KR20090092492A - Multifunction Digital Camera - Google Patents

Abstract

A multifunctional digital camera is provided to expand and photograph a part which is difficult to be directly observed by the naked eye. A handle unit(100) comprises the followings: an outer body(110) having a size suitable for being held by a hand of a user; a CMOS sensor substrate in which a CMOS sensor is mounted; and a main board which is horizontally installed inside the outer body. The CMOS sensor converts an image, enlarged through a light guide unit(300) and a lens controller(200), into an electrical signal. The main board includes an image memory for storing the converted image.

Description

Multifunction Digital Camera {Multifunction Digital Camera}

The present invention relates to a multi-function digital camera, and more specifically to the skin or scalp or mouth, ear, nasal, such as the enlarged observation of a specific part of the human body, or when observing a test sample, such as when observing the precision parts directly The present invention relates to a multifunctional digital camera used in an imaging system that can be magnified and visually observed through a computer monitor or a TV monitor.

In general, the imaging system is composed of a digital camera that enlarges the image of the object under test and converts the captured image into an electrical signal, and an image processing device that receives the electrical image signal through a cable and displays it on a monitor. .

Conventional digital cameras used in such an imaging system include a main board having an image memory and a touch switch installed therein, a handle provided with a CCD or a CMOS sensor, and a lens unit coupled to an outer end of the handle to move the lens group back and forth. The lens control unit, a light emitting diode for emitting light at the tip of the lens control unit, and a light guide portion with a cap for protecting the light emitting diode.

Accordingly, the light emitted from the light emitting diode is reflected by the object under test and the reflected light reflected by the object under test is magnified through the magnification conversion lens group and the image magnifying lens group, and the electrical image signal is transmitted from the CMOS sensor (or CCD sensor). Is converted to. The electrical video signal is input to the camera controller through a cable, and the video signal processed by the camera controller is displayed on a monitor of the image processing apparatus.

However, the imaging system according to the prior art has a problem in that the object to be inspected cannot be picked up accurately because the object cannot be uniformly illuminated due to the straightness of the light emitted from the light emitting diode.

In addition, the reflected light reflected from the object under test is transmitted to the CMOS sensor through the lens group to be converted into an image signal, the light passing through the lens group is reflected on the surface of the CMOS sensor, the light reflected from the CMOS sensor Since the light is reflected back from the lens surface of the lens group and re-entered into the CMOS sensor and then converted into an image signal, there is a problem that image quality is deteriorated, such that images are overlapped and image quality is not clear and fine structures are not identified.

Therefore, the present invention has been made to solve the fundamental problems of the prior art, the main object of the present invention is to accurately pick up the object to be irradiated with a uniform brightness of light on the object to be inspected, reflected by the CCD or CMOS sensor It is to provide a multifunctional digital camera that scatters the light and cleans and clarifies the image quality of the image converted into an electric video signal.

In addition, another object of the present invention is a simple structure, easy to use, and can be easily connected to a personal computer or TV monitor through a USB port or a TV video port to enlarge or observe a specific part of the human body in a general home or Oriental medicine, or school It is to provide a multifunctional digital camera that can be used for observing experimental samples in a laboratory, and can be easily used at a low price when magnifying a precision part in a small factory.

The present invention for achieving the above object is provided with an external body having a suitable size to be gripped by the user's hand and is equipped with a main board and a CCD or CMOS sensor is installed in the image memory, a text switch inside the outer body. A digital part comprising a handle part, a lens control part coupled to an outer end of the handle part to move the lens group back and forth, a light emitting diode emitting light to the tip of the lens adjusting part, and a light guide part having a cap for protecting the light emitting diode; In the camera,

In front of the light emitting diode is provided with a diffuser plate for uniformly diffusing the light emitted from the light emitting diode to the front surface to provide a light of uniform brightness to the object under test, and reflected light reflected from the object under test to the rear end of the lens group And a first space part having diffuse reflection means for scattering light reflected from a CCD or CMOS sensor converted into an image signal, so that the image quality of the image converted into the electric image signal is provided clearly and clearly. .

The lens adjusting unit has an inner cylinder provided with guide grooves in the longitudinal direction on both sides thereof, an outer cylinder provided with a spiral groove rotatably coupled to an outer side of the inner cylinder and communicating with a guide groove of the inner cylinder on an outer circumferential surface thereof, and an outer side of the outer cylinder. A case to cover, an adjustment part protruding outward from the case at one end of the outer cylinder to rotate the outer cylinder on the outer circumferential surface of the case, and inserted into the inner cylinder to penetrate the guide groove of the inner cylinder and the spiral groove of the outer cylinder The protrusion is made of a lens group provided on both sides of the outer circumference, the lens group is characterized in that the protrusion is guided to the spiral groove of the outer cylinder and the guide groove of the inner cylinder by the adjustment of the control unit for rotating the outer cylinder to move forward and backward It is done.

