Safety glasses to block dangerous electromagnetic radiation and prevent glare

Abstract

Safety goggles for shielding against dangerous electromagnetic radiation, comprising a pair of LCD lenses (100) for shielding harmful electromagnetic radiation; a lens frame (200) for wearing on the face of a user with LCD lenses (100) arranged on both sides of the frame (200); the frame (200) is provided with a rearward projecting edge to fit closely to the face; an optical sensor (210) for detecting the radiation, arranged between the LCD lenses (100); a headband (300) for wrapping around the user's ears, connected to both sides of the frame (200); a power supply unit (310) for mounting a battery and a regulator switch (320); a conductor for connecting the power supply unit (310) to the regulator switch (320) is provided in the bracket (300); characterized by the following features: the weight of the safety goggles is distributed between a front area with the LCD lenses (100) and a rear area with the battery and the controller switch (320), including a controller, so that the safety goggles are balanced in terms of weight when worn; one end of the bracket (300) is equipped with the power supply unit (310) for mounting the battery, the other end with the regulator switch (320); the frame (200) comprises a front frame (200a) and a rear frame (200b), between which the LCD lenses (100) and the optical sensor (210) are arranged; in the center of the front frame (200a) there is provided a sensor opening (220) through which the optical sensor (210) detects the radiation; one edge of the front frame (200a) is directed backwards; the rear frame (200b) is arranged and fixed to the inside of the edge of the front frame (200a), and the two sides of the lower portion of a nose support (400) are connected to the center of the rear frame (200b); an upper region of the nose support (400) is formed with an elastic segment (410) which projects forward and is curved towards an upper rear side; a multi-stepped shoulder (410a) is formed on the curved upper surface of the elastic element in a front-to-back direction; A shoulder (230) is formed in a central lower region of the rear frame (200b) so that the multi-step shoulder (410a) is engaged by the shoulder (230) to adjust an inclination of the nose support (400).

Description

Field of the InventionThe invention relates to safety glasses for blocking hazardous electromagnetic radiation and for preventing glare. This protects the human eye against dangerous electromagnetic radiation. The weight of the eyeglasses is ergonometrically balanced with lenses disposed in the front portion; and an adjuster and a battery are disposed in the rear portion of a temple to ensure the comfortable wearing of the eyeglasses. An outer casing made of soft material is designed to be in close contact with the user's face to provide ease of operation. An inner housing is formed of hard material manufactured by double injection molding. This allows the distance between an LCD lens and the eyes to be adjusted, and provides wearing comfort according to the shape of the face and the height of the nose.Prior ArtSafety glasses are generally used for blocking hazardous electromagnetic radiation and for preventing glare. The eyeglasses protect the user from hazardous electromagnetic radiation. It is used to protect the eyes from hazardous electromagnetic radiation generated during welding as well as medical laser operations. Such safety glasses are designed such that an LCD lens shields dangerous electromagnetic radiation when such is detected by an optical sensor. The LCD lens, which is normally transparent, is shaded to shield hazardous electromagnetic radiation when it is generated.However, in safety glasses for shielding hazardous electromagnetic radiation, a battery and a regulator are necessary to delay the opening operation, in addition to an optical sensor and an LCD lens. Accordingly, it is difficult to provide safety glasses of the shape of normal glasses. When safety glasses for blocking or shielding dangerous electromagnetic radiation are worn by the shape of normal glasses, the fixed nose rest cannot be adapted to the face shape and the nose height of the user, which is unpleasant. In addition, when the user wears glasses for vision correction, the safety glasses for blocking dangerous electromagnetic radiation must be worn while being located in front of the normal glasses. In this case, the safety glasses for blocking dangerous electromagnetic radiation have a certain distance from the face, wherein a distance between the safety glasses and the face occurs below and to the side of the safety glasses. The safety glasses therefore cannot reliably shield the hazardous electromagnetic radiation. KR 10-1285602 describes a lens and regulator and battery all located in front so that the center of mass is farther from the face. The weight of the product also requires a pressure band to ensure reliable contact so that the eyeglasses are held reliably on the user's head. The user may