KR19990041119U - Screen magnifier - Google Patents

Abstract

The present invention relates to a screen magnification device that can achieve the same effect as seeing a large screen by enlarging the small monitor screen with a magnification device.

The present invention is to form an enlarged groove drawing a concentric circle on a transparent plane to combine the enlargement device to obtain a magnifying effect on the monitor, the transverse cut-out hole 11 is formed in the transverse direction at both ends of the bottom side of the bottom of the monitor (M) A pedestal 10 supported by the part; A support frame 20 slidably inserted into the horizontal cutout hole 11 of the pedestal 10 and having a stop gear 21 formed at an end of which the outer end is bent upwardly; An angle adjusting unit 30 coupled to an end of the support frame to adjust an up and down angle; Length adjusting screw 43 is fastened to the upper portion and having a rotating shaft 44 at the lower end of the length adjusting portion 40 is coupled to the upper portion of the angle adjusting portion; A connecting frame 50 inserted into the through-hole 40 of the length adjusting part and plunged back and forth; The upper end of the connecting frame 50 was screwed with a fine angle adjustment screw 63 was composed of holders 60 for fixing the magnifying glass 70.

The screen magnification device of the present invention increases the magnification, and the screen is clear, and the magnification and angle of the magnifier can be freely adjusted, such as front, rear, left and right angle adjustment, front and rear gap adjustment, and fine angle adjustment. You can effectively adjust the magnification and installation angle of the magnifier according to the conditions or the surrounding environment.

Description

Screen magnifier

The present invention relates to a screen magnification device that can achieve the same effect as viewing a large screen by magnifying a small computer monitor screen with a magnifying glass.

As the use of computers becomes more common, everything is done through computers, so people are working longer in front of them. For this reason, people who work using a computer feel a lot of fatigue of the eye, which causes a lot of deterioration of actual vision.

To ameliorate these phenomena, most people prefer large screens.

However, large monitors are not only easy to replace because they are expensive and costly, and even if they are replaced, existing small monitors must be discarded even though they can still be used. There is this.

Therefore, a magnifier has been released that allows you to obtain a large screen like a large monitor without using a large screen.

Such a magnifying glass is attached to the monitor by a magnifying glass support device before and after. In the related art, a rectangular frame is formed on both sides of the magnifying glass, and only the upper and lower sides of the monitor are attached to the monitor.

Of course, there was already a support device to support the magnifying glass that enlarged the TV screen. Looking at the structure, the horizontal bar is installed on both sides of the collapsible base, which is supported by the front and rear of the lower part of the TV. It was bent upward to engage the holder at its end to fix the magnifying glass.

However, such a conventional magnifying glass and magnifying glass support device had the following disadvantages.

First, since the enlarged groove of the magnifying glass is formed only on one side, the enlargement efficiency is decreased, and the image quality is degraded by the concentric circles drawn by the enlarged groove on the screen as the enlarged groove is processed to compensate for the reduced magnification. there was.

Second, the magnifier support device for the computer is not only able to adjust the size of the magnifier according to the size of the monitor but also cannot adjust the distance from the screen, so each magnifier must be equipped according to the size of the monitor of the computer. There is a disadvantage that the magnification cannot be adjusted depending on the conditions.

Third, the magnifier support device for TVs, not for monitors, is capable of adjusting the height of the magnifier and the gap between the screen, but it is not possible to adjust the angle of up and down. In case of spaced apart from the monitor, the screen and magnifier cannot be matched.

The present invention has been devised to solve such a conventional closure, the purpose of which is to configure the enlarged groove of the magnifying glass on both sides to improve the image quality and magnification, and to freely adjust the distance between the magnifier from the monitor to enlarge the magnification. It is to provide a magnification device for expanding the screen that can be adjusted freely while also allowing easy adjustment.

