KR200302221Y1 - USB Camera Having Integral Lights - Google Patents

Abstract

The present invention relates to a USB camera having an integrated light that is equipped with a lighting device in the USB camera body at the same time, and can be used to quickly and conveniently replace the reduction / expansion lens module by a one-touch method.

The present invention provides an image detection sensor for converting a subject image into a digital image signal, an interface board mounted at one side, and an interface board for transferring a digital image to a PC through a USB port of a PC to a PC, and an interface board. A housing having a cylindrical extension portion opposed to the image detection sensor, a cylindrical coupling portion formed of a magnetic material inside the cylindrical extension portion and extending from the inside, and disposed between the cylindrical coupling portion and the cylindrical extension portion to light the subject. Illumination device including a plurality of high-brightness LED for irradiating the light, and a cylindrical magnet is embedded in the cylindrical module coupling portion protruding rear end, detachably coupled to the cylindrical extension of the housing and irradiated to the subject from the lighting device The image of the reflected subject is enlarged / reduced to make a difference with the image detection sensor inside the housing. It characterized by consisting of a lens module of the lock guide.

Description

USB Camera Having Integral Lights {USB Camera Having Integral Lights}

The present invention relates to a USB camera with integrated lighting, and in particular, a USB camera with integrated lighting that can be used to quickly and conveniently replace a reduction / enlargement lens module with a single touch while simultaneously providing a lighting device in the USB camera body. It is about.

For medical purposes, a camera system has been developed and used for observing a patient's affected area, especially teeth and oral cavity, for use in treatment.

For example, US Pat. No. 5,051,823 proposes an indirect intraoral video camera system using a charge coupled device (CCD). The system consists of a longitudinally extending handle with a buffer / driver interface inside and a camera with a CCD, color filter and lens assembly at one end of the handle.

The system inserts a camera into the oral cavity and photographs the affected part, and the analog image obtained through the interface is converted into a digital image signal and output.

However, since these systems do not have their own lighting devices, they cannot obtain high-resolution clear images of affected areas, and because they use a fixed magnification lens, the user cannot select the magnification of the lens as needed. There is a problem that can not be used directly connected to a PC or notebook computer, and must use a dedicated processing device.

On the other hand, the medical camera system disclosed in the Korean Utility Model Registration No. 204745 is equipped with a lens portion at one end of the pipe shape, CCD or USB camera is coupled to the cylinder portion extending to the rear end of the pipe shape, the pipe In the middle is a light source and a prism using a single LED. By separating the lens part from the camera part, this system can implement the lens part close to the affected part in the shape of a pipe, so that the inside of the ear or rectum as well as the mouth can be photographed without being limited by the viewing angle of the camera. By accurately inputting the video signal obtained through the USB camera to a PC, the patient can be treated at a remote location, and the general structure of the USB camera enables simple and low-cost implementation.

The medical camera system has a structure in which the lens part is fixed to the tip of the pipe, so that the user cannot select the magnification of the lens as needed to photograph the affected part, and since the structure uses a single LED, the luminance of the lighting device is applied to the industrial use. Is lacking, and has a housing structure in which it is impossible to employ a plurality of LEDs to increase the brightness.

In addition, the system is not equipped with a function for varying the brightness of the lighting device according to the condition of the portion to be photographed by the user has a disadvantage that the utilization is not smooth.

Moreover, the system is a non-contact type at a certain distance from the affected part, for example, having a structure that is not suitable for enlarging the surface tissue state of the skin or an object.

In addition, the conventional USB web camera, which is used to be connected to the USB port of a PC for remote video chatting or remote education, does not have a separate light source device, and thus it is not easy to use it because it is impossible to obtain clear images at night or outdoors. And, the general camera is provided with a separate lighting device box has a problem that the overall size increases.

Therefore, the present invention has been devised in view of the problems of the prior art, and its purpose is to provide an integrated lighting device on the USB camera body, and at the same time, the one-touch method to quickly and conveniently replace and use a reduction / expansion lens module. It is to provide a compact USB camera with a light.

Another object of the present invention is to provide a high-brightness lighting device that can be used in any day and night without limitation, and can be used by selecting a lens module of a suitable magnification according to the needs of industrial, medical, educational USB camera To provide.

