system.

Wherein the light receiving portion separates outgoing light emitted to the first light output port into scattered light and fluorescence respectively and transmits the separated light to the first path and the second path and transmits ambient light introduced into each of the first path and the second path And a second detection unit for detecting fluorescence transmitted to the second path. The first detection unit detects scattered light transmitted to the first path, and the second detection unit detects fluorescence transmitted to the second path.

Wherein the third optical system includes a first condensing lens unit for changing the emitted light that is diffused and emitted to the first light output port into parallel light, and a second condensing lens unit for converting the scattered light whose wavelength is not changed in the parallel light transmitted from the first condensing lens unit A second converging lens unit that converges the scattered light transmitted to the first path to the first detecting unit, and a second condensing lens unit that transmits the fluorescence to the first path, A second light control unit disposed between the detection unit and the second condenser lens unit for blocking ambient light introduced into the light condensed by the second condenser lens unit; A third light condensing lens unit for condensing the light condensed by the second condenser lens unit and a third light condensing lens unit for condensing the ambient light introduced into the light condensed by the third condenser lens unit, Inoculation .

The second detection unit is located outside the condensing focus of the second condenser lens unit, and the first detection unit is located outside the condensing focus of the third condenser lens unit.

The second light control unit includes a plurality of light control units, and each of the plurality of light control units has an opening formed at a central portion thereof.

Further, the plurality of light control units may be arranged so that a smaller opening is formed in the vicinity of the condensing focus of the second condensing lens unit.

The third light control unit includes at least one light control unit, and the light control unit has an opening formed at the center thereof.

The apparatus for detecting fine dust and microorganisms according to the embodiment of the present invention may further include an optical stopper unit for stopping the outgoing light emitted to the second optical outlets so as to block inflow of the ambient light in the sample room into the first optical outlets .

And the optical stopper portion includes a conical member whose vertex is disposed so as to face the path of the emitted light.

Further, the fine dust and microorganism device according to the embodiment of the present invention is characterized in that the measurement sample is introduced into the first focus of the elliptic mirror.

As described above, the apparatus for detecting fine dust and microorganisms according to an embodiment of the present invention minimizes the inflow of ambient light to various optical foci formed in the detection process, thereby remarkably improving the performance of detecting fine dust and microorganisms have.

In addition, it is possible to improve the simultaneous detection capability of fine dust and microorganisms by matching scattered light for detecting fine dust and fluorescence for detecting microorganisms, and matching the position of the sample sample aerosol with the optical focusing position of the light source portion .

1 is a view showing a conventional optical detector for detecting fine dust and microorganisms.
2 is a view showing an apparatus for detecting fine dust and microorganisms according to the present invention.
Fig. 3 is a diagram showing in detail the inside of the detection device shown in Fig. 2; Fig.
4 is a diagram showing the light transmitting portion shown in Figs. 2 and 3 in more detail.
5 is a view showing the second light control unit shown in FIG. 2 and FIG. 3 in more detail.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are only for the purpose of illustrating embodiments of the inventive concept, But may be embodied in many different forms and is not limited to the embodiments set forth herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. It should be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms disclosed, but includes all modifications, equivalents, or alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are intended to distinguish one element from another, for example, without departing from the scope of the invention in accordance with the concepts of the present invention, the first element may be termed the second element, The second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, the terms "comprises" or "having", etc. are intended to specify the presence of stated features, integers, steps, operations, elements, parts or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings.

FIG. 2 is a view showing an apparatus for detecting fine dust and microorganisms according to the present invention, and FIG. 3 is an internal sectional view of the detection apparatus shown in FIG.

Referring to FIGS. 2 and 3, a micro dust and microorganism detection apparatus (hereinafter referred to as a "detection apparatus") 10 according to an embodiment of the present invention includes a sample chamber body A light emitting unit 200 for emitting light to the sample chamber 110; and a light receiving unit 300 for detecting scattered light and fluorescence emitted from the sample chamber 110.

