KR101453681B1 - Apparatus to provide beam by using hybrid light source - Google Patents

Abstract

A beam irradiation device using a complex light source according to an embodiment comprises; a light source case which is closely mounted on an object lens of a microscope which obtains image information of a measured object; a light source generating unit which generates light; and a plurality of a near infrared irradiation units which is mounted on the light source case to be connected with the light source generating unit and provides a beam of a near infrared ray among lights provided from the light generating unit. The size and angle of the beam of the near infrared ray which is irradiated to the measured object from the near infrared irradiation units can be controlled. According to an embodiment of the present invention, the near infrared irradiation units which provide light of the near infrared ray is arranged to the edge of an object lens near to a measured object such as an eyeball. Therefore, reliable image information can be obtained and the size and angle of the beam of the near infrared ray which is generated from the near infrared irradiation units can be controlled. Also, optimum image information can be obtained by selectively controlling the size and angle of the beam of the near infrared ray according to the magnification of a microscope.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composite light source,

A beam irradiation apparatus using a composite light source is disclosed. More specifically, a beam irradiating apparatus using a composite light source capable of obtaining reliable image information by disposing a near infrared ray irradiating unit for providing near infrared ray light to a measurement target object, for example, an edge of an objective lens close to an eyeball, is disclosed.

Generally, in order to make a light source enter an ophthalmologic microscope, there is a method of arranging a beam splitter between a relay lens and an eyepiece inside a microscope, and a method of arranging a mirror at the center of both relay lenses.

Because of the optical systems that are placed in order to enter the light source in a general ophthalmologic microscope, the volume occupying the space becomes large and the optical loss also occurs. In addition, since the area of the irradiated light beam is fixed, more light than necessary is focused, giving fatigue to the eyeball, and there is a disadvantage that the recovery time after taking a microscope is prolonged.

In addition, since the light sources applied to the ophthalmologic microscope have high light intensities in the visible light range, such as halogen lamps, for example, when the eye surgery is in progress, And it takes a long time to recover due to the light source used even after the surgery.

An object of an embodiment of the present invention is to provide an image pickup apparatus capable of obtaining reliable image information by disposing a near infrared ray irradiating unit for providing near infrared ray light to a measurement target object such as an edge of an objective lens close to an eyeball, The present invention provides a beam irradiating apparatus using a compound light source capable of adjusting the angle of the near-infrared beam and adjusting the size of the near-infrared beam and selectively adjusting the magnification of the microscope according to the magnification of the microscope.

Another object of the present invention is to provide a near infrared ray SLD irradiating unit and a white light LED irradiating unit which can be used with a near infrared ray SLD irradiating unit as a near infrared ray irradiating unit and using a near infrared ray irradiating unit or a white light LED irradiating unit, And to provide a beam irradiating apparatus.

Another object of the present invention is to provide a beam irradiating apparatus using a compound light source which can arrange a near-infrared ray irradiating unit on the edge of an objective lens and can simplify an optical system of a near-infrared microscope.

A beam irradiation apparatus using a composite light source according to an embodiment of the present invention includes a light source case mounted adjacent to an objective lens of a microscope for acquiring image information of a measurement object; A light source for generating light; And a plurality of near infrared rays irradiating unit mounted on the light source case to be connected to the light source generating unit and providing a near infrared ray beam of light provided from the light source generating unit, The near infrared ray beam can be adjusted in size and angle. By this arrangement, it is possible to obtain reliable image information by disposing a near infrared ray irradiating unit for providing near infrared ray light to the measurement target object, for example, In addition, it is possible to adjust the angle of the near-infrared beam generated from the near-infrared ray irradiating unit and to adjust the size of the near-infrared ray beam, thereby enabling selective adjustment according to the magnification of the microscope.

According to one aspect, the near-infrared ray irradiating unit may be a near-infrared SLD irradiating unit formed of a superluminescent diode (SLD).

According to one aspect of the present invention, the near-infrared ray irradiating unit includes a laser diode (LD), a semiconductor optical amplifier (SOA), a titanium sapphire laser (Ti), a supercontinuum source may be applied.

According to one aspect, the plurality of near-infrared SLD irradiation units include: a housing in which an SLD collimator is mounted; A pair of adjustment lenses spaced apart in the housing, the pair of adjustment lenses adjusting a size of the beam of the near-infrared rays provided through the SLD collimator; And an angle adjusting member for adjusting an angle of incidence of the near-infrared ray beam by adjusting an angle of the housing.

According to one aspect of the present invention, there is provided an SLD light source module connected to the light source generating unit, receiving light from the light source generating unit, converting the light into near-infrared light and providing the light to the near- And an optical distributor for distributing the near-IR light generated from the SLD light source module to the plurality of near-infrared SLD irradiators.