Still another object of the present invention is to provide a lens module structure for a USB camera that can be fixedly coupled to the contact lens module to the light guide cap without removing the precision machining element of the part.

Another object of the present invention is to provide a USB camera that can be easily combined with a notebook PC to configure a high magnification portable microscope.

1 is a front view showing the entire USB camera with an integrated ring light according to the present invention,

2 is a perspective view illustrating a state in which a lens module part is removed from FIG. 1;

3A to 3C are front views, right side views, and axial cross-sectional views of the low magnification lens module portions of FIG. 1, respectively;

4A to 4C are front views, right side views, and axial recessed sectional views of the portion of the high magnification lens module in FIG. 1, respectively;

5 is a driving circuit diagram for the lighting apparatus used in the present invention.

* Explanation of Signs of Major Parts of Drawings *

One ; Housing 2; Power switch

4 ; Brightness control switch 5; cable

6; Cylindrical extension 7; Cylindrical coupling

8 ; Interface board 10; CCD

11; LED 12; Switching transistor

13; Microcomputer 13A; A / D Converter

14; Variable resistance 15; resistance

20; Lens module 20a; Low magnification lens module

21,31; Light guiding caps 21b and 31b; Through hole

22,32; Lens assemblies 22a, 32a; Lens group

23,33; Module coupling 24,34; magnet

25,35; Retaining ring 26,36; Elastic spring

30; High magnification lens module 37; Cylindrical movable body

40; Lighting equipment

In order to achieve the above object, the present invention is a USB camera equipped with an illumination device, an image detection sensor for converting an image reflected from a subject into a digital image signal, and the image detection sensor is mounted on one side and obtained through An interface board that converts a digital image of a subject into a serial signal for transferring to a PC through a USB port of a PC, and a cylindrical extension that protrudes in an area facing the image detection sensor while supporting the interface board therein. A housing having a portion, a cylindrical coupling portion formed of a magnetic material inside the cylindrical extension portion and having a diameter corresponding to the image detection sensor, and extending from the inside, and disposed between the cylindrical coupling portion and the cylindrical extension portion to irradiate light to the subject. Illumination device comprising a plurality of high-brightness LED to the rear end, and a protruding cylindrical module A cylindrical magnet is built in the coupling part, which is detachably coupled to the cylindrical extension part of the housing, and enlarges / reduces the subject image reflected from the illumination device to the subject to guide the image to the image detection sensor inside the housing. It consists of a lens module, wherein the lens module is composed of a plurality of lens module set so that the user can select a module having a desired magnification / magnification as needed, cylindrical extension using a magnet provided in the module coupling portion Provided is a USB camera having an integrated ring illumination, characterized in that the coupling / separation is made in one-touch manner with the inner cylindrical coupling portion.

The plurality of lens module sets may be implemented in any one of a contact type with a light guide cap or an optical guide or a non-contact type with the same removed.

In the case of the contact type, the low magnification lens module has a module coupling portion having a through hole formed in the center portion and a groove formed on the tip side thereof, a cylindrical magnet inserted into the inner peripheral portion of the rear end portion of the module coupling portion, and a rear end portion inserted into the groove of the module coupling portion. A lens assembly including a lens group for magnifying the image, a transparent plastic material having a hemispherical shape at the tip end thereof, and the module coupling part and the lens assembly inserted into and fixed in the center thereof and facing the lens group at the tip end thereof. It is characterized by consisting of a light guide cap that serves as a guide to focus the light irradiated from the LED through the through hole.

In this case, the low magnification lens module is a first coupling means for coupling between the outer periphery of the module coupling portion and the light guide cap inner peripheral portion, and is inserted into the outer peripheral portion of the lens assembly to fix the lens assembly at a predetermined position of the light guide cap without being spaced apart. And a second coupling means for fixing the position of the lens assembly positioned by the elastic spring by fixedly coupling the rear end of the module coupling portion to the rear end of the light guide cap.