1 is an exploded perspective view of a screen magnification device according to a first embodiment of the present invention;

2 is a combined perspective view of the screen magnification apparatus according to the first embodiment of the present invention;

3 is a cross-sectional view showing the structure of the angle adjusting unit and the horizontal length adjusting unit of the screen magnification apparatus according to the first embodiment of the present invention;

Figure 4 is a sectional view of the main part showing a state in which the connection frame and the holder is coupled according to the first embodiment of the present invention,

5 is a main sectional plan view showing a state in which the holder is coupled to the side of the magnifying glass according to the first embodiment of the present invention,

6 is a front view showing the structure of a magnifying glass according to the first embodiment of the present invention,

7 is a cross-sectional view showing an enlarged groove structure of the magnifying glass according to the first embodiment of the present invention,

8 is a state of use of the screen magnification device of the present invention,

9 is an exploded perspective view showing the structure of a screen magnification device according to a second embodiment of the present invention;

10 is an assembled perspective view of the screen magnification device of the second embodiment;

11 is a cross-sectional view showing the structure of the support fixture of FIG.

12 is an exploded perspective view showing the structure of a screen magnification device according to a third embodiment of the present invention;

Figure 13 is a rear perspective view of Figure 12,

14 is an enlarged perspective view of the main portion of the third embodiment.

*** Explanation of symbols for the main parts of the drawing ***

10-Base 11-Horizontal cutout 20-Support frame

21-Stop gear 30-Angle adjuster 31-Notch groove

32-Stopper 33-Screw hole 34-Angle adjusting screw

35-Shaft hole 36-Screw hole 37-Breakaway thread

40-Length adjustment part 41-Through hole 42-Screw hole

43-Length adjusting screw 44-Rotating shaft 45-Locking groove

50-Connecting frame 51-Screw hole 60-Holder

61-Magnifying glass insertion groove 62-Extension 63-Fine angle adjusting screw

64-Magnifying glass fixing screw 70-Magnifying glass 71-Frame

M-monitor

(Fig. 9, Fig. 10, Fig. 11)

80-Support 81a, 81b-Front and Rear Body 82-Opening

83-old 84-threaded rod 85-screw hole

86-Pressure plate 87-Fixing screw 88-Bracket

90-Telescopic Rod 91-Screw Holes 92-Joints

93-connecting rod 94-cylindrical coupling 95-holder

96-Magnifying Glass Screw

(Fig. 12, Fig. 13, Fig. 14)

100-Expansion pipe 101-Expansion pipe 102-Joint

103-Belt 104-Teeth 105-Fasteners

106-Shaft 107-Spiral hole 108-Stopper

109-Spring 110-Release Lever

Means of the present invention for achieving the above object,

In the screen magnifier to enlarge the screen of the computer monitor,

A pedestal which is formed through the horizontal cutouts in the transverse direction at both end portions thereof and is supported by the bottom of the monitor;

A support frame slidably inserted into the lateral cutout hole of the pedestal, the support frame having an outer end bent upward and a stop gear formed at an end thereof;

It is coupled to the stop gear by an angle adjusting screw fastened at the side by having a notch groove cut in the front and rear direction at the lower side and a stopper engaged with the stop gear at the inner top of the notch groove, and an axial hole is formed at the upper end in the axial direction. And an angle adjusting portion including a screw hole formed in the transverse direction so as to communicate with the shaft hole, and a separation preventing screw fastened to the screw hole;

The upper part has a through hole penetrated back and forth, and the upper part has a screw hole communicating with the through hole, and a length adjusting screw fastened to the screw hole, and a lower end having a rotating shaft inserted into the shaft hole. At the periphery of the length adjusting portion formed with a catching groove for the separation prevention screw;

A connecting frame inserted into the through hole and recessed back and forth, and having a front end bent upwardly;

The plate is folded into a "U" shape so as to have a magnifying glass insertion groove fitted to the side of the magnifying glass, and the upper part of the central part is extended and reversely bent downward, and then the extension piece is screwed to the upper end of the connecting frame with a fine angle adjusting screw. In addition, it is achieved by providing a screen magnification device consisting of holders provided with a magnifying glass fixing screw for fixing the magnifying glass on the side.

