Headlamp-loupe system that provides wearing comfort and optimal field of view

Abstract

The present invention relates to a headlamp-loupe system which is worn on the head by doctors during surgery or by workers who perform precise work to illuminate a work area and enlarge and view the work area, wherein the optical axes of loupe eyepieces can be aligned with the wearer's lines of sight by simple manipulation regardless of head shape, and the distance between the loupe eyepieces and the wearer's eyes can be appropriately adjusted. The headlamp-loupe system provides wearing comfort and an optimal field of view regardless of the wearer's head shape.

Description

Headlamp proof system that provides comfortable fit and optimal field of vision

[0001] The present invention relates to a headlamp proof system that is worn on the head by doctors during surgery or by workers during precise work to illuminate the work area and also to magnify the work area.

[0002] For example, when doctors perform surgery, they first need lighting to illuminate the surgical area. Second, whether the surgeon has poor eyesight or is able to perform microsurgery, they need a system to magnify their field of vision. This also applies to workers performing microscopic procedures. A headlamp proof system is a device worn by the operator on the head. It serves these two purposes: illuminating the work area and magnifying the workspace, thereby improving the operator's resolution.

[0003] In order to achieve a comfortable fit and optimal field of vision in a headlamp proof system used for the purposes mentioned above, first, the headband worn on the head must fit the head well, second, the distance between the loupe's eyepiece and the worker's eyes must be appropriate, and third, the optical axis of the loupe's eyepiece must be aligned with the worker's eye line of sight. The present invention relates to a headlamp proof system that achieves these purposes. Conventionally, a loupe is mounted on a glasses-type frame and a device is used to attach a light source to the glasses-type frame. However, this type of system has the inconvenience of excessively concentrating the load on the nose pad of the glasses. To solve this problem, there was a product that adopted a structure in which the battery supplying electricity to the light source was placed at a distance from the light source - for example, in a type worn on the waist - and the light source and the battery were connected by a wire. However, this method had the inconvenience of having to wear the glasses-type loupe and then attach the battery again. So there was also a headlamp-loupe system, which had a headlamp with a light source attached to a headband that wrapped around the head. However, because everyone's head shape is different - some people have a flat forehead, some have a vertical forehead, some have a long distance from eye level to the crown of the head, some have a short distance, some have their eyes set back in relation to their forehead, and some have their eyes set forward in relation to their forehead - it was very difficult to keep the headband securely on the head while positioning the loupe in the optimal position in front of the wearer's eyes.

[0004] In order to create a headlamp proof system that solves these problems, the present invention firstly combines a front band and a front auxiliary band so that the front auxiliary band can move up and down and forward and backward while also being angle-adjustable, secondly, a light source is hinge-coupled to the headband so that it can rotate to a certain extent on the wearer's sagittal plane, thirdly, a pair of left and right arms extending rearward from the light source are made, and multiple loupe mounting points are made on the pair of arms, and fourthly, a loupe that is inserted and mounted on the pair of arms is made and connected to the loupe mounting points.

[0005] These headlamp loupe systems are comfortable to wear, allow the optical axis of the loupe eyepiece to be aligned with the eye, and allow the distance between the eyepiece and the eye to be adjusted, providing the wearer with the best field of vision.

[0006] Figure 1 is a perspective view showing a headlamp proof system according to the present invention worn on the head.

[0007] Figure 2 is a side view from the left showing the headlamp proof system proposed in the present invention worn on two heads with different head shapes.

[0008] FIG. 3 is an enlarged side view of a portion of the front band seen from the left side with a portion cut off to show how the front band and the front auxiliary band are combined in the headlamp proof system proposed in the present invention.

[0009] FIG. 4 is a partial perspective view showing only the light source and loupe portions of the headlamp proof system proposed in the present invention, enlarged and showing the headlamp and loupe separated.

[0010] FIG. 5 is a perspective view showing only the light source and loupe portions of the headlamp proof system proposed in the present invention, enlarged from the rear side, showing the state before the lever is mounted on the loupe frame.

[0011] Fig. 6 is a perspective view showing only the light source and loupe portions of the headlamp proof system proposed in the present invention, enlarged from the rear side, showing the lever mounted on the loupe frame.