The sample chamber 110 provided by the sample chamber body 100 may be configured as an egg-shaped space, and a mirror surface, that is, an ellipsoid 120 is disposed on a part or the whole of the inner wall of the sample chamber 110, A measurement sample, for example, a sample aerosol, is introduced into the sample inlet 110 through the sample inlet 141.

The sample body 100 may include an upper body 130 and a lower body 140 and may include a sample inlet 141, a light entrance 150, a first light exit 160, (170).

The light incident portion 150 receives the light irradiated from the light emitting portion 200 into the sample chamber 110 and the inlet nozzle of the nozzle portion (not shown) is connected to the sample inlet 141 to sample the sample aerosol And the inflow position is a portion of the first focal point 121 where the light from the light emitting unit 200 is focused. A sample outlet is provided in the sample body 100 on the opposite side of the sample inlet 141 to discharge the introduced sample aerosol to the outside of the sample chamber 110.

The ellipsoidal mirror 120 in the sample chamber 110 may have two focuses 121 and 122 and the light incident from the light emitter 200 may converge to the first focus 121 of the ellipsoidal mirror 120 And the light impinging on the sample in the measurement sample is scattered and refracted and is directed to the second focal point 122 by the ellipsoid 120 and passes through the first light output port 160 to the outside Lt; / RTI >

The light emitting unit 200 for emitting light to the sample chamber 110 may include a light source unit 210, a first optical system 230, a first light adjusting unit 250, and a third optical system 270.

The light source unit 210 irradiates the UV light using a single LED to the measurement sample in the sample chamber 110 through the first optical system 230 and the third optical system 270, ) Collides with the aerosol particles introduced into the air and generates scattered light and fluorescence.

The LED, which is a light emitting element of the light source unit 210, may be arranged to emit light toward the light incident unit 150.

The use of a single LED light source by the light source unit 200 to generate the scattered light and fluorescence is advantageous for lowering the system cost and achieving miniaturization than using a general laser or a laser diode (LD) This is because there is an advantage in solving the alignment problem that arises when using four light sources.

At this time, the light source unit 210 includes a pulse control unit (not shown) for emitting pulse-shaped light in a direction of being incident on the sample chamber 110 (i.e., in the direction of the light entrance aperture 150) And emits a pulsed wave of LED light through a pulse control unit.

A control method for the light source unit 210 to emit light in the form of pulsed waves will be described in detail with reference to FIG.

4 is a view for explaining a method of controlling output light of the light source unit shown in FIG.

In general, LEDs can perform on / off switching operations faster than other optical elements. Therefore, the light source unit 210 according to the embodiment of the present invention uses PWM (Pulse Width Modulation) To perform LED switching control.

Referring to FIG. 4, the frequency at which the LED of the light source unit 210 is turned on / off may be at least several hundreds kHz.

In addition, the duty cycle of the pulse for switching the LED light source, that is, the ratio of the pulse width to the pulse period, may be set between 30% and 70%.

As described above, the light source unit 210 according to the embodiment of the present invention can increase the output of the LED light source by performing the LED switching control using the single LED light source, and as a result, .

On the other hand, by using the duty value of the on-state of the LED pulse, it is possible to correct an error of the microbe detection rate that may occur in LED switching control by PWM (Pulse Width Modulation) method.

For example, if the duty of the on-state of the LED pulse is d and the microorganism detection amount detected by the light receiving unit 300 to be described later is D, the correction value of the microorganism detection amount is a value obtained by dividing the D by the d Respectively.

Such correction of the microorganism detection amount can be performed from a signal processing unit described later.

A first optical system 230, a first optical adjusting unit 250, and a second optical system 270 are sequentially disposed between the light source unit 210 and the light inlet 150 of the sample body 100, And converges the light transmitted from the light source unit 210 to the first focal point 121 in the sample chamber 110.

More specifically, the first optical system 230 primarily condenses the light radiated from the light source unit 210 and diffused.

The second optical system 270 re-condenses the light that has been condensed from the first optical system 230 and diffuses again, and condenses the condensed light onto the first focus 121 in the sample chamber 110.

For a more detailed description, the following description will be made with reference to the drawings shown in Fig.