In addition, the high magnification lens module has a through hole formed in a central portion and a cylindrical magnet provided in a cylindrical portion at an inner circumferential side of the rear end, a through hole is formed in a central portion, a recess is formed in the front end, and an inner circumferential portion of the rear coupled portion is formed in the module. A cylindrical movable body coupled to the movable body in an axial direction at an inner circumferential portion of the module coupling portion, an elastic spring inserted into an outer circumferential portion of the cylindrical movable body to elastically support the cylindrical movable body at the module coupling portion, and the cylindrical movable portion The rear end portion is inserted into the groove of the sieve and the lens assembly including an image magnifying lens group therein, the front end portion is made of a transparent plastic material having a hemispherical shape and the module coupling portion, the cylindrical movable body and The lens assembly is inserted and fixed and collects the light emitted from the LED through the through hole facing the lens group at the tip end. Which it is characterized in that the light guide is configured as a cap which serves as a guide.

In this case, the high magnification lens module preferably further includes a fixing ring for fixing the position of the lens assembly positioned by the elastic spring by fixedly coupling the rear end of the module coupling portion and the rear end of the light guide cap.

In addition, the illumination device is disposed in a ring shape between the cylindrical coupling portion and the cylindrical extension portion a plurality of high-brightness LED for irradiating light to the subject, and the control voltage according to the rotation of the brightness control switch exposed to the outside of the housing A microcomputer for converting and receiving a variable resistor for applying a voltage and a control voltage applied from the variable resistor into a digital signal using an A / D converter, and generating a square wave output signal modulated by a PWM method in response to the control voltage; It may be configured as a switching transistor for driving the LED inserted into the load according to the PWM square wave output signal.

As described above, the present invention provides a high-brightness lighting device that is equipped with an integrated lighting device on the USB camera body and at the same time can be quickly and conveniently replaced with a reduction / expansion lens module using a one-touch method. It can be used without limitation in day / night by being integrally installed, and it can be applied for industrial / medical / education by selecting lens module with suitable magnification according to need.

(Example)

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a front view showing the entire USB camera with an integrated ring illumination according to the present invention, Figure 2 is a perspective view showing a state in which the lens module portion removed from FIG.

1 and 2, a USB camera having an integrated ring illumination according to the present invention is a CCD or C-MOS image detection sensor (hereinafter referred to as a camera) inside a housing 1 made of a plastic material in a long rectangular tube shape. An interface board 8 equipped with a CCD 10 is provided, and a cylindrical housing extension 6 is opened in a portion facing the CCD 10 so that the tip portion has a cylindrical shape. Extends at right angles from the distal end of

In addition, the housing extension portion 6 of the housing 1 has a diameter corresponding to the CCD 10, and a cylindrical coupling portion 7 made of a magnetic body extends from the inside, and the cylindrical coupling portion 7 and the housing Between the extensions 6, a number of, for example, 14 high brightness LEDs 11 are arranged to form a ring-shaped lighting device 40.

On the housing extension 6 of the housing 1, light emitted from the LED 11 is irradiated to a subject requiring an enlarged image of a patient's skin, plant cells, or other industrial equipment that cannot be seen by the eye, and is reflected from the subject. The lens module 20 is detachably coupled to guide the image to the CCD 10 inside the housing by enlarging the image or to reduce and receive an image of a person's face in proximity.

The interface board 8 equipped with the CCD 10 uses a well-known configuration, and inputs a digital image of a subject obtained through the CCD 10 from a USB port of a PC through a cable 5 to process signals from the PC. It acts as an interface to convert it.

On the other hand, the lens module 20 is composed of a plurality of lens module set (20a, 30) so that the user can select a module having a zoom ratio of (-) 10 ~ 1000 times the desired as needed, respectively In the module coupling parts 23 and 33 protruding from the rear end of the lens module, cylindrical magnets 24 and 34 are built in the inner side, so that the module coupling parts 23 and 33 made of magnetic material are provided in the housing extension part 6. It has a structure that can be combined / separated in a one-touch manner with the cylindrical coupling portion 7 of.

A first embodiment of the low magnification lens module 20a is shown in FIGS. 3A-3C. 3A to 3C are front, right side and axial cross-sectional views, respectively, of the contact low magnification lens module portion in FIG. 1.