[0012] FIG. 7 is a perspective view showing only the light source and the loupe portion of the headlamp proof system proposed in the present invention, enlarged from the rear side, showing a lever insertion portion of a lever mounted on a loupe frame being inserted between a pair of arms extending from the light source.

[0013] Hereinafter, an embodiment of the present invention will be described in detail through drawings. Fig. 1 is a perspective view showing a headlamp proof loupe system proposed in the present invention when worn on the head. This embodiment is composed of a light source (2), a headband (3, 4, 5, 6), and a loupe (7) mounted on the light source. The headband is a 'C' shaped headband when viewed as a whole, extending from the forehead through the crown to the back of the head, and is composed of a front band (3), a front auxiliary band (4), a rear band (5), and a band size adjustment device (6). The light source (2) generates light and shines it downward to illuminate a work area at a certain distance from which the objective lens of the loupe (7) is directed. The light source (2) is hinged to the front band (3) on the opposite side from which the light is emitted, so that the direction of the light generated from the light source (2) can be changed up and down on the sagittal plane of the wearer. The front band (3) is a long and thin member in the shape of the letter 'S' overall, hingedly connected to the light source (2) from the front downward, and has a square hole in the middle that receives the connecting portion (42) of the front auxiliary band (4) extending from the rear to the front, and a vertical hole (33) that is long and narrow in the vertical direction penetrating the square hole left and right so that a fixing screw (44) can pass through, and is connected to the rear band (5) from the rear upward so that the length can be adjusted. The rear band (5) is a structure that supports the back of the wearer's head, is connected to the front band (3) from the front so that the length can be adjusted, and has a battery compartment (51) that receives a battery at the rear. The front auxiliary band (4) has a connecting portion (42) that protrudes forward and downward in the middle, and has wing portions (41) that extend left and right from the connecting portion and come into contact with the wearer's forehead at the rear.

[0014] FIG. 2 is a side view from the left showing the headlamp proof system proposed in the present invention worn on two heads with different head shapes, that is, on a large head (11) in the left figure and on a small head (12) in the right figure. The shape of each person's head is different. In FIG. 2, the height of the eyes (13) of the large head (11) and the eyes (14) of the small head (12) are depicted as being the same. The difference in the length from the forehead to the back of the head is resolved by the band size adjustment device (6) mentioned in FIG. 1. Adjusting this length is not difficult, but since it is not the subject of the present invention, a detailed description thereof will be omitted. The differences in the shapes of the large head (11) and the small head (12) that are related to the present invention are as follows. First, the horizontal distance from the eyes (13) of the large head (11) to the point (P) where the central lower part of the front auxiliary band wing (41) and the front part of the forehead (15) of the large head (11) meet is 20.08 mm. The horizontal distance from the eye (14) of the small head (12) to the point (Q) where the lower center of the front auxiliary band wing (41) and the front part of the forehead (16) of the small head meet is 24.08 mm. That is, in the case of the large head (11), the eye (13) protrudes 4 mm further forward compared to the lower center of the forehead (15) in comparison to the small head (12). Second, in the case of the large head (11), the vertical distance from the eye (13) to the point (P), that is, the point (P) where the lower center of the front auxiliary band wing (41) and the front part of the forehead (15) meet is d2 longer than the vertical distance from the eye (14) of the small head (12) to the point (Q), that is, the point where the lower center of the front auxiliary band wing (41) and the front part of the forehead (16) meet. Third, the angle of inclination of the forehead (15) of the big head (11) is closer to vertical than the angle of inclination of the forehead (16) of the small head (12). Fourth, the vertical distance from the eyes (13) of the big head (11) to the crown (R) is d1 farther than from the eyes (14) of the small head (12) to the crown (S).When the headband is worn on the two types of heads as described above, it comes into contact with the head at the following three points, i.e., in the case of a large head (11), it comes into contact with the head at the three points of the front lower center point (P) of the forehead (15), the crown (R), and the back of the head (T), and in the case of a small head (12), it comes into contact with the three points of the front lower center point (Q) of the forehead (16), the crown (S), and the back of the head (U). Hereinafter, how the headlamp proof loupe system proposed by the present invention is positioned on the head and optimizes the loupe field of view on heads with such different shapes will be described. The 'C'-shaped headband proposed in this embodiment can rotate clockwise or counterclockwise around the center (O1, O2) of the circle formed by the three points while coming into contact with the three points (P, R, T) in the case of a large head (11) and also with the three points (Q, S, U) in the case of a small head (12), regardless of the head shape. This rotation allows the light source (2), the loupe (7), and the front auxiliary band (4) to move up and down. That is, when the headband rotates clockwise, the light source (2), the loupe (7), and the front auxiliary band (4) rise, and when the headband rotates counterclockwise, the light source, the loupe, and the front auxiliary band descend. More specifically, in the left figure, that is, in the case of the big head (11), the angle between the line segment connecting the center of rotation (O1) to point P and the line segment extending horizontally from point P is 8.64 degrees, and in the right figure, that is, in the case of the small head (12), the angle between the line segment connecting the center of rotation (O2) to point Q and the line segment extending horizontally from point Q is 11.21 degrees. In other words, the headband worn on the big head (11) is rotated 2.57 degrees more counterclockwise than the headband worn on the small head (12). When the rotation is made 2.57 degrees like this, the light source (2) and the loupe (7) move downward by the distance obtained by multiplying the radian value of 2.57 degrees by the distance from the center of rotation (O1) to the radius of rotation.Through this, even though the height from the eyes (13) of the big head (11) to the crown (R) is high, the headband can be rotated to move the loupe (7) eyepiece to near the height of the eyes (13). At the same time, the light source (2) and the loupe (7) are rotated counterclockwise by the above 2.57 degrees, and this angular change also changes the angle of the optical axis of the loupe (7) eyepiece. To compensate for this, it is helpful that the light source (2) and the front band (3) are hinged together. More specifically, when the light source (2) is rotated clockwise by the angle at which the headband is rotated around the hinge axis (31) with respect to the front band (3), i.e., by 2.57 degrees, the angle of the optical axis of the loupe (7) eyepiece does not change. Of course, at this time, the height of the eyepiece of the loupe (7) may be slightly lowered by the light source (2) rotating about the hinge axis (31), but this height change is much smaller than the height change caused by the rotation of the headband and can be ignored. Even if it cannot be ignored, the problem can be solved by rotating the headband less enough to compensate for it. In other words, although there are numerous variables in the shape of the head, if the light source can rotate independently of the headband, it is possible to align the optical axis of the loupe eyepiece mounted on the light source with the wearer's line of sight.