5 (a) is an enlarged view of the light emitting unit 200, and FIG. 5 (b) is an enlarged view of the light emitting unit 200 according to the first light control FIG. 5 is an illustration of light control units that the light control unit 250 includes.

2 to 5, the first light control unit 250 may include a plurality of light control units c1, c2, c3, c4, and c5.

5, only five light control units (c1, c2, c3, c4, c5) are shown for convenience of description, but it goes without saying that five or more light control units may be applied depending on the design.

An aperture for passing incident light transmitted from the first optical system 230 to the second optical system 270 is formed at the center of each of the plurality of light control units c1, c2, c3, c4, and c5, The aperture of each of the plurality of light control units c1, c2, c3, c4 and c5 is set to be smaller the closer to the condensing focus 235 of the first optical system 230. [

That is, the plurality of light control units c1, c2, c3, c4, and c5 have relatively large apertures as they are farther to the left and right about the condensing focus 235 of the first optical system 230. [

Accordingly, the first light adjuster 250 blocks the ambient light incident on the incident light transmitted from the light source 210 to the light inlet 150, thereby minimizing the light noise.

As a result, the fine dust and microorganism detecting apparatus 10 according to the embodiment of the present invention is capable of detecting the fine dust and microorganisms unnecessarily flowing into the incident light through the first optical system 230, the first light control unit 250 and the second optical system 270 The light can be cut off and the light noise can be minimized.

2 and 3, the light receiving unit 300 for detecting scattered light and fluorescence emitted from the first light exit 160 of the sample chamber 110 includes a third optical system 310, a first detecting unit 400 And a second detecting unit 500. [

The third optical system 310 is disposed outside the first light exit 160 of the sample body 100 and includes a first condensing lens unit 320, a spectral element 330, a second condensing lens unit 350, A second light control unit 360, a third light collecting lens unit 370, and a third light control unit 380. [

The first condensing lens unit 320 serves to convert light (for example, scattered light and fluorescence) emitted from the first light exit 160 of the sample chamber 110 into a parallel beam.

The spectroscopic element 330 changes the path of the fluorescence whose wavelength is changed among the light passing through the first condensing lens unit 320 to the second path and passes the scattered light whose wavelength is not changed to the first path.

In this case, the third converging lens unit 370, the third light adjusting unit 380, and the first detecting unit 400 are disposed in the first path of the scattered light passing through the spectroscopic element 330, The second light collecting lens unit 350, the second light adjusting unit 380, and the second detecting unit 500 may be disposed on the second path of the fluorescence whose path is changed in the path of the fluorescence.

The spectroscopic element 330 and the first detector 400, Converging lens unit 370 disposed between the first and second light sources 310 and 320 converge the parallel scattered light that has passed through the spectroscopic element 330 to the first detector 400.

The first detection unit 400 is located outside the focal point of the light condensed by the third condenser lens unit 370 and the third light control unit 390 is disposed between the first detection unit 400 and the third condenser lens unit 370. [ May be disposed.

According to the embodiment, the third light adjustment unit 390 may include at least one light adjustment unit e, and in FIG. 3, only one light adjustment unit e is shown for convenience of explanation, Two or more numbers can be applied accordingly.

At the center of the light control unit e is formed an aperture for passing the light emitted from the third condenser lens unit 370 to the first detector 400, It is possible to prevent the inflow of the incoming signal into the first detection unit 400, thereby improving the scattered light detection capability, that is, the fine dust detection capability.

The second condensing lens unit 350 disposed between the spectroscopic element 330 and the second detector 500 serves to converge the parallel fluorescence whose path has changed in the spectroscopic element 330 to the second detector 500 .

At this time, the second detection unit 500 is located outside the focal point of the light condensed by the second condensing lens unit 350, and the second light control unit 380 (second condensing unit) is disposed between the second detection unit 500 and the second condensing lens unit 350 May be disposed. For a more detailed description, the following description will be made with reference to the drawings shown in Fig.