feel unpleasant when wearing the eyeglasses. If the eyeglasses are worn for a long period of time, fatigue may also occur due to the pressure applied.US 2009 / 0213282 A1 discloses safety glasses having the features summarized in the preamble of claim 1. DE 689 22 484 T2 discloses spectacles with a counterweight, for example a battery, at the end of the bows.The inventionThe object of the invention is to solve the above-mentioned problems. Ergonomic safety glasses are to be created in order to block or shield harmful electromagnetic radiation and to prevent glare. The eyeglasses should have the shape of ordinary (reading) eyeglasses and distribute the weight as much as possible to give the user the feeling of wearing ordinary eyeglasses.It is a further object of the present invention to provide safety glasses for blocking harmful electromagnetic radiation and preventing glare, which are intended to protect the eyes from very strong visible light generated in medical treatments.It is a further object of the present invention to provide safety glasses for blocking harmful electromagnetic radiations and preventing glare, which glasses are intended to be worn during welding.It is a further object of the invention to provide safety glasses which have an inner seating space and prevent the creation of gaps at the bottom and sides of the glasses when they are worn and placed in front of a pair of glasses for visual protection.It is a further object of the invention to provide safety glasses for blocking harmful electromagnetic radiation, with the possibility of adjusting the nasal support.It is a further object of the present invention to provide safety glasses for blocking dangerous electromagnetic radiation and preventing glare, provided with a side face protective frame comprising a soft outer casing for closely contacting the user's face and a hard inner casing for conveniently fastening and releasing, manufactured by double injection molding.This object is achieved by means of the features of claim 1.The control switch may be configured to control a remaining battery charge indicator lamp, a welding method, a cutting / grinding method, and a sensitivity for selecting and performing the welding or the cutting / grinding.The eyeglasses comprise a front frame and a rear frame, the LCD lenses are mounted between the front frame and the rear frame; an optical sensor is mounted between the front frame and the rear frame; a sensor opening is provided at a center of the front frame to allow the optical sensor to detect harmful electromagnetic radiation; an edge of the front frame projects rearward, and the rear frame is disposed in and fixed to the inside of the edge of the front frame; both sides of a lower portion of a nose post are connected to a center of the rear frame.The nose post may be provided with a segment; a guide protrusion may be formed on one side of each of the two ends protruding from the two sides of the elastic segment; the rear frame may be provided with a guide groove for guiding a movement of the guide protrusion connected thereto.The eyeglasses may have an auxiliary frame connected to the eyeglass frame and extending from the lower side and from the side of the projecting edge of the frame to cover the edge. The eyeglasses may further comprise a side face protective frame having an outer soft material housing for making close contact with the face of the user's face made by double injection molding. The power supply unit may comprise a battery in the form of a coin, and a hinged battery cover. The battery can be medical safety glasses, industrial safety glasses, sports glasses, sunglasses, fashion glasses.The invention is explained in more detail with reference to the drawings. The following is shown in detail therein: FIG. 1 shows a perspective view of safety glasses for blocking harmful electromagnetic radiation and for preventing glare. FIG. 2 is an exploded view of safety glasses. FIGS. 3 and 4 are exploded views of portions of safety glasses. FIG. 5 is a view of the power supply unit in an opened state. FIGS. 6 and 7 are views of a nasal support of safety glasses according to an embodiment of the invention. FIG. 8 illustrates the connection of an auxiliary frame to safety glasses according to the invention. FIG. 9 illustrates safety glasses applied to works such as welding and cutting / grinding according to another embodiment of the invention. FIG. 10 illustrates the connection of a transparent cover. FIG. 11 shows an enlarged detail of a controller switch of safety glasses according to an embodiment of the invention. Figs. 12 and 13 are exploded views of an embodiment of the invention.As shown in Figs. 1 to 13, the safety glasses for shielding dangerous electromagnetic radiation comprise a pair of LCD lenses and a frame 200 for the glasses adapted to be worn on the face, the LCD lenses being located on the left and right sides of the frame, respectively, and provided with a rearwardly projecting edge. During wear, tight contact with the face occurs. An optical