[0015] FIG. 3 is a partially enlarged view of the headlamp proof system proposed in the present invention, showing the embodiment worn on a large head (11) in detail to illustrate the method of combining the front band and the front auxiliary band. In addition, FIG. 3 illustrates the state in which the left side of the square hole (32) of the front band (3) is removed to clearly illustrate the state in which the front band (3) and the front auxiliary band (4) are combined. The removed cross-section (34) is indicated by gray hatching. Hereinafter, the combination of the front auxiliary band (4) and the front band (3) will be described in detail. In the middle of the front band (3), a square hole (32) is formed from the rear to the front to accommodate the front auxiliary band (4) combination portion (42), and vertical holes (33) are formed in the left and right sides of the square hole, extending vertically in the left and right directions. The front auxiliary band (4) has a connecting portion (42) protruding downward in the center, and a horizontal hole (43) having a long horizontal shape is bored left and right in the connecting portion. The width of the square hole (32) from left to right is slightly larger than the width of the connecting portion (42) of the front auxiliary band (4), so that the connecting portion (42) can be inserted into the square hole with some space. The fixing screw (44) is composed of a bolt and a nut, and the bolt passes through the vertical hole (33) and penetrates the left and right side walls of the square hole (32) to be fastened. Of course, at this time, the bolt also passes through the horizontal hole (43) of the front auxiliary band (3). When the fixing screw (44) is inserted and tightened with the connecting portion (42) inserted into the square hole (32), the left and right side walls of the square hole (32) are compressed, so that the front band (3) and the front auxiliary band (4) are firmly connected. When the fixing screw (44) is slightly loosened, the front auxiliary band (4) can move up and down within the range permitted by the vertical hole (33) within the square hole (32), and can move forward and backward within the range permitted by the horizontal hole (43). In addition, it can rotate around the fixing screw (44) within the range permitted by the upper and lower parts of the entrance of the square hole (32). This front auxiliary band (4) can achieve the following three purposes.First, the forward and backward movement of the front auxiliary band (4) changes the distance between the eye (13) and the loupe (7) eyepiece. Second, the front auxiliary band can be vertically moved to some extent to fit the vertical distance from the front center lower end (P) of the forehead (15) to the crown of the head, or from the front center lower end (P) of the forehead (15) to the eye. Third, the front auxiliary band (4) is stably supported by contacting the lower end (P) of the forehead (15), and at the same time, the rear of the wing part (41) of the front auxiliary band (4) is closely fitted to the slope of the forehead (15), providing comfort to the wearer. However, in reality, it is not easy to perfectly fit the distance between the eye (13) and the loupe (7) eyepiece only by the forward and backward movement of the front auxiliary band (4). In other words, the horizontal distance from the lower end of the forehead to the eye varies greatly from person to person. In order to fit the headband to all of these head shapes, the length of the horizontal hole (43) of the front auxiliary band (4) must be very long. This causes an increase in the depth of the square hole (32) of the front band (3), an increase in the volume of the front band (3), and an increase in the overall size of the headband. To solve this problem, it is better to determine the length of the horizontal hole (43) of the front auxiliary band (4) at an appropriate level by considering only the relationship with the forehead, and to additionally apply a means for changing the position of the loupe mounted on the light source.