The rear end of the inner cylinder is characterized in that the first space portion is provided with a diffuse reflection means for scattering the light reflected from the object to be reflected is reflected by the CCD or CMOS sensor.

In addition, the inner cylinder has a guide groove for guiding the bulging rods of the lens group in the longitudinal direction on both sides, and has an installation groove in which a power line for supplying power to the light emitting diode is provided on one side of the outer circumferential surface thereof, and the outer end of the handle portion at the rear end thereof. A flange portion coupled to and a second space portion for scattering light reflected from the CCD or CMOS sensor are provided inside the flange portion.

The outer cylinder is provided on the outer circumferential surface with a spiral groove through which the bulging bar of the lens group penetrates, and at one end thereof is provided with a control unit for rotating the outer cylinder to be rotatably coupled to the outside of the inner cylinder.

The lens group includes a cylindrical lens body for fixing one or more lenses, a plurality of spacers formed on an inner circumferential surface of the lens body to maintain the plurality of lenses at a predetermined distance, and protruding to both sides on an outer circumferential surface of the lens body. Two protrusions formed and a first space portion for scattering the light reflected from the CMOS sensor at the rear end of the inner peripheral surface of the lens body.

The light emitting diode of the light guiding part is radially installed on a light emitting diode substrate having a through groove which is coupled to the case front end of the lens adjusting part and has a through hole for receiving the reflected light reflected from the object under test, and the diffusion plate is coupled to the light emitting diode substrate. It is provided with a coupling rod is provided on the front of the light emitting diode and the center is provided with an inlet hole for the reflected light reflected from the inspection object.

The digital camera further includes a pedestal for supporting the light guide unit to be spaced apart from the bottom by a predetermined distance so that the digital camera can be used as a microscope.

As described above, the multi-function digital camera of the present invention includes a diffuser plate for uniformly diffusing the light emitted from the light emitting diode to the front surface to provide light of uniform brightness to the object under test, and the reflected light reflected from the object under test is The first and second spaces scattering the light reflected from the CCD or CMOS sensor provide clean and clear picture quality of the image converted into the electric video signal, and the fine structure of the object can be easily identified for accurate observation. There is an effect of improving the reliability of the product made.

In addition, it is easy to use due to its simple structure, and can be easily connected to a personal computer or a TV monitor through a USB port or a TV video port. There is an effect of improving the practicality and marketability.

1 is a perspective view of a multifunction digital camera according to the present invention;

Figure 2 is an exploded perspective view showing a coupling relationship of the multifunction digital camera according to the present invention.

3 is a cross-sectional view showing the internal structure of a multifunctional digital camera according to the present invention.

Figure 4 is a half cross-sectional view showing a coupling relationship of the lens control unit in the multifunction digital camera according to the present invention.

5 is a cross-sectional view showing an example of a lens group in the multifunction digital camera according to the present invention.

6 is a perspective view illustrating a coupling plate of a light guide unit in a multifunctional digital camera according to the present invention;

7 is a perspective view showing a pedestal for supporting a multifunctional digital camera according to the present invention.

       Explanation of symbols on the main parts of the drawings

       100: handle 110: outer body

       120: CMOS sensor 130: CMOS sensor substrate

       140: motherboard 150: LED display window

       160: switch 200: lens control unit

       210: inner cylinder 212: guide groove

       218: second space portion 220: outer cylinder

       222: spiral groove 230: case

       240: control unit 250: lens group

       256: stone tongue rod 258: first space part

       300: light guide portion 310: light emitting diode

       320: light emitting diode substrate 330: diffusion plate

       340: cap 400: pedestal

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As attached, Figure 1 is a perspective view showing a multifunction digital camera according to the invention, Figure 2 is an exploded perspective view showing a coupling relationship of the multifunction digital camera according to the present invention, Figure 3 is a multifunction digital according to the present invention 4 is a cross-sectional view showing the internal structure of the camera, Figure 4 is a cross-sectional view showing a coupling relationship of the lens control unit in the multifunction digital camera according to the invention, Figure 5 shows an example of a lens group in the multifunction digital camera according to the present invention 6 is a cross-sectional view, and FIG. 6 is a perspective view showing the coupling plate coupling relationship of the light guide portion in the multifunction digital camera according to the present invention.