sensor 210 for detecting hazardous electromagnetic radiation is provided, arranged between the LCD lenses, and a bracket 300 which encloses the ears in use and is connected to the frame on both sides thereof. One end of the bracket is provided with a power supply unit 310 for mounting a battery, and the other end of the bracket is provided with a regulator switch 320. A conductor is provided in the bracket to connect the power supply unit 310 to the regulator switch 320. The weight of the safety glasses is distributed on the front area with the LCD lenses 100 and the rear area with the battery and the regulator switch 320, including a regulator that balances the glasses in weight when worn.The LCD lenses 100 serve to shield harmful electromagnetic radiation directed to the eyes. A pair of left and right LCD lenses are provided. The LCD lenses 100 are transparent even when harmful electromagnetic radiation is not present. They are shaded to protect the user's eyes upon emission of harmful electromagnetic radiation. As shown in Figs. 2 and 3, the LCD lenses are connected to a circuit board. At this time, the LCD lenses 100 are controlled by the optical sensor 210 and the controller switch 320, which will be described later.The frame abuts the user's face in use, with the LCD lenses mounted on the left and right frame portions, respectively. The edges of the frame 200 extend rearward to closely conform to the face, and the harmful electromagnetic radiation detecting optical sensor 210 is mounted between the left and right LCD lenses 100. Frame 200 thus controls the operation of LCD lenses 100 by detecting harmful electromagnetic rays by means of optical sensor 210 at the front center of frame 200. The frame is closely adhered to the face to prevent harmful electromagnetic radiation from reaching the eyes via the lateral or lower portions of the frame 200.In the embodiment of FIGS. 2 and 3, the frame 200 includes a front part 200 a(front frame) and a rear part 200 b(rear frame). Front part 200a and rear part 200b allow mounting of the LCD lenses 100 between these two, and also mounting of the optical sensor 210 between the two. A sensor opening 220 is provided at the center of the front part 200a so that the optical sensor 210 can detect harmful electromagnetic radiation. The edge of the front part 200a projects rearward. The rear part 200b is accommodated inside the inner edge of the front part 200a and fixed thereto. The two sides of the lower part of the nasal support 400 are fixed to the center of the rear part 200b.The inclination of the nasal support is adjusted according to the insertion and removal of an elastic segment 410 of the nasal support 400 by the rear frame part 200b of the frame 200, which will be described later. At the lower center of the rear part 200b, a step 230 is provided to interrupt an interrupt step 410a so that the inclination is adjusted. Through-holes 400b are provided on both sides of the lower portion of the nose rest 400 to fix both sides. Through the through holes 400 b, fixing pins 400 aare inserted. The fixing pins are further inserted into and fixed to mounting holes 400 cof the rear frame part 200 b. Moreover, guide grooves 420a are provided for guiding projections 410b of the nose post 400 formed at the front part of both sides of the step 230 of the rear frame member 200b. The strap 300 is connected to the two sides of the frame 200 and wraps around the user's ears. The power supply unit 310 for mounting the battery is formed on one end of the bracket 300 as shown in FIG. 1, and the regulator switch 320 is provided on the other end of the bracket 300 as shown in FIG. 2, the bracket 300 has right and left parts connected to the frame.Referring to FIG. 5, a battery cover 330 is shown having a hinge for facilitating replacement of the battery. This is coin-shaped and connected to the power supply unit 310. The power supply unit 310 prevents the battery lid from being removed in the opened state. The regulator switch 320 turns on or off the LCD lenses 100, and the optical sensor 210 is operated by the power supply unit 310. If necessary, the power supply unit and the regulator switch on the left and right sides may be interchanged.The nose support 400 is connected to the center of the rear portion of the frame 200 and is seated on the nose in use. The two sides of the lower portion of the nasal support 400 are connected to the two sides of the frame 200. The nasal support 400 is tiltable with respect to the frame 200. When the edge of the frame 200 is in close contact with the user's face, the inclination of the nasal support is adjusted according to the height of the user's nose, so that the frame does not move downward for good wearing comfort.In the embodiment shown in FIGS. 3 and 4, the elastic segment 410 that protrudes forward and is curved toward the upper rear side is formed on the upper portion of the nasal support 400. To the upper curved surface of the elastic segment 410, a multistage interrupt shoulder 410a is formed in a front-rear