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

(First embodiment)

1 is an exploded perspective view of a screen magnifier according to a first embodiment of the present invention, and FIG. 2 is a combined perspective view of the screen magnifier according to a first embodiment of the present invention.

As shown in the present invention is a magnifier 70 and a square plate having a size capable of supporting the lower portion of the monitor (M) as a pedestal (10) through which the horizontal cutout holes (11) are formed in the transverse direction at both ends of the side and It is composed of a support device for supporting the magnifying glass 70 by connecting the magnifying glass 70 and the pedestal 10.

The support device is composed of a support frame 20, the angle adjusting portion 30, the length adjusting portion 40, the connecting frame 50 and the holder (60).

As shown in FIG. 2, the support frame 20 slides and inserts one end of the long plate into the lateral cutout hole 11 so that the support frame 20 can be squeezed out, the other end is bent upward and the stop gear 21 is integrally formed at the end thereof. Formed.

In addition, the angle adjuster 30 has a notch groove 31 cut in the front-rear direction as shown in FIG. 3, and the stopper 21 engaged with the stop gear 21 on the inner upper end of the notch groove 31. 32). The engagement state of the stop gear 21 and the stopper 32 is such that when the angle adjuster 30 is rotated by applying an appropriate force, the stopper 32 is enough to move over the teeth of the stop gear 21, thereby merely increasing the frictional force. to be. In addition, a screw hole 33 is formed in the side portion of the angle adjuster 30 in which the cutout groove 31 is formed. Therefore, the stop gear 21 is inserted into the notch groove 31 and the angle adjusting screw 34 is fastened to the side to fix the adjusting part. In addition, a shaft hole 35 is formed at the center of the upper end of the angle adjusting part 30, and a screw hole 36 is formed in a horizontal direction at the side portion at which the lower end of the shaft hole 35 is located, thereby preventing the separation screw 37. ) Is fastened.

In addition, the length adjusting portion 40 is assembled on the upper portion of the angle adjusting portion 30. The length adjusting part 40 has a through hole 40 penetrated back and forth in the upper portion, as shown in Figure 3, the screw hole 42 and the screw hole 42 in communication with the through hole 40 in the upper portion The length adjusting screw 43 to be fastened is assembled. In addition, the length adjusting portion 40 is formed with a rotating shaft 44 at the lower portion is inserted into the shaft hole 35 of the angle adjusting portion 30, the locking groove 45 is formed on the outer periphery of the lower end of the rotating shaft 44 It is formed so that the end portion of the separation prevention screw 37 fastened to the lower end of the shaft hole 35 is slidably engaged so as to be rotated but not to fall out at the top.

In addition, the connecting frame 50 is a circular rod having a long length as shown in FIGS. 1 and 3 so as to be protruded back and forth in the through hole 40 of the length adjusting part 40 and at the same time tightening the length adjusting screw 43. Fixed by action. The tip end of the connecting frame 50 is bent upward, and the end thereof is flat, so that the screw hole 51 is formed laterally.

In addition, the holder 60 has a magnifying glass insertion groove 61 so that the side portion of the magnifying glass 70 is fitted as shown in FIGS. The magnifying glass insertion groove 61 is formed by folding a plate in a “U” shape, and forms an extension piece 62 which is bent downward by extending its center upper end portion to form an upper end portion of the connecting frame 50. After interposed between the body and the extension piece 62 is screwed with a fine angle adjustment screw (63). At this time, the fine angle adjustment screw 63 is penetrated through the extension piece 62 and penetrates through the screw hole 51 and the holder 60 of the connecting frame 50.

In addition, as shown in FIGS. 6 and 7, the magnifying glass 70 has a plurality of enlarged grooves formed concentrically from the center to the outer direction, and the enlarged grooves are formed on both front and rear surfaces. The enlarged groove has a deeper angle of inclination toward the outside from the center to give an effect like a magnifying glass despite being flat. The rim 71 is made of a material having elasticity such as rubber.