According to one aspect, the optical splitter is a 1 × n optical splitter having one input and a plurality of outputs, and is a 1 × n optical splitter that includes a fiber optic based optical coupler, an optical fiber based optical power splitter, a planar optical waveguide optocoupler, a planar optical waveguide power splitter, Or an optical splitter.

According to an aspect of the present invention, the apparatus may further include a near-infrared LED illuminating unit mounted on the light source case and connected to the light source generating unit to illuminate a near-infrared beam among lights provided from the light source generating unit, using a light emitting diode (LED).

According to an aspect of the present invention, the apparatus may further include a white light LED irradiator mounted on the light source case and connected to the light source generator to irradiate white light among the light provided from the light source generator, using a light emitting diode (LED).

According to one aspect of the present invention, the apparatus may further include an LED light source module connected to the light source generating unit to receive the light from the light source generating unit, convert the light into near infrared ray light or white light, and provide the near infrared ray irradiating unit or the white light LED irradiating unit .

According to one aspect of the present invention, the light source case may be equipped with at least one of a red-green-blue (RGB) LED illuminating unit and a near-infrared laser diode for securing various colors.

According to one aspect, the beam irradiating device may be an apparatus applied to an eye near-infrared microscope for photographing an eyeball as the measurement object.

According to the embodiment of the present invention, it is possible to obtain reliable image information by disposing a near-infrared ray irradiating unit for providing near-infrared light to the measurement object, for example, the edge of the objective lens close to the eyeball, The angle of the beam can be adjusted and the size of the beam can be adjusted, so that it is possible to selectively adjust according to the magnification of the microscope, so that optimum image information can be obtained.

Further, according to the embodiment of the present invention, it is possible to use the near infrared ray SLD irradiating unit as the near infrared ray irradiating unit and the near infrared ray irradiating unit or the white light LED irradiating unit, thereby obtaining the optimum image information in consideration of the magnification of the microscope.

Further, according to the embodiment of the present invention, the near-infrared ray irradiating unit can be disposed at the edge of the objective lens, and the optical system of the near-infrared microscope can be simplified.

FIG. 1 is a projection view schematically showing a configuration of a beam irradiation apparatus using a composite light source according to an embodiment of the present invention.
Fig. 2 is a side view of part of Fig. 1. Fig.
FIG. 3A is a diagram showing a first state of the beam irradiation apparatus in FIG. 2, and FIG. 3B is a diagram showing a second state of the beam irradiation apparatus in FIG.
4A and 4B are views showing a beam irradiation apparatus according to another embodiment of the present invention.

Hereinafter, configurations and applications according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION The following description is one of many aspects of the claimed invention and the following description forms part of a detailed description of the present invention.

In the following description, well-known functions or constructions are not described in detail for the sake of clarity and conciseness.

FIG. 1 is a projection view schematically showing a configuration of a beam irradiation apparatus using a composite light source according to an embodiment of the present invention. FIG. 2 is a side view of part of FIG. 1, FIG. 3B is a view showing a second state of the beam irradiation device of FIG. 2. FIG.

As shown in these drawings, the beam irradiation apparatus 100 using a combined light source according to an embodiment of the present invention includes a microscope objective lens 103 for acquiring image information of a measurement target 101 (see FIG. 3) A light source case 110 mounted adjacent to the light source case 110; A plurality of near-infrared SLD irradiating units 120 mounted on the light source case 110 to be connected to the light source generating unit 120 and providing a near-infrared beam of light from the light source generating unit 120, (Not shown).

A near infrared ray irradiating unit 151 for irradiating a beam of near infrared rays and a white light LED irradiating unit for irradiating a white light, which are mounted on the light source case 110 so as to be partially exposed to the lower part of the light source case 110, 155).

The light source case 110 of this embodiment can be disposed at the position closest to the objective lens 103. [ Therefore, it is not necessary to provide a separate space for the optical system arrangement, so that the volume of the microscope to which the beam irradiation apparatus 100 using the composite light source of this embodiment is applied can be reduced.

The light source generating unit 120 generates light and supplies the generated light to the near-infrared SLD irradiating unit 160 or the LED irradiating units 151 and 155. The light generated from the light source 120 may be transmitted through two transmission paths, that is, an optical fiber 131 and a power cable 141. An SLD light source module 130 is provided on the path of the optical fiber 131 Infrared light can be transmitted onto the optical fiber 131 and the power cable 141 is provided with the LED light source module 140 and the near infrared ray light applied to the LED light sources 151 and 155 on the power cable 141 White light can be transported.

The near-infrared SLD irradiating unit 160 of the present embodiment is formed of a superluminescent diode (SLD), and can adjust the angle and the size of the beam to adjust the direction of the near- Lt; RTI ID = 0.0 > 101 < / RTI > 1, the near-infrared SLD irradiating unit 160 may be spaced apart from the light source case 110 by 180 degrees and may be connected to the light source 120 through an optical fiber 131.