6A and 6B are views showing the second light adjuster 380 shown in FIGS. 2 and 3 in more detail, wherein FIG. 6A is an enlarged view of the second light adjuster 380, 6 (b) is an illustration of the light conditioning units that the second light conditioning unit 380 includes.

Referring to FIGS. 2, 3 and 6, the second light adjustment unit 380 may include a plurality of light adjustment units d1, d2, d3, d4, and d5, Only five light control units d1, d2, d3, d4, and d5 are shown, but five or more numbers may be applied depending on the design.

6B, the center of each of the plurality of light control units d1, d2, d3, d4, and d5 is transmitted from the second condensing lens unit 350 to the second detector 500 The aperture of each of the plurality of light control units d1, d2, d3, d4, and d5 is formed to be smaller as the focal point of the second condensing lens unit 350 is closer to the condensing focal point Respectively.

That is, the plurality of light control units d1, d2, d3, d4, and d5 have relatively large apertures as they are farther from the center of the focusing point of the second condensing lens unit 350.

Therefore, the second light adjuster 380 can prevent the inflow of the irregularly reflected signal into the second detector 500 within the elliptic mirror 120, thereby improving the fluorescence detecting ability, that is, the ability to detect the microorganism .

According to an embodiment, the third optical system 310 may further include a band-pass filter (not shown), and the band-pass filter may include a band-pass filter It is possible to filter light other than the predetermined band.

The first detecting unit 400 and the second detecting unit 500 respectively detect the presence or absence of dust and microorganisms from the light transmitted through the second focusing lens unit 350 and the third focusing lens unit 370, .

That is, the first detection unit 400 and the second detection unit 500 respectively receive scattered light and fluorescence emitted to the outside of the sample room 110, generate detection signals for the received light, and transmit them to a signal processing unit (not shown) do.

At this time, the first detection unit 400 may be implemented as a photodiode, and the scattered light detected by the first detection unit 400 may include information on the presence and the amount of fine dust.

Since the second detection unit 500 can be implemented as a photo multiplier tube (PMT), the fluorescence detected is the presence or absence of the microorganism and the presence or absence of the microorganism. And may include information on the amount.

The signals detected by the first detection unit 400 and the second detection unit 500 are transmitted to the signal processing unit, and the presence or amount of fine dust and microorganisms are calculated according to a predetermined algorithm.

According to the embodiment, the detection device 10 may further include an optical stopper portion 700 on the side of the second light emission port 170 of the sample body 100.

The optical stopper unit 700 emits the non-diffused light to the second light output port 170 without stopping the first focal point in the main light ray incident into the sample chamber 110 and stops the light.

That is, the optical stopper unit 700 stops the light that does not collide with the particles of the measurement sample in the principal ray incident into the sample chamber 110, so that ambient light other than the scattered light in the sample chamber 110 1 light output port 160 can be minimized.

The optical stopper unit 700 may include a conical member 710 and the conical member 710 may be arranged to face a path of light through which a vertex is emitted and the case 720 may surround the conical member 710 . Therefore, it is possible to prevent direct reflection of the light impinging on the conical member 710. [

In addition, a light absorbing member such as a sponge may be disposed on the surface of the conical member 710 and the surface of the case 720 corresponding to the surface of the conical member 710, or may be embodied as a concavo-convex structure.

As described above, the detection apparatus 10 according to the embodiment of the present invention increases the output of the light source using the PWM method, and adjusts the position at which the measurement sample is incident and the incident light of the light- (121), and improves the detection performance by preventing the incident light in the sample chamber (110) from being excessively light leakage.