Looking at the assembly state of the present invention has such a structure as follows.

First, the stop gear 21 of both side support frame 20 is inserted into the notch groove 31 of the angle control part 30, and then the angle adjustment screw 34 is fastened to the side part, and is coupled, and the upper shaft hole ( Insert the rotation shaft 44 of the length adjusting part 40 in the 35) and then fasten the separation prevention screw 37 to the screw hole 36 to fix it. At this time, the end of the separation prevention screw 37 is located in the engaging groove 45 formed in the end of the rotation shaft 44, the length adjusting portion 40 is rotatable but is not separated from the angle adjusting portion 30.

Insert the connecting frame 50 into the through-hole 40 of the length adjusting part 40 assembled as described above and tighten the upper length adjusting screw 43 to fix it. Then, the front end portion of the connecting frame 50 is interposed between the holder 60 body and the extension piece 62, and then the micro angle adjusting screw 63 is fastened to fix the holder 60.

Then, the magnifying glass inserting groove 61 of the holder 60 is inserted into both sides of the magnifying glass 70 and tightened by fixing with the magnifying glass fixing screw 64. At this time, the both side support frame 20 is assembled by mounting and adjusting from the pedestal 10 so as to have a distance equal to the size of the magnifying glass 70.

Once the assembly is done in this way, the distance between the magnifier 70 and the monitor M, and the inclination angle of the magnifier 70 are adjusted according to the individual's vision or physical condition, the size of the monitor (M) screen and the surrounding environment. do.

First, when adjusting the distance between the monitor (M) and the magnifying glass 70, loosen the horizontal length adjusting screw 43 of the length adjusting unit 40 and when the vision is bad or the screen is small and the magnification needs to be increased, the magnifying glass 70 is moved forward. Set the proper magnification by opening it apart from the monitor (M), and then tighten the horizontal length adjusting screw (43). If the magnification is not necessary, for example, the screen is relatively large or the vision is not bad. For example, move the magnifying glass 70 toward the monitor M to set an appropriate magnification, and then tighten the horizontal length adjusting screw 43 to fix it.

On the other hand, if the height of the person or the desk is low to adjust the front angle of the monitor (M) upward magnification 70 should also adjust the angle accordingly. In this case, if the angle of the monitor M and the angle of the magnifying glass 70 do not coincide, a part of the screen that is seen by the magnifying glass 70 may be distorted or difficult to see.

For this reason, the inclination angle should be kept parallel while keeping the distance from the monitor M constant.

Therefore, by loosening the angle adjusting screw 34 of the angle adjusting unit 30 and rotating the angle adjusting unit 30 to change the angle of the connecting frame 50, the angle of the magnifier 70 and the angle of the monitor M After adjusting to match, tighten the angle adjusting screw (34) again. At this time, since the stopper 32 in the cutout groove 31 is engaged with the stop gear 21, the position fixed once is not displaced unless a large force is applied.

However, there is a difference between the rotation radius of the monitor M and the rotation radius of the magnifier 70 so that the inclination angle of the magnifier 70 does not match the inclination angle of the monitor M, or the position of the magnification 70 is monitored. Sometimes it doesn't match the position of. In particular, this phenomenon occurs mainly when the angle change of the monitor M is large or when the distance between the magnifying glass 70 and the monitor M is far. At this time, by adjusting the angle of the holder 60 by loosening the fine adjustment screw, the inclination angle of the magnifier 70 and the monitor M can be matched, and the magnification fixing screw 64 of the holder 60 is loosened to enlarge the magnifier 70 ) Is moved up and down from the magnifying glass insertion groove 61 to match the position of the monitor (M) and the magnifying glass 70, and then tighten the magnifying glass fixing screw (64) to fix.