As shown, the multi-function digital camera according to the present invention includes a handle part 100, a lens control part 200, and a light guide part 300.

The handle part 100 has an outer body 110 having a suitable size so as to be gripped by a user's hand, and is installed perpendicular to the inner front of the outer body 110, and a CMOS sensor 120 (or CCD sensor) is mounted thereon. The CMOS sensor substrate 130, the main board 140 installed horizontally inside the outer body 110, and the LED display window 150 and two switches 160 are provided on the outer peripheral surface of the outer body.

In this case, the CMOS sensor 120 converts the image enlarged by the light guide unit 300 and the lens control unit 200 into an electrical signal.

The main board 140 includes an image memory 141 for storing an image converted into an electrical signal, a text switch 142 for turning on / off a digital camera or turning on / off a light emitting diode, and a personal computer. USB ports 143 to be connected and LEDs 144 for displaying the operating states of the digital camera to the outside are mounted, and circuits for electrically connecting them are wired.

In this case, the switch 160 is in contact with the text switch 142 of the main board, the LED display window 150 is provided on the top of the LED (144).

The lens adjustment unit 200 is an inner cylinder 210 fixed to the tip of the outer body 110 of the handle portion 100, an outer cylinder 220 rotatably coupled to the outside of the inner cylinder 210, and the outer cylinder Case 230 to cover the outside of the 220, and the adjustment portion protruding out of the case 230 from one end of the outer cylinder 220 to rotate the outer cylinder 220 on the outer peripheral surface of the case 230 And a lens group 250 inserted into the inner cylinder 210 and moved forward and backward according to the rotation of the outer cylinder 220 to enlarge the picked-up image at an appropriate magnification.

The inner cylinder 210 is provided with a guide groove 212 for guiding the lens group 250 in the longitudinal direction to both sides, and a laying groove 214 in which a power line 180 for supplying power to the light emitting diode is installed on one side of an outer circumferential surface thereof. The second end is provided with a flange portion 216 coupled to the front end of the outer body 110 and the diffuse reflection means for scattering light reflected from the CMOS sensor 120 inside the flange portion 216 at the rear end thereof. The space portion 218 is formed. In addition, a third space portion 318 is formed in the inner cylinder 210 to allow the lens group 250 to move and to have diffuse reflection means for scattering the light reflected from the CMOS sensor 120. It is.

The diffuse reflection means is a scratch or diffuse reflection coating formed on the inner circumferential surfaces of the second space portion 218 and the third space portion 318 to irregularly surface the second space portion 258 and the third space portion 318. The light reflected from the CMOS sensor 120 is prevented from being reflected again.

In addition, one side of the flange portion 216 is formed with a through hole 170 through which the power line 180 for supplying power to the light emitting diode of the light guide portion 300 passes.

The outer cylinder 220 is provided with a spiral groove 222 communicating with the guide groove 212 of the inner cylinder on the outer peripheral surface is rotatably coupled to the outside of the inner cylinder (210).

One end of the outer cylinder 220 is provided with a control unit 240 for rotating the outer cylinder and the control unit 240 to protrude to the outside of the case 230 to rotate the outer cylinder on the outer peripheral surface of the case 230 It is provided.

At this time, the outer surface of the adjustment unit 240 is formed by the non-slip surface to facilitate the rotation of the outer cylinder 220.

As shown in FIG. 5, the lens group 250 includes a cylindrical lens body 252 for fixing one or more lenses 251 and the lens body so as to maintain the plurality of lenses 251 at a predetermined distance apart. A plurality of spacers 254 formed on the inner circumferential surface of the 252, two protruding rods 256 protruding to both sides of the outer circumferential surface of the lens body 252, and a CMOS sensor at the rear end of the inner circumferential surface of the lens body 252 The first space portion 258 is provided with diffuse reflection means for scattering the light reflected from the 120.

The diffuse reflection means is a scratch or diffuse reflection coating formed on the inner circumferential surface of the first space portion 258 to irregularize the surface of the first space portion 258 to prevent the light reflected from the CMOS sensor 120 from being reflected back.

As shown in FIG. 4, the lens adjusting unit 200 penetrates through the guide grooves 212 of the inner cylinder and is inserted into the spiral groove 222 of the outer cylinder as shown in FIG. 4.

Accordingly, when the outer cylinder 220 is rotated by adjusting the adjusting unit 240, the spiral groove 222 of the outer cylinder is rotated to press the protrusion rod 256 of the lens group 250 forward and backward and the inner cylinder 210. Since the direction of movement is limited by the guide groove 212 formed in the), the lens group 250 is moved only in the front-rear direction.