[0016] Hereinafter, a method of mounting a loupe on a light source will be described in detail with reference to FIG. 4. FIG. 4 is a partial perspective view of an embodiment of the present invention in which the headlamp light source (2) and the loupe are separated. As described above, the light source (2) has a pair of left and right arms (21) protruding rearward at the bottom, and four catches (23) protrude outward at regular intervals on the outer surfaces of each pair of arms. When the loupe is mounted on the arm (21) of the headlamp light source, the catches (23) are positioned between the loupe frame (71) and the next catches (24). At this time, the catches (23) serve to prevent the loupe from easily moving forward and backward. Among the above-mentioned catches (23), the rear part of the second, third, and fourth catches is formed as a catch slope (25), and this catch slope (25) is inclined at an angle of about 45 degrees with respect to the protrusion direction of the catches (23), so that when the arm (21) is inserted into the loupe (7), it comes into contact with the hole slope (76) of the loupe and easily slides. The loupe is composed of left and right magnifying glasses (73, 72), a loupe frame (71) that supports the left and right magnifying glasses, and a fixing lever (8). In order to better explain the relationship between the arm (21) and the insertion hole (74), Fig. 4 is illustrated with the front part of the right magnifying glass (72) removed. The loupe frame (71) has an insertion hole (74) drilled in the front-back direction in the center, and a pair of left and right arms (21) extending from the light source (2) are inserted into this insertion hole. The insertion hole (74) is narrow at the top and wide at the bottom, and the frontmost part of the insertion hole is connected to the front surface (77). The upper part (narrow hole) of the insertion hole (74) is composed of a hole slope (76) extending from the front surface (77) to the left and right, left and right contact surfaces (75) extending from the hole slope, and an upper surface (not visible in the drawing) upward. At this time, the width in the left and right direction of the upper part (narrow hole) of the insertion hole (74) is approximately the same as the distance between the left and right hook-up surfaces (24) of the left and right arms (21) extending from the light source.In this embodiment, a case where there are four catches (23) is given as an example, but there does not necessarily have to be four. Five or more may be sufficient. In the case of four, the position of the loupe can be adjusted in three stages. To mount the loupe on the headlamp, first, press the left and right pairs of arms (21) from the left and right sides to narrow the space between the left and right pairs of arms (21), and then insert it into the upper portion of the loupe (2) insertion hole (74) to fit. At this time, when the loupe is pushed forward, the hole slope (75) and the catch slope (25) contact each other and slide to advance to the next catches (23) and settle. In another way, when the arm (21) extended from the light source (2) is inserted into the lower wide side of the insertion hole (74) of the loupe and the arm (21) is moved upward, the surface (24) between the catches of the arm (21) and the contact surface (75) of the loupe are in contact, and the loupe is mounted on the arm (21) of the headlamp light source. When removing the loupe, hold the rear end of the arm (21) and press from the left and right to narrow the distance between the arms, and then pull the loupe backward to detach it. In order for the loupe to be stably mounted on the headlamp, it is recommended to make a lever hanger (79) on the loupe frame (71) and additionally attach a lever (8) to the lever hanger to secure the loupe.