At this time, the frame 71 coated around the magnifying glass has elastic elasticity such as rubber, so when the screw 71 is coupled to tighten the screw, the frame 71 serves as a packing, and thus the magnifying glass 70 and the holder 60 are more firmly coupled. .

This adjustment is also an operation that is essentially performed when the keyboard 70 is difficult to operate by the magnifying glass 70 while the magnifying glass 70 is far from the monitor M and the bottom portion is close to the floor. When the expansion warning screw 64 is tightened, the extension piece 62 and the holder 60 are tightened more tightly by tightening the ends of the connection frame 50 interposed therebetween. Therefore, the adjusted angle is maintained continuously.

By this operation, the magnifier 70 is used by adjusting the magnification and the inclination angle according to its physical condition or surrounding environment conditions.

Second Embodiment

9 is an exploded perspective view showing the structure of the screen magnification device according to the second embodiment of the present invention, FIG. 10 is an assembled perspective view of the screen magnification device according to the second embodiment, and FIG. 11 is a cross-sectional view showing the structure of the support tool of FIG. to be. At this time, the same parts in the same drawings as in the structure of the first embodiment are assigned the same numbers.

As shown in the second embodiment of the present invention is a support 80 for adjusting the vertical angle while supporting the magnifying glass 70 on both upper surfaces of the pedestal 10 supported by the lower portion of the monitor (M) is installed The elastic rod 90 is stretched to the distal end of the support 80, the screw is coupled. In addition, the connecting rod 93 is connected to the distal end of the elastic rod 90 by having a joint 92 connected to be hinged up and down with a screw.

The support 80 is a hollow spherical body that is internally divided into two front and rear structure is firmly coupled to each other. The front body 81a has a circular opening in its front surface, and a threaded rod 84 coupled to the screw hole 91 formed at the rear side of the elastic rod 90 through this opening 82 protrudes. The sand bar 84 is connected to the sphere 83 embedded in the hollow portion and pivotally coupled to the support 80. In addition, the rear body 81b forms a screw hole 85 in communication with the inside at the rear side, and the fixing screw 87 is fastened thereto, and the inner surface pressurizes the pivoted sphere 83 while moving back and forth by the screw. And a pressing plate 86 is fixed. And a bracket (88) coupled to the pedestal 10 is formed below the support (80) is fixed to the pedestal 10 is installed with screws.

In addition, the connecting rod 93 is coupled to the holder 95 for connecting the magnifying glass 70. The holder 95 has a cylindrical coupling portion 94 fitted to the expansion and contraction rod 90, and a magnifying glass insertion groove into which the side of the magnifying glass is inserted by bending a plate in a “U” shape on one side thereof. Magnifying glass fixing screw 96 for fixing the magnifying glass 70 is provided.

Magnifying glass 70 coupled to the holder 95 has an enlarged groove on the front and rear surfaces and a rubber-like rim 71 is coated on the circumference thereof so that both sides are fitted to the holders 95 on both sides, and are coupled by the enlarged fixing screw 96. do.

Looking at the operating state of the magnifying glass 70 by this structure is as follows.

First, the monitor (M) is seated on the upper portion of the base 10, and then adjust the angle of the monitor (M) according to the physical conditions and the environmental conditions. And adjust the magnifying glass 70 to match the angle of the screen. At this time, by loosening the screw installed on the rear side of the support 80 to move the pivot rod 90 connected up and down position and adjust the appropriate angle and then tighten the screw again to fix. That is, the position of the screw rod 84 is fixed by pushing the pressure plate 86 forward by screwing, thereby bringing the ball 83 pivotally coupled to the front body 81a. If the angle between the monitor M and the magnifying glass 70 is not finely adjusted, the angle of the magnifying glass 70 may be finely adjusted using the joint portion 92 at the distal end of the stretchable rod 90. Match the angle

In addition, when adjusting the magnification, the expansion and contraction bar 90 is stretched back and forth to enable the operation of widening and narrowing the distance between the magnifying glass 70 and the monitor (M).