As shown, the low magnification lens module 20a includes a lens assembly 22 having a through hole formed in the center of the module coupling part 23 and a recessed lens group 22a therein. The rear end portion of the module coupling portion 23 and the outer periphery of the lens assembly 22 is coupled to the light guide cap 21 made of a transparent plastic material having a substantially hemispherical shape.

The light guide cap 21 has a through hole 21b formed at a distal end portion of the light guide cap 21 opposite to the lens group 22a. When the light guide cap 21 is coupled to the housing 1 as shown in FIG. ) To serve as a guide for focusing the light irradiated from the front end of the lens group (22a).

A male screw thread 23a is formed at the distal end of the module coupling part 23, and a female screw thread 21a is formed at the inner circumference of the light guide cap 21 to maintain a coupling state by screwing. At the rear end of the coupling portion 23, a fixing ring 25 for preventing separation of the module coupling portion 23 is coupled to a recess formed in the inner circumference of the light guide cap 21 and fixed or as described later in the second embodiment. The coupling between the annular protrusion of the module coupling portion and the groove of the light guide cap may be coupled in a screwed manner.

When the coupling between the module coupling part 23 and the lens assembly 22 and the light guide cap 21 is not stable and there is a gap or play, the center of the lens does not match the optical path axis, that is, the eccentricity or the focal length. The image is not formed on the CCD 10 or an image of a high resolution object is not obtained.

Accordingly, in the present invention, in addition to the above-described module coupling portion 23 and mounting of the screw coupling between the lens assembly 22 and the light guide cap 21 and the fixing ring 25, the elastic spring 26 is formed on the outer circumference of the lens assembly 22. By inserting the lens assembly 22 can be fixed to the set position of the light guide cap without being spaced apart, and as a result it is possible to avoid the precision machining of each component it is possible to save the production cost. That is, the spring 26 and the lens assembly 22 and the module coupling part 23 are first screwed to the light guide cap 21 to adjust the focal length between the lens and the CCD 10, and then the fixing ring 25 is coupled to the light guide cap 21. In this case, the position of the lens assembly 22 is supported at a position stably set by the elastic spring 26.

Meanwhile, a second embodiment of the high magnification lens module 30 is shown in Figs. 4A to 4C. 4A-4C are front, right, and axial recessed cross-sectional views, respectively, of the high magnification lens module portion in FIG. 1.

As shown, the high magnification lens module 30 has a through-hole formed in the center of the module coupling portion 33 and an elastic spring 36 is coupled to the outer circumference to move the cylinder in the axial direction at the inner circumference of the module coupling portion. (37) is combined.

In addition, the cylindrical movable body 37 has a rear end portion of the lens assembly 32 including the lens group 33a for image enlargement inserted into the recess formed on the tip end side thereof, and the module coupling portion 33 and the lens assembly 32 are inserted therein. ), The light guide cap 31 made of a transparent plastic material having a semi-spherical shape at the front end and a cylindrical shape at the rear end thereof is coupled to the outer circumference.

Similar to the light guiding cap 21 of the first embodiment, the light guiding cap 31 has a through hole 31b formed at a distal end of the light guiding cap 21 opposite to the lens group 32a. Likewise, when coupled to the housing 1 is operated to act as a guide that focuses the light emitted from the LED 11 to the tip of the lens group (32a).

In addition, a male thread 33a is formed at the outer peripheral end of the cylindrical movable body 37, and a female thread 31a is formed at the inner circumferential portion of the light guide cap 31 to maintain a coupling state by screwing, and module coupling. At the rear end of the part 33, a fixing ring 35 for preventing separation of the module coupling part 33 is coupled to a recess formed in the inner circumference of the light guide cap 31 and fixed or an annular protrusion 33a of the module coupling part. And it can be coupled in a screwed manner between the groove of the light guide cap 31.

Also in the second embodiment, as in the first embodiment, the coupling between the module coupling part 33 and the lens assembly 32 and the light guide cap 31 is stable and there is no shaking or play, and the center of the lens is the optical path axis. The elastic spring 36 is employed to maintain the set focal length without being eccentric in matching with.