As described above, the SLD light source module 130 may be mounted on the optical fiber connecting the light source 120 and the near-infrared SLD irradiator 160, and an optical distributor 135 may be mounted for optical distribution.

The SLD light source module 130 generates near-infrared light by receiving the light generated from the light source generating unit 120 and supplies the near-infrared light to the near-infrared SLD irradiating unit 160 through the optical distributor 135.

The optical distributor 135 can distribute the near-infrared light passing through the SLD light source module 130 and send it to the pair of the near-infrared SLD irradiator 160. The optical splitter 135 may be a 1 x n optical splitter having one input and a plurality of outputs.

Various optical distributors 135 such as an optical fiber based optical coupler, an optical fiber based optical power distributor, a planar optical waveguide optical coupler, a planar optical waveguide power distributor, an optical wavelength distributor, etc. can be applied to the optical distributor 135 of this embodiment have. However, the type of the optical distributor 135 is not limited thereto.

2, the near-infrared SLD irradiating unit 160 of the present embodiment includes a housing 161, an SLD collimator 163 connected to the optical fiber 131 in the housing 161, a housing 161, A pair of adjustment lenses 165 spaced apart from each other and an angle adjusting member 167 for adjusting the angle of the beam.

The SLD collimator 163 converts the near-infrared light distributed through the optical splitter 135 into a parallel beam. The distance between the pair of adjustment lenses 165 is adjustable so that the size of the beam can be adjusted and the amount of light transmitted to the measurement object 101, for example, the eyeball 101, can be adjusted.

The angle adjusting member 167 can adjust the angle of the housing 161 so that the near infrared ray beam passing through the pair of adjusting lenses 165 can be directed to the focus position of the objective lens 103 of the microscope, .

Referring to FIG. 3A, since a large amount of light is required in a narrow region when photographing at a high magnification using a microscope, it is common to irradiate a beam to be incident on the minimum region A1. Conversely, referring to FIG. 3B, In the case of the near-infrared SLD irradiating unit 160 of the present embodiment, it is possible not only to adjust the size of the beam but also to adjust the angle of the beam so that the high-magnification or low- Appropriate application is possible.

As described above, the near-infrared SLD irradiating unit 160 can adjust the angle of the beam as well as the size of the beam of the near-infrared rays so that accurate image information can be obtained with respect to the measurement target object 101. [ In addition, since the light provided from the near-infrared SLD irradiator 160 has a near-infrared region, damage to the eye can be minimized, and even after the eye 101 surgery is performed, rapid recovery is possible.

The near infrared ray SLD irradiating unit 160 includes a near infrared ray irradiating unit 151 for irradiating a beam of near infrared rays and a white light LED irradiating unit 155 for irradiating white light ).

1, the near-infrared LED irradiating unit 151 and the white light LED irradiating unit 155 are mounted on the light source case 110 to be partially exposed through the lower end of the light source case 110, They can be arranged alternately and regularly along the circumferential direction.

The near-infrared LED illuminating unit 151 is used together with the near-infrared SLD irradiating unit 160 to acquire accurate image information when the magnification of the microscope is low. The white light LED illuminating unit 155 illuminates the near-infrared SLD irradiating unit 160, For example, to obtain accurate image information when the magnification of the microscope is high.

In addition, when photographing using the white light LED irradiating unit 155, the entire region of the eye 101, which is the measurement target 101, is irradiated with a small amount of light with a small amount of light so that the surgeon can directly irradiate the eye (not shown) 101). In addition, when only a near-infrared ray beam is provided, there is a limit to the color sensation. When white light is applied, various colors sensation can be expressed, Or other tissues.

Further, when photographing is performed using the near-infrared LED irradiating unit 151 as well, it is possible to acquire a wide-area near infrared ray image at a low magnification.

As described above, according to the embodiment of the present invention, the near-infrared SLD irradiating unit 160 for providing near-infrared ray light at the edge of the measurement target body 101, for example, the objective lens 103 close to the eyeball 101, Infrared SLB irradiator 160 can adjust the angle of the near-infrared beam and adjust the size of the near-infrared light beam, so that it is possible to selectively adjust the magnification of the microscope according to the magnification of the microscope, There are advantages.

In addition, it is possible to use the near-infrared LED illuminating unit 151 or the white illuminating LED illuminating unit 155 together with the use of the near-infrared SLD irradiating unit 160, so that the microscope can obtain optimal image information in consideration of the magnification.

Hereinafter, a beam irradiating apparatus using a composite light source according to another embodiment of the present invention will be described, but a description of the same parts as those of the beam irradiating apparatus of the above-described embodiment will be omitted.

4A and 4B are views showing a beam irradiation apparatus according to another embodiment of the present invention.