If the size of the monitor M is too small or the user's vision is low, the expansion and contraction bar 90 is extended to increase the magnification by increasing the distance between the magnifying glass 70 and the monitor M, and the size of the monitor M is increased. If it is not so small and the visual acuity is not low, so large magnification is unnecessary, the length of the stretchable rod 90 may be reduced to adjust the distance between the monitor M and the eye shield.

(Third Embodiment)

12 is an exploded perspective view showing the structure of a screen magnification device according to a third embodiment of the present invention, FIG. 13 is a rear perspective view of FIG. 12, and FIG. 14 is an enlarged perspective view of main parts of the third embodiment.

In the screen magnification apparatus according to the third embodiment, the magnifying glass 70 is installed on the monitor M through the expansion tube 100.

The expansion pipe 100 is a rectangular cylindrical shape that is stretched back and forth to combine the magnifying glass 70 in the inner diameter of the line.

The rear end portion of the expansion pipe 100 is firmly coupled to the expansion pipe 101 whose internal width is expanded, and the coupling portion 102 coupled to the monitor M is coupled to the rear side thereof.

In addition, the coupling portion has a structure in which the lower side central part is opened, and the fastening device is provided in the open part.

The fastening device includes a belt 103 having teeth 104 formed on one side as shown in FIG. 3, and a fastener 105 for maintaining the inserted state when the belt 103 is inserted. The fastener 105 has an insertion hole through which the belt 103 is inserted and passed through. The insertion hole 105 includes a shaft tube 106 rotatably installed laterally and having a spiral hole 107 formed on an outer circumference thereof, and the shaft tube 106. The stopper 108 installed on the central side of the head) and the spring 109 and the shaft tube 106 which allow the stopper 108 to rotate only in one direction, and the tip is inserted into the spiral groove of the shaft tube 106. It is composed of a release lever 110 and the like to rotate the stopper 108 to rotate in reverse by moving the shaft tube 106 while being moved by the pressing operation.

With this structure, when attaching the magnifying glass 70 to the monitor M, the coupling part 102 is covered around the monitor, and then the lower belt 103 is inserted into the insertion hole of the fastener 105. At this time, the stopper 108 can be rotated in the direction in which the belt 103 is inserted, but on the opposite side thereof, the stopper 108 is in contact with the inner surface of the fastener 105 so that it cannot be rotated any further, and is caused by the elastic force of the spring 109. The fastener 105 is rotated toward the inner side. Therefore, even when the tooth 104 of the belt 103 is in contact with the stopper 108 when the belt 103 is inserted, the tooth 104 is rotated in the insertion direction of the belt 103 so that insertion is possible. When the belt 103 is pulled to the rear side after being fully inserted, the stopper 108 is bitten by the teeth 104 of the belt 103 to prevent the belt 103 from being pulled out.

By this action, the expansion pipe 100 is firmly coupled to the monitor (M).

If the expansion pipe 100 needs to be disassembled, the stopper 110 is pushed by the release lever 110 to rotate the shaft pipe 106 to the end inserted into the spiral hole 107 so as to be bitten by the teeth 104 of the belt 103. The belt 103 may be separated from the fastener 105 by detaching the 108, and then the expansion and contraction tube 100 may be separated from the monitor M.

This structure does not need to separately adjust the angle because the magnifier is fixed to the monitor (M) because the angle of the monitor (M) and the magnifier 70 is the same. And when setting the magnification of the magnifying glass 70, the expansion-and-contraction tube 100 can be raised and it can be adjusted easily.

As described above, the screen magnification device of the present invention has an advantage that the screen magnification is high and the screen is clear, and the magnification and angle of the magnifier can be freely adjusted, such as front, rear, left and right angle adjustment, front and rear gap adjustment, and fine angle adjustment. There is an advantage that can effectively adjust the magnification and installation angle of the magnifying glass arbitrarily according to their body type and physical conditions or surrounding conditions. In addition, the magnifying glass of the present invention has a merit that it does not need to purchase a monitor because it plays a security role.