In the high magnification lens module 30 of the second embodiment, since the focal length is extremely short, the elastic spring 36 cannot be installed at the front end of the lens as in the first embodiment. In this case, when the elastic spring 36 is changed to the structure inserted between the module coupling portion 33 and the cylindrical movable body 37, the lens assembly 32 and the cylindrical movable body 37 is the module coupling portion 33 It becomes the state which can flow back and forth within.

Therefore, the lens assembly 32, the cylindrical movable body 37, and the module coupling part 33 are first inserted into the light guide cap 31, and then screwed to adjust the focal length between the lens and the CCD 10, and then the fixing ring. When the 35 is engaged, the position of the lens assembly 32 is supported at a position stably set by the elastic spring 36.

Accordingly, in the second embodiment of the present invention, it is possible to insert the elastic spring 36 to remove the backlash to fix the lens assembly 32 to the set position of the light guide cap 31 without being spaced apart. As a result, the precision machining of each part can be avoided, thereby reducing the production cost.

As described above, in the lens modules 20a and 30 of the first and second embodiments, cylindrical magnets 24 and 34 are embedded inside the module coupling parts 23 and 33 at the rear end thereof, and thus the housing extension part 6 is provided. The inner cylindrical coupling portion 7 and the magnet (magnet) coupling can be made easily and quickly in one-touch coupling and separation.

In this case, in the magnetic coupling method, a slight fluctuation in focal length that may occur when the general screw coupling method is employed in the coupling part, an eccentricity of the lens (ie, the parallelism between the lens and the CCD), and a change in the screw thread due to frequent replacement are required. The wear and replacement time is long, and the inconvenience of use can be eliminated, and the focal length and the optical central axis are automatically matched between the lens and the CCD, and the parallelism between the lens and the CCD is automatically set.

On the other hand, in the embodiment of the present invention described above, since the ring illumination device is configured by using a plurality of high-brightness LEDs 11 arranged in a ring shape on the outer circumference of the CCD 10, the light guide cap ( Illumination irradiated to the subject through 21 and 31 becomes uniform.

In addition, in the above-described embodiment, the illuminating device is a ring illuminating device in which a plurality of high-brightness LEDs 11 are arranged in a ring shape on the outer circumference of the CCD 10, but the LED 11 is formed in a square or top or bottom other than the ring shape. Even when the structure is arranged in a straight line on the left and right side, a partial shade part is hardly generated on the surface to be obtained, and uniform illumination is obtained as a whole.

In addition, the lens modules 20a and 30 of the first and second embodiments are used in a contact manner, and thus the contact surfaces of the subjects to be photographed are in contact with the front ends of the light guide caps 21 and 31. In such a contact structure, the same light focusing effect is obtained on the contact surface even when the inner surface is plated instead of the transparent light guide cap and a metal light guide having an inverted triangular cross section is used.

However, the present invention is not limited thereto, and the light guide cap is removed, and when the lens assembly and the module coupling part are supported by using a metal optical guide having a triangular structure with a separate cross section, it is also easy for those skilled in the art to deform to a non-contact lens module. Can be done.

In the case of the non-contact type by providing a ring illumination device of high brightness integrally, it is possible to simply obtain an enlarged image of a subject away from a predetermined distance, so that it can be applied to various applications as an industrial USB camera.

Furthermore, in the non-contact type, in the present invention, a lens module having a negative (-) magnification in addition to the lens modules of the magnification as described above in the first and second embodiments is detachably attached to the cylindrical coupling portion 7 of the housing 1. By combining, a web camera can be constructed.

That is, in the case of the web camera having the negative magnification, the tip end portion of the lens assembly is positioned such that the lens group 22a, 32a of the lens assembly 22, 32 of the lens module is positioned 3 to 4 mm from the CCD 10. When the lens is disposed in the rear end of the assembly is provided with a cylindrical magnet magnetically coupled to the cylindrical coupling portion 7 and the removable coupling, the light guide cap is omitted so that a wide angle of view, equipped with a lighting device A web camera is formed.

Meanwhile, in the present invention, a plurality of high brightness LEDs 11 arranged in a ring shape are used as the ring illumination device 40 of the camera, and a driving circuit diagram thereof is shown in FIG. 5.