The distance between the object to be inspected and the lens group 250 and the distance ratio between the lens group 250 and the CMOS sensor 120 are changed according to the horizontal movement of the lens group 250 to select an appropriate magnification.

As such, the magnification and focus of the digital camera are determined by the rotation of the outer cylinder 220.

Therefore, in order to accurately focus at a specific magnification, it is preferable to increase the number of the spiral grooves 222 of the outer cylinder 220 so that the outer cylinder 220 is minutely rotated.

In addition, the adjustment unit 240 for rotating the outer cylinder 220 may protrude to the outside of the case 230 to rotate the outer cylinder on the outer peripheral surface of the case 230, the hassle of having to turn the entire case 230 Without the simple adjustment of the adjustment unit 240 can move the lens group 250 in the front and rear direction has a very convenient structure of operation and use.

The light guide unit 300 is coupled to the front end of the case 230 of the lens control unit 200 and emits light, and is provided in front of the light emitting diode 310 to provide uniform brightness to the object under test. A diffuser plate 330 for uniformly diffusing the light emitted from the light emitting diode to the light to provide a light of the light emitting diode, and is detachably installed at the tip of the case 230 of the lens control unit 200 and the light emitting diode 310 and The cap 340 protects the diffusion plate 330.

The light emitting diode 310 of the light guide part 300 is coupled to the front end of the case 230 of the lens control part 200 and has a light emitting diode substrate having a through groove 322 in which reflected light reflected from an object under test is received at the center thereof. It is radially installed at 320.

In this case, a power supply line 180 is connected to the light emitting diode substrate 320, and a coupling hole 324 to which the diffusion plate 330 is coupled is provided.

The diffusion plate 330 is provided with a coupling rod 332 coupled to the coupling hole 324 of the light emitting diode substrate is installed on the front surface of the light emitting diode 310, the center of the inlet hole is reflected light reflected from the object under test 334 is provided.

The diffusion plate is made of a transparent or translucent light transmissive material such as polycarbonate (PC), polymethylmethacrylate (PMMA), acrylic, epoxy, polyethylene terephthalate (PET), or melamine resin. The diffusion plate may be formed of one or more diffusion films, or a predetermined diffusion groove may be formed on the surface thereof.

The cap 340 secures the light emitting diode substrate 320 and protects the light emitting diode 310 and the diffusion plate 330, and has a pointed transparent window for easy observation of narrow holes such as the ear and the nose. It is preferable to provide with.

According to the present invention having the above-described configuration, when a test object is photographed, when a text switch is turned on to apply power to a digital camera and a light emitting diode, light is emitted from the light emitting diode 310, and the light emitting diode 310 The emitted light is uniformly diffused in the diffusion plate 330 and then incident to provide light of uniform brightness to the object under test.

Light uniformly radiated to the object to be inspected is reflected by the object to be inspected, and the reflected light that picks up the correct image is transmitted to the lens group 250. At this time, the user adjusts the adjuster 240 to properly rotate the outer cylinder 220 to adjust the magnification and focus.

The magnified and focused image is partially reflected by the CMOS sensor 120 when it is approached to the CMOS sensor 120 to be converted into an electrical signal. The light reflected by the CMOS sensor 120 is a lens group. Scattered from the first space portion 258 with the diffuse reflection means behind the 250 and the second space portion 218 formed at the rear end of the inner cylinder 210 and provided with the diffuse reflection means to the CMOS sensor 120 It does not reenter. In addition, when the lens group 250 is moved forward, the light reflected from the CMOS sensor 120 is scattered in the third space 318 provided with the diffuse reflection means in the inner cylinder 210, the CMOS Do not re-enter the sensor 120.

Then, only the image that is accurately incident on the CMOS sensor 120 is converted into an electrical signal and transmitted to the personal computer through a USB cable connected to the USB port 143 of the main board 140. The software is run to display the captured image on a computer monitor.

The image displayed on the computer monitor picks up the correct image of the object under uniform light through the diffuser plate, and the light reflected from the CMOS sensor is scattered in the first space portion and the second space portion and returned to the CMOS sensor. Since it is not incident, the fine structure of the object under test provides a clear and clear picture quality that can be easily identified.

On the other hand, Figure 7 is a perspective view showing a pedestal for supporting a multi-function digital camera according to the present invention.