Claims (5)

In the screen magnifier to enlarge the screen of the computer monitor (M), A pedestal 10 which is formed in both sides of the front end in a transverse cut-out hole 11 in the transverse direction and supported by the bottom of the monitor M; A support frame 20 slidably inserted into the lateral cut-out hole 11 of the pedestal 10, the outer frame being bent upward and a stop gear 21 formed at an end thereof; With an angle adjusting screw 34 fastened at the side by having a notch groove 31 cut in the front and rear direction at the lower portion and a stopper 32 engaged with the stop gear 21 at the inner top of the notch groove 31. It is coupled to the stop gear 21, the shaft hole 35 is formed in the upper end in the axial direction, the screw hole 36 formed in the transverse direction so as to communicate with the shaft hole 35 and fastened to the screw hole 36 An angle adjusting unit 30 including an anti-separation screw 37 to be separated; The upper part is provided with a through hole 40 penetrated back and forth, and the upper part is provided with a screw hole 42 communicating with the through hole 40 and a length adjusting screw 43 fastened to the screw hole 42. A length adjusting part 40 having a rotation shaft 44 inserted into the yoke 35 and a locking groove 45 on which an anti-separation screw 37 is caught at an outer periphery of the lower end of the rotation shaft 44; A connection frame 50 inserted into the through hole 40 and retreating back and forth, and having a front end bent upward; The plate is folded into a "U" shape so as to have a magnifying glass insertion groove 61 fitted into the side of the magnifying glass 70, and the upper portion of the central portion thereof is extended and reversely bent downward so that the extension piece 62 is connected to the connecting frame 50. It is screwed with a fine angle adjustment screw (63) on the upper end of the screen, and a magnifier comprising a holder (60) having a magnification fixing screw (64) for fixing the magnifying glass (70) on the side. The apparatus of claim 1, wherein the magnifying glass (70) has a rim (71) made of an elastic material such as a rubber material on the circumference thereof, and an enlarged groove is formed in front and rear sides. In the screen magnifier to enlarge the screen of the computer monitor (M), A pedestal 10 supported by the lower portion of the monitor M; Supporters 80 installed on both sides of the pedestal 10 to adjust the vertical angle while supporting the magnifying glass; It has a structure that the length is stretched and the rear end is coupled to the support (80), the end of the elastic rod (90) having a joint portion 92 forcibly pivoted up and down by screwing the connecting rod (93); It has a cylindrical coupling portion (94) to be fitted to the expansion rod 90, the plate is bent in the "U" shape on one side thereof and provided with a magnifying glass insertion groove into which the side of the magnifying glass 70 is inserted A holder (95) having a magnification fixing screw (96); Screen comprising a magnifying glass 70 having an enlarged groove on the front and rear surfaces and a frame 71 such as rubber coated on both sides thereof, the both sides of which are fitted to the respective holders 95 on both sides, and are coupled by the enlarged fixing screw 96. Magnification Device. According to claim 1, wherein the support (80) bisects a spherical body that is hollow inside and forward and firmly coupled, the front body (81a) has a front opening in a circular shape and inserts the sphere (83) in the hollow portion At the same time, the threaded rod 84 formed in the sphere 83 is extended to the opening 82, and the rear body 81b fastens the fixing screw 87 to the rear side, and moves back and forth by screws on the inner side. And a pressure plate (86) for fixing the sphere (83), and a bracket (88) coupled to the pedestal (10) is formed under the support (80). In the screen magnifier to enlarge the screen of the computer monitor (M), A corrugated pipe 100 having a rectangular cylindrical shape that is stretched back and forth and coupled to an enlarged diameter 70 at a line inner diameter; Expansion pipe 101 is connected to the rear end of the corrugated pipe 100 and the inner width is expanded; Is connected to the rear end of the expansion pipe 101, the screen expansion device characterized in that consisting of the coupling portion 102 is provided with a fastening device coupled to the monitor (M).