The ring illumination device 40 of the present invention is driven using a 6V power supply (VDD) provided as a power source of a USB camera from a USB port of a PC so that the brightness of a plurality of high-brightness LEDs 11 can be changed according to a user's needs. do.

In addition, the brightness of the LED 11 is made by the current control method. For this purpose, an 8-bit microcontroller having a program memory and an operation memory, for example, a model number PIC16C72A-04 / SP, has a clock of the clock oscillator. Frequency is 4MHz, PWM (Pulse Width Modulation) Duty Ratio: 50:50, A / D Converter (Resolution: 8bit (1/256)) is built in by using microcomputer 41 integrated Can be.

In this case, the ring illumination device 40 is connected to a variable resistor 14 to which a control voltage is applied to a PWM (pulse width modulation) port of the microcomputer 13 so that the illumination of the lighting device can be constantly controlled. Is connected to the base of the switching transistor 12 via a resistor 15 at the output of the circuit, and an LED 11 is inserted into the collector terminal as a load of the transistor 12.

The microcomputer 13 converts the control voltage applied from the variable resistor 14 into a digital signal with a resolution of 1/256 using the A / D converter 13a, and outputs the microcomputer 13 in a PWM manner. The modulated square wave is output.

In this case, the microcomputer 13 controls the brightness of the LED 11 by controlling the output applied to the LED 11 by varying the pulse width of the square wave in a PWM manner according to the control voltage applied to the PWM port.

In the configuration as described above, the brightness control switch 4 for adjusting the variable resistor 14 is partially exposed to the outside of the housing 1. As the user rotates it, when the control voltage applied from the variable resistor 14 to the microcomputer 13 is changed and read as a digital value through the A / D converter 13a, the microcomputer 13 responds to the output voltage. The pulse width is varied to output a PWM square wave to the LED driving switching transistor 12. As a result, the turn-on period of the switching transistor 12 increases in proportion to the pulse width of the PWM output voltage. As a result, the driving time of the LED 11 is increased, thereby controlling the brightness of the lighting device.

In the above embodiment, since the AD converter 13a is 8 bits with respect to the control voltage, resolution is possible up to 1/256, but if the microcomputer is changed to a higher model, the resolution of the A / D converter can be increased to 1/1024 to 1/4096. Precise brightness control can be achieved. It is also possible to simply add multiple LED lighting devices as the PWM port expands.

In the above embodiment, since it is implemented by using a microcomputer, it is also possible to control the brightness as the user desires by modifying the control program, and the circuit is simpler than the analog method, and thus the manufacturing cost is low, but it is not a digital method. It is also possible to implement a brightness control circuit in an analog manner.

In addition, reference numeral 2 in FIG. 1 denotes a power switch.

As described above, in the present invention, a high-brightness lighting device is integrally installed on the main body of the USB camera, and at the same time, the reduction / expansion lens module can be quickly and conveniently replaced by a one-touch method. It is equipped with a high brightness lighting device that can adjust the brightness by using the 6V power supply and the microcomputer provided in the camera.It can be used without restriction in day / night, and the lens module of suitable magnification can be selected as needed. Applicable for education.

In addition, by combining a notebook PC and the USB camera of the present invention, it is possible to simply configure a high magnification portable microscope, which can be applied to various applications such as field trips.

In the above, the present invention has been illustrated and described by way of specific preferred embodiments, but the present invention is not limited to the above-described embodiments and the general knowledge in the art to which the present invention belongs without departing from the spirit of the present invention. Various changes and modifications can be made by those who have

Claims (7)