  In addition, the detection device 10 according to the embodiment of the present invention includes the first light control unit 250 to minimize the ambient light incident on the incident light, and the second light control unit 380 and the third light control unit 380, (390), it is possible to minimize ambient light flowing into the emitted light, thereby greatly improving the performance of detecting fine dust and microorganisms.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Detection device 100: Sample body, 110: Sample chamber,
120: ellipse, 121: first focus, 122: second focus,
130: upper body, 140: lower body, 141: sample inlet,
150: light incidence aperture, 160: first light output port, 170: second light output port,
200: light-transmitting section, 210: light source section, 230: first optical system,
250: first light control unit, 270: second optical system 300:
320: first condenser lens part, 330: spectral element, 350: second condenser lens part,
370: Third condenser lens unit, 380: Second light control unit 390: Third light control unit
400: first detection unit, 500: second detection unit, 700: optical stopper unit

Claims (13)

A sample chamber including a sample chamber into which a measurement sample is introduced and which has an elliptic inner surface, a light incidence port through which incident light is incident, a first light exit port through which the incident light is irradiated onto the measurement sample, Body;
A light emitter for irradiating the incident light to the light incidence portion as a pulse wave and for blocking ambient light introduced into the incident light; And
A first path and a second path for transmitting the emitted light emitted from the first light output port, and detecting the scattered light by intercepting ambient light introduced into the outgoing light transmitted to the first path, And a photodetector for detecting fluorescence by blocking ambient light flowing into the emitted light transmitted through the path. The light-emitting device according to claim 1,
A light source for emitting the incident light having a duty cycle of 30% to 70% toward the light incidence portion;
A first optical system disposed between the light source unit and the light incidence unit and configured to condense the incident light emitted from the light source unit;
A second optical system disposed between the light source unit and the first optical system for condensing the incident light, which is condensed from the first optical system and diffused again, to a first focus of the elliptical mirror; And
And a first light control unit disposed between the first optical system and the second optical system for removing light noise introduced into the incident light transmitted from the first optical system to the second optical system, . The apparatus of claim 2, wherein the first light adjuster comprises:
Wherein the plurality of light control units include a plurality of light control units, and each of the plurality of light control units has an opening formed at a central portion thereof. 4. The apparatus of claim 3, wherein the plurality of light conditioning units comprise:
Wherein a smaller opening is formed in the vicinity of the focusing point of the first optical system. The light-emitting device according to claim 1,
A first path and a second path for separating outgoing light emitted from the first light output port into scattered light and fluorescence respectively and transmitting the separated light to the first path and the second path, 3 optical system;
A first detector for detecting scattered light transmitted to the first path; And
And a second detector for detecting fluorescence transmitted to the second path. 6. The projection optical system according to claim 5,
A first condensing lens unit for changing the emitted light diffused and emitted to the first light output port into a parallel light;
A spectroscopic element for transmitting the scattered light whose wavelength is not changed among the parallel light transmitted from the first condenser lens part to the first path and transmitting the fluorescence whose wavelength is changed to the second path;
A second condenser lens unit condensing the scattered light transmitted to the first path to the first detector unit;
A second light adjusting unit disposed between the first detecting unit and the second condensing lens unit for blocking ambient light introduced into the light condensed by the second condensing lens unit;
A third condenser lens unit condensing the fluorescence transmitted to the second path to the second detector; And
And a third light adjusting unit disposed between the second detecting unit and the third condensing lens unit for blocking ambient light introduced into the light condensed by the third condensing lens unit. . 6. The method of claim 5,
Wherein the second detection unit is located outside the condensation focus of the second condenser lens unit, and the first detection unit is located outside the condensation focus of the third condenser lens unit. 7. The apparatus of claim 6, wherein the second light adjuster comprises:
Wherein the plurality of light control units include a plurality of light control units, and each of the plurality of light control units has an opening formed at a central portion thereof. 9. The apparatus of claim 8, wherein the plurality of light conditioning units comprise:
And a smaller aperture is formed and disposed adjacent to the focusing point of the second condenser lens part. 7. The apparatus of claim 6, wherein the third light adjuster comprises:
Characterized in that it comprises at least one light conditioning unit and the light conditioning unit has an opening formed at its center. The method according to claim 1,
Further comprising an optical stopper portion for stopping the outgoing light emitted to the second light outlets so as to block inflow of the ambient light in the sample room into the first light outlets. 12. The optical pickup apparatus according to claim 11,
And a cone member disposed so that a vertex thereof faces the path of the emitted light. The method according to claim 1,
And the measurement sample is introduced into the first focus of the elliptic mirror.

Images