As shown in the drawing, the beam irradiating apparatus 200 using the combined light source of the present embodiment includes a light source case 210, a near-infrared SLD irradiating unit 260, and the like. In the beam irradiating apparatus 100, Infrared LED irradiating unit 151 and the white-light LED irradiating unit 155 that are provided in the infrared ray irradiating unit (see FIG. 1). Instead, a near-infrared laser diode 251 and an RGB laser diode 255 may be provided. Although not shown, they may be arranged alternately and regularly along the circumferential direction of the light source case 210.

Here, the near-infrared laser diode 251 is equipped with a beam expanding lens 252, and the near-infrared beam emitted from the near-infrared laser diode 251 is expanded and provided to the measurement target 201, for example, the eye 201 .

As shown in FIGS. 4A and 4B, the angle and size of the beam generated from the near-infrared SLD irradiating unit 260 can be adjusted to adjust the angle and size of the beam according to the magnification of the microscope. For example, at a high magnification, the beam generated from the near-infrared SLD irradiating unit 260 can be collected into the narrow region B1 as shown in Fig. 4A, and on the contrary, when the magnification is low, 260 to a relatively large area B3, thereby obtaining optimal image information according to the magnification.

In the above-described embodiments, the near-infrared SLD irradiating unit to which the super-light emitting diode is applied from the near-infrared ray irradiating unit is described above. However, the present invention is not limited to this, and a laser diode (LD) ), A semiconductor optical amplifier (SOA), a titanium sapphire laser (Ti: Saphire laser), and a supercontinuum source may be applied.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: Beam irradiation device using a composite light source
110: Light source case
120: Light source generating unit
130: SLD light source module
135: optical distributor
140: LED light source module
151: near-infrared LED inspection unit
155: White light LED inspection part
160: Near Infrared SLD Investigation Section

Claims (11)

A light source case mounted adjacent to an objective lens of a microscope for acquiring image information of a measurement object;
A light source for generating light; And
A plurality of near-infrared rays irradiating unit mounted on the light source case to be connected to the light source generating unit, the plurality of near-infrared ray irradiating units providing a near-infrared beam of light provided from the light source generating unit;
/ RTI >
And the near-infrared ray beam irradiated from the near-infrared ray irradiating unit to the measurement object can be adjusted in size and angle.
The method according to claim 1,
Wherein the near-infrared ray irradiating unit is a near-infrared SLD irradiating unit formed of a superluminescent diode (SLD).
The method according to claim 1,
The near-infrared ray irradiating unit may be any one of a laser diode (LD), a semiconductor optical amplifier (SOA), a titanium sapphire laser (Ti), and a supercontinuum source for generating a near- A beam irradiation apparatus using a compound light source, which is a near infrared ray irradiation unit to which one is applied.
3. The method of claim 2,
Wherein the plurality of near-infrared SLD irradiators comprise:
A housing on which an SLD collimator is mounted;
A pair of adjustment lenses spaced apart in the housing, the pair of adjustment lenses adjusting a size of the beam of the near-infrared rays provided through the SLD collimator; And
And an angle adjusting member for adjusting an angle of incidence of the near-infrared ray beam by adjusting an angle of the housing.
3. The method of claim 2,
An SLD light source module connected to the light source generating unit for receiving light from the light source generating unit and converting the light into near-infrared light and providing the light to the near-infrared SLD irradiating unit; And
And an optical distributor for distributing the near-infrared light generated from the SLD light source module to the plurality of near-infrared SLD irradiators.
6. The method of claim 5,
The optical splitter is a 1 × n optical splitter having one input and a plurality of outputs, and is a 1 × n optical splitter that is either an optical fiber based optical coupler, an optical fiber based optical power splitter, a planar optical waveguide optical coupler, a planar optical waveguide power splitter, The optical splitter 135 of the beam splitter.
The method according to claim 1,
And a near infrared ray LED irradiator mounted on the light source case, the near infrared ray irradiator being connected to the light source generating unit and using a light emitting diode (LED) to irradiate a near infrared ray beam out of the light provided from the light source generating unit. .
8. The method of claim 7,
And a white light LED illuminating unit mounted on the light source case and connected to the light source generating unit to emit white light among light provided from the light source generating unit and using a light emitting diode (LED).
9. The method of claim 8,
And an LED light source module connected to the light source generating unit to receive the light from the light source generating unit and convert the light into near infrared light or white light to provide the near infrared ray irradiating unit or the white light LED irradiating unit. Device.
The method according to claim 1,
Wherein the light source case is provided with a composite light source capable of mounting at least one of a Red-Green-Blue (RGB) LED illuminating unit and a near-infrared laser diode for securing various colors.
The method according to claim 1,
Wherein the beam irradiating device is a device applied to an ocular near-infrared microscope for photographing an eyeball as the measurement object.

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