In a USB camera equipped with a lighting device, An image detection sensor 10 for converting an image reflected from a subject into a digital image signal; The image detection sensor 10 is mounted on one side and the interface board (8) for converting the digital image of the subject obtained through this through a USB port of the PC to a serial signal for transmission to the PC by the USB method, A housing (1) supporting the interface board therein and having a cylindrical extension portion (6) projecting in a portion opposed to the image detection sensor; A cylindrical coupling part 7 formed of a magnetic material inside the cylindrical extension part and having a diameter corresponding to the image detection sensor and extending from the inside; An illumination device 40 disposed between the cylindrical coupling part and the cylindrical extension part and including a plurality of high brightness LEDs 11 for irradiating light onto a subject; Cylindrical magnets 24 and 34 are built into the cylindrical module coupling parts 23 and 33 protruding from the rear end thereof, and are detachably coupled to the cylindrical extension part of the housing, and the subject image is reflected from the illumination device to the subject. It is composed of a lens module 20 for guiding the image to the image detection sensor inside the housing by expanding / contracting, The lens module is composed of a plurality of lens module sets (20a, 30) so that the user can select a module having a desired magnification ratio as needed, and the inside of the cylindrical extension using a magnet provided in the module coupling portion USB camera with integrated lighting, characterized in that the coupling / separation is performed in a one-touch manner with the cylindrical coupling. The method of claim 1, wherein the plurality of lens module sets A module coupling portion 23 having a through hole formed in the center portion and a groove formed on the tip side; A cylindrical magnet 24 inserted into an inner circumferential end of the module coupling part; A lens assembly 22 having a rear end portion inserted into a recess of the module coupling part and including an image magnifying lens group 22a therein; The front end portion is made of a transparent plastic material having a hemispherical shape, and the module coupling portion 23 and the lens assembly 22 are inserted into and fixed inside the through-hole formed in the center thereof, and the through hole 21b facing the lens group 22a of the front end portion. USB camera having an integrated illumination, characterized in that it comprises a low magnification lens module (20a) consisting of a light guide cap 21 to serve as a guide to focus the light irradiated from the LED (11). According to claim 2, First coupling means (23a, 21a) for coupling between the outer peripheral end of the module coupling portion 23 and the light guide cap inner peripheral portion, An elastic spring 26 inserted into an outer circumference of the lens assembly 22 to fix the lens assembly to a predetermined position of the light guide cap without being spaced apart; And a second coupling means 25 for fixing the rear end of the module coupling part 23 and the rear end of the light guide cap to fix the position of the lens assembly positioned by the elastic spring. Equipped with USB camera. The method of claim 1, wherein the plurality of lens module sets A module engaging portion 33 having a through hole formed in the center portion and a cylindrical magnet 34 provided in the inner peripheral portion of the rear end portion, A cylindrical movable body 37 formed with a through-hole in the central portion, a recess formed in the distal end portion, and a rear end coupled to the inner circumferential portion of the module coupling portion and movable along the axial direction at the inner circumference of the module coupling portion; An elastic spring 36 inserted into an outer circumference of the cylindrical movable body to elastically support the cylindrical movable body to a module coupling part; A lens assembly 32 having a rear end portion inserted into a recess of the cylindrical movable body and including an image magnifying lens group 32a therein; The front end portion is made of a transparent plastic material having a hemispherical shape, and the module coupling portion 33, the cylindrical movable body 37, and the lens assembly 32 are inserted and fixed inside the penetrating central portion thereof. USB camera having an integrated illumination, characterized in that it comprises a high magnification lens module (30) consisting of a light guide cap (31) that serves as a guide to focus the light irradiated from the LED (11) to the opposite through hole (31b). The fixing ring of claim 4, wherein the rear end of the module coupling part 33 and the rear end of the light guide cap 31 are fixedly coupled to fix the position of the lens assembly 32 positioned by the elastic spring 36. 35) USB camera with integrated lighting, characterized in that it further comprises. The method of claim 1, wherein the lighting device 40 A plurality of high brightness LEDs 11 arranged in a ring shape between the cylindrical coupling part and the cylindrical extension part for irradiating light to a subject; Variable resistor 14 for applying a control voltage in accordance with the rotation of the brightness control switch 4 exposed to the outside of the housing, A microcomputer 13 for converting the control voltage applied from the variable resistor 14 into a digital signal using the A / D converter 13a and generating a square wave output signal modulated by a PWM method in response to the control voltage; , And a switching transistor (12) for driving the LED (11) inserted into the load according to the PWM square wave output signal. The USB camera of claim 1, wherein the plurality of lens module sets are each contactless.