direction. Shoulder 230 at the lower end of the central connecting portion of rear frame portion 200b is configured such that break shoulder 410a is received by shoulder 230. When the upper portion of the nose post 400 is moved forward and backward, thereby holding the elastic segment 410 pressed and then released, a groove is received in the interrupt shoulder 410a and held by the shoulder 230. In this way, the inclination of the nose rest 400 and the cushion cover 420 made of silicone or rubber can be easily adjusted, which provides the wearing comfort.As can be seen from FIGS. 3 and 4, guide projections 410 bare provided which can be inserted into guide grooves 240 of the rear frame part 200 b. Further, there are seen mounting protrusions 410 cfacing rearward and having an inverted L-shape. They are formed on both sides of the rear portion of the nasal support 400. Mounting holes 420a for receiving the mounting protrusions 410c in an interference fit are formed on both sides of the cover 420. In addition, a through hole 420 bis provided in the upper part of the cover 420 (Cushion cover), so that one end of the elastic segment 410 is inserted into the through hole 420 band exposed outside to be manually displaceable. The cover 420 can be easily and reliably fixed to the rear part of the nasal support 400, while the inclination of the nasal support 400 can be easily adjusted using the elastic segment 410. According to an embodiment, the safety glasses include an auxiliary frame 500 - see FIG. 8 - connected to the frame 200 and extending to the lower end and sides of the protruding edge of the frame 200 to cover the edge. When a user wears eyeglasses for vision correction, the sub frame 500 serves to cover the gap between the edge of the frame 200 and the face, which is formed by arranging a protrusion and a groove on the frame 200 and the sub frame 500, the frame 200 can be easily attached to and separated from the sub frame 500.When the subframe 500 is connected to the frame 200, the nose post 400 is unnecessary and can be removed and put aside. According to this embodiment, if the nose rest 400 is designed to conform to the shape of the eyeglasses and is adjustable, wearing of the eyeglasses is improved. Since the space formed between the safety glasses and the face is cut off due to the glasses for vision correction behind the safety glasses, the user can wear the safety glasses reliably and comfortably.A further embodiment is shown in FIGS. 9-13. The safety glasses can be used for works such as welding, cutting or grinding.The safety glasses according to this embodiment comprise a pair of LCD lenses 100 for shielding harmful electromagnetic radiation, a frame 200 for the glasses for wearing on the face, the LCD lenses 100 being arranged to the right and left thereof and provided with a rearwardly projecting edge for abutting closely against the face, and an optical sensor 210 for detecting harmful electromagnetic radiation arranged between the two LCD lenses, and a bracket 300 which wraps around the ears and is connected to the frame on both sides. One side of the bracket is provided with a power supply unit 310 for mounting a battery, and the other side of the bracket is provided with a regulator switch 320. The bracket has a conductor for connecting the power supply unit 310 to the regulator switch 320. The weight of the safety glasses is distributed to the front area with the LCD lenses 100 and the rear area with the battery and the regulator switch 320, including a regulator. The weight is thus balanced during the wearing.The battery is incorporated in the power supply unit 310, and the control switch 320 is provided with switches for selecting between welding, cutting or grinding operations. The power supply unit 310 may be installed on either side of the bracket 300. In this embodiment, a power supply unit 310 having a battery inserted therein is formed on the right side of the bracket to supply power, as shown in the figures. A lamp 280 is also provided for displaying the remaining battery charge to provide information therefrom.According to this embodiment, power is turned on when buttons are pressed. When the welding operation is concerned, a welding switch 260 - denoted W - is pressed and then a desired dimming level is selected - Level 9, Level 10 or Level 11 - When cutting or grinding is concerned, a cutting / grinding switch 250 - denoted C - is pressed and a desired dimming level of the LCD lenses is selected - Level 5 or Level 6 - Also, a sensitivity switch 270 - denoted SE - is provided to adjust a sensitivity of the response to the light intensity at the work site or for a designated work to control dimming of the LCD lenses. When using the sensitivity switch 270, a sensitivity level is selected between high (H), medium (M) and low (L), depending on the working environment.According to this embodiment, light (dangerous electromagnetic radiation) generated during welding is detected via an input signal from the optical sensor 210. Specifically, light generated