[0017] Fig. 5 is a perspective view showing only the light source and the loupe portion of the headlamp proof loupe system proposed in the present invention, viewed from the rear side, before the lever (8) is mounted on the loupe frame. The lever (8) has an overall 'ㅅ'-shaped cross-section extending to the left and right, and is composed of a handle (81), a pair of left and right supports (82), an insertion portion (83), and a shaft (84) in the shape of a wind column. The shaft is structured to connect the ends of the left and right supports, so that there is a space between the shaft (84) and the insertion portion (83), into which the lever hanger (79) is inserted. A lever hanger (79) protrudes rearward from the upper center rear of the loupe frame (71), and the lever hanger has a lever hanger semi-cylinder (791) that protrudes rearward from the loupe frame (71) and is bent about 180 degrees counterclockwise, and the free end of the lever hanger semi-cylinder is split in the middle, and a left lever hanger hook (793) protrudes leftward from here, and a right lever hanger hook (792) protrudes rightward from here. The shape in which the left and right lever hanger hooks (793, 792) protrude is such that the front part does not actually protrude, but the amount of protrusion increases toward the rear, so that the overall shape is an arrow shape. Specifically, the width of the front of the free end of the lever hanger (79) is not longer than the shaft length of the lever, and becomes wider as it goes to the rear, so that the width of the widest part where the left and right lever hanger hooks (793, 792) end is longer than the shaft length of the lever.

[0018] Fig. 6 is a perspective view showing only the light source and the loupe portion of the headlamp proof system proposed in the present invention, viewed from the rear side, showing the lever mounted on the lever hanger (79). Hereinafter, the process of mounting the lever will be described in detail with reference to Figs. 5 and 6. The lever (8) has an empty space between the shaft (84) and the insertion portion (83), and the lever hanger hooks (792, 793) are inserted into this space. The length of the shaft (84) is the same as the width of the left and right sides of the lever hanger semi-cylinder (791). In this situation, when the left and right lever hooks (793, 792) of the lever hanger (79) are pushed into the space between the shaft (84) of the lever and the insertion part (83), the left lever hook (793) and the right lever hook (792) are pressed by the support (82), so that the gap between the left lever hook (793) and the right lever hook (792) is narrowed, and the total length from the left end of the left lever hook (793) to the right end of the right lever hook (792) becomes shorter than the length of the shaft (84), so that the lever (8) is mounted on the lever hanger (79). At this time, the shaft (84) of the lever is coupled to have a concentric axis with the lever hanger semi-cylinder (791). Once combined in this way, the left lever hook (793) and the right lever hook (792) return to their original positions due to the restoring force, so that the lever (8) does not come off the lever hook (79) and is combined so that only rotational movement is possible around the central axis of the lever hook semi-cylinder (791).

[0019] FIG. 7 is a perspective view showing only the light source and the loupe portion of the headlamp proof loupe system proposed in the present invention, viewed from the rear side, showing a state in which the insertion portion (84) of the lever (8) mounted on the loupe frame (71) is inserted between a pair of arms (21) extending from the light source. When the lever mounted in the state of FIG. 6 is turned clockwise around its axis, the insertion portion (83) also rotates and is inserted into the inner side of the left and right arms (21) protruding rearward from the light source (2). At this time, the shape of the insertion portion (83) is such that the left and right corners (831, 832) are rounded as shown in the drawing, or the corners are chamfered so that the insertion portion (83) is smoothly inserted into the inner side of the left and right arms (21). When the insertion part (83) is inserted into the inside of the left and right arms (21) in this way, the left and right arms (21) cannot move inward even when force is applied from the left and right outer directions, so the loupe frame is firmly fixed between the left and right arms (21).