The center of the pedestal 400 is provided with a mounting portion 410 spaced apart from the bottom by a predetermined distance. The light guide part 300 of the multifunction digital camera is inserted into the mounting part 410 so as to face the bottom, and the light guide part 300 is fixed to be spaced apart from the bottom surface to be used as a microscope.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and the general knowledge in the technical field to which the present invention pertains does not fall within the spirit of the present invention. Various alternative changes and modifications will be possible by the possessor.

Claims (10)

An external body having a suitable size to be gripped by a user's hand is provided, and a handle part equipped with a main board on which an image memory and a text switch are installed and a CCD or CMOS sensor are mounted inside the outer body, and an outer end of the handle part. In the digital camera comprising a lens control unit coupled to the lens for moving the front and rear of the lens group, a light emitting diode for emitting light at the tip of the lens control unit and a light guide portion with a cap for protecting the light emitting diode, In front of the light emitting diode is provided with a diffuser plate for uniformly diffusing the light emitted from the light emitting diode to the front surface to provide a light of uniform brightness to the object under test, and reflected light reflected from the object under test to the rear end of the lens group Multi-function digital camera, characterized in that the diffuse reflection means for scattering the light reflected from the CMOS sensor is converted into a conventional video signal provided with a first space portion so that the image quality of the image converted into an electrical video signal is clean and clear. The method of claim 1, The lens adjusting unit has an inner cylinder provided with guide grooves in the longitudinal direction on both sides thereof, an outer cylinder provided with a spiral groove rotatably coupled to an outer side of the inner cylinder and communicating with a guide groove of the inner cylinder on an outer circumferential surface thereof, and an outer side of the outer cylinder. A case for covering, an adjustment part projecting outward from the case at one end of the outer cylinder so as to rotate the outer cylinder on the outer circumferential surface of the case, and a lens group inserted into the inner cylinder and provided with protrusion bars on both sides of the outer circumferential surface Wherein, the lens group is inserted through the guide groove of the inner cylinder and inserted into the spiral groove of the outer cylinder to rotate the outer cylinder by adjusting the control unit to rotate the outer groove of the outer cylinder while pressing the dolbong rod of the lens group forward and backward In addition, because the direction of movement is limited by the guide groove formed in the inner cylinder is to move the lens group only in the front and rear direction Multi-functional digital camera according to claim. The method of claim 2, And a second space portion at the rear end of the inner cylinder, the second space portion having diffuse reflection means for scattering the light reflected from the CMOS sensor which converts the reflected light reflected from the inspected object into an electrical image signal. The method of claim 3, wherein And a third space portion in the inner cylinder, the third space portion having diffuse reflection means for allowing the lens group to move and scattering light reflected from the CMOS sensor. The method of claim 4, wherein The diffuse reflection means may irregularize the surfaces of the first, second and third space portions by scratches or diffuse reflection coatings formed on the inner circumferential surfaces of the first, second and third space portions to prevent the reflection of light reflected from the CMOS sensor again. Multifunctional digital camera characterized in that. The method of claim 2, The inner cylinder has a guide groove for guiding the lens rods in the longitudinal direction to both sides, and has an installation groove in which a power line for supplying power to the light emitting diode is installed on one side of the outer circumference thereof, and is coupled to the outer end of the handle portion at the rear end. And a second space portion configured to scatter light reflected from the CMOS sensor inside the flange portion. The method of claim 2, The outer cylinder is provided with a spiral groove through which the protrusion of the lens group penetrates on the outer circumferential surface and has a control unit for rotating the outer cylinder at one end is rotatably coupled to the outside of the inner cylinder. The method of claim 2, The lens group includes a cylindrical lens body for fixing one or more lenses, a plurality of spacers formed on an inner circumferential surface of the lens body to maintain the plurality of lenses at a predetermined distance, and protruding to both sides on an outer circumferential surface of the lens body. The multi-functional digital camera, characterized in that the two dolbong formed and the first space portion for scattering the light reflected from the CMOS sensor at the rear end of the inner peripheral surface of the lens body. The method of claim 1, The light emitting diode of the light guide portion is radially installed on a light emitting diode substrate having a through groove which is coupled to the case front end of the lens adjusting portion and the reflected light is reflected from the object under test, and the diffusion plate is coupled to the light emitting diode substrate. The rod is provided in the front of the light emitting diode, the multi-function digital camera, characterized in that the center is provided with an inlet hole for the reflected light reflected from the inspection object. The method of claim 9, The digital camera has a multi-function digital camera, characterized in that the light guide portion further comprises a support for supporting a predetermined distance from the bottom surface to be used as a microscope.