[0020] Hereinafter, the mechanism for changing the distance between the loupe fitted in this way and the wearer's eyes will be described. First, the handle (81) of the lever (8) is turned counterclockwise around its axis so that the insertion part (83) is completely removed from the left and right arms (21), and the loupe (7) is pushed forward. At this time, the hole slope (76) of the loupe frame (71) and the jaw slope (25) of the light source arm (21) contact each other and slide, compressing the light source arm (21) inward to narrow the gap between the left and right light source arms (21). As a result, when the distance from the left end of the left catch (23) of the left and right light source arms (21) to the rightmost end of the right catch (not numbered) becomes smaller than the width of the insertion hole (74), the loupe frame (71) moves forward one step beyond the catch (23) and is mounted. When moving the loupe backward, press the left and right arms (21) from the left and right to narrow the gap between the left and right arms (21) and move the loupe backward. Once a suitable position is found, turn the handle of the lever (8) clockwise to insert the insertion part (83) between the left and right arms (21) and fix the loupe.

[0021] This headlamp proof system can be worn stably and comfortably regardless of the shape of the wearer's head, and can adjust the distance between the eyes and the loupe's eyepiece to the optimal distance, as well as align the optical axis of the loupe's eyepiece with the line of sight. The loupe shown in the drawing of this embodiment is a refractive loupe in which the optical axis of the eyepiece and the optical axis of the objective lens do not align but form a 48-degree angle, allowing the wearer to look down without having to bend their head. However, the present invention is not necessarily limited to a headlamp proof system equipped with such a refractive loupe. In other words, the present invention can be equally applied to a headlamp proof system equipped with a linear loupe in which the optical axis of the loupe's objective lens and the optical axis of the eyepiece align. Of course, the point where the light source shines should be an appropriate distance toward the loupe objective lens, i.e., it should illuminate the work area. This headlamp proof system can be comfortably worn on the head with a single wear, and provides the wearer with an optimal field of view.

Claims

1. In a headlamp-proof loupe system, a headlamp worn on the head to illuminate a work area and a loupe that magnifies and displays the work area are combined; A light source is provided which is supplied with electricity and illuminates a work area at a predetermined distance in front of the objective lens of the loupe; A front band is hingedly connected with the light source and the hinge axis in the front and is connected with the rear band in a way that the size can be adjusted according to the distance from the forehead to the back of the head in the rear, and the front band has a square hole in the middle to accommodate the connection part of the front auxiliary band, and the front band has vertical holes having a vertical shape that is long in the left and right walls of the square hole; A front auxiliary band including a connecting portion that can be inserted into the square hole protrudes forward, a horizontal hole having a long shape in a horizontal direction is formed in the connecting portion, and a wing portion that extends left and right from the rear of the connecting portion and has a rear surface that contacts the forehead; A headlamp proof system comprising a bolt and a nut, the bolt including a fixing screw passing through the vertical hole and the horizontal hole.

2. In claim 1, the light source is a light source including an arm having a pair of arms extending backwards and at least two pairs of hooks protruding outward on the outer surfaces on the left and right sides of the pair of arms, and an inclined hook surface formed on the remaining hooks except for the frontmost hook; A headlamp proof loupe system characterized in that the loupe has left and right magnifying glasses, a loupe frame that supports the left and right magnifying glasses, an insertion hole in the center of the loupe frame into which the pair of arms can be inserted, and a loupe having a hole slope in front of the insertion hole.

3. A headlamp proof system characterized in that, in claim 2, there is a lever hanger at the upper center rear of the loupe frame, there is a lever rotatably mounted on the lever hanger, and the lever has a handle, an insertion portion, and an axis, and when the handle is held and the lever is rotated with the axis center line as the rotation axis, the insertion portion is sandwiched between a pair of left and right arms protruding from the light source.

4. In a headlamp-proof loupe system, a headlamp worn on the head to illuminate a work area and a loupe that magnifies and displays the work area are combined; A light source including an arm having a pair of arms extending behind the light source and at least two pairs of catches protruding outward on the outer surfaces on the left and right sides of the pair of arms, and an arm having a catch surface except for the frontmost catches among the catches; A headlamp proof loupe system characterized in that the loupe has left and right magnifying glasses, a loupe frame that supports the left and right magnifying glasses, an insertion hole in the center of the loupe frame into which the pair of arms can be inserted, and a loupe having a hole slope in front of the insertion hole.

5. A headlamp proof system according to claim 4, characterized in that there is a lever hanger at the upper center rear of the loupe frame, there is a lever rotatably mounted on the lever hanger, and the lever has a handle, an insertion portion, and an axis, and when the handle is held and the lever is rotated with the axis center line as the rotation axis, the insertion portion is fitted between a pair of left and right arms protruding from the light source.

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