during welding or cutting is detected by the optical sensor, and the sensitivity is adjusted by the sensitivity switch 270--denoted as SE--to control the dimming of the LCD lenses according to the response sensitivity.Dimming LCD lenses to protect the person performing welding or cutting and preventing glare is already prior art and therefore need not be described any more.According to this embodiment, a transparent cap 290 having a protrusion 220' and an extending protrusion 280 is formed on the side surface to facilitate mounting and dismounting of the cap 290. The cap 290 is mounted on the front of the LCD lenses 100 to shield harmful electromagnetic radiation and protect the lenses from damage.The transparent cap 290 is formed by stacking a single protective film or a plurality of protective films so that the films can be removed one by one. If a film is damaged, it can be immediately removed to perform the intended operation. In the embodiment shown in FIGS. 12 and 13, the frame 300 of the glasses includes a front frame 200 aand a rear frame 200 b.A plurality of mounting grooves 110 are provided at the center of the rear frame 200b, and mounting grooves 120 are provided at the left and right of the center of the rear frame 200b. Central mounting projections 110' are provided at the upper center and lateral mounting projections 120' are provided on both sides of the upper center. The mounting protrusions are inserted into the grooves. A surface 190 is provided to surround the lateral surface of the front frame 220a, as shown in FIG. 12, and a plurality of outlet bosses 130' and attachment holes 140' are formed on the lateral surface of the surface 190 to be connected to the outlet grooves 130 and the bosses 140 on the front frame. By applying a tension to the outlet projections 130', these are decoupled from the outlet grooves 130 and the fastening projections 140' by the fastening openings 140'.The inner case 160 having the outlet protrusions 130' and the hard material mounting holes 140' and the outer case 170 of soft material for achieving tight abutment with the user's face are formed by double injection molding (double injection molding) to achieve a side surface protecting frame 500-1. In the above configuration, the weight of the protective frame 500- 1 can be minimized, and the structure of the double injection molding can be applied by forming the member for closely abutting on the face of soft material and the member for coupling of hard material.When the gap between the eyes and the LCD lenses is shut off so as not to be open during welding or cutting or grinding, noxious gases and light are prevented from entering through the gap.The removal of the side surface protecting frame 500- 1 is facilitated by pulling out the protrusions. The coupling is effected by mounting the fastening projections in the mounting openings. According to this embodiment, the wing surface 190 surrounds portions of the lens frame except for the upper portion thereof. Side surface protective frame 500- 1 is manufactured by manufacturing inner hard material case and outer soft material case 170 to closely abut on the user's face by double injection molding. The side surface protecting frame is formed on the lens frame, and the weight thereof is reduced so as not to be concentrated on the front portion. The front area and the rear area are thus balanced by weight. From the foregoing, it will be understood that, according to an embodiment of the invention, safety glasses for shielding harmful electromagnetic radiation and preventing glare are in the form of normal glasses and thus can be conveniently used in medical treatments or welding or cutting / grinding.Since the nose rest is adjustable, the spectacles can be worn comfortably.The safety glasses for shielding harmful electromagnetic radiation are provided with an auxiliary frame according to an embodiment of the invention. This eliminates the gap between the face and the lenses which exists at the lower portion and sides of the lenses between a pair of lenses for vision correction and other safety lenses and the safety lenses. The safety glasses according to the invention can therefore be worn safely and pleasantly.

Claims

Safety glasses for shielding hazardous electromagnetic radiation, comprising a pair of LCD lenses (100) for shielding hazardous electromagnetic radiation; a lens frame (200) for wearing on a face of a user with LCD lenses (100) disposed on both sides of the frame (200); the frame (200) is provided with a rearward protruding edge to closely abut on the face; an optical sensor (210) for detecting the radiation disposed between the LCD lenses (100); a bracket (300) for surrounding ears of the user connected to both sides of the frame (200); a power supply unit (310) for mounting a battery; and a regulator switch (320); a conductor for connecting the power supply unit (310) to the regulator switch (320) is provided in the bracket (300); characterized bythe following features: the weight of the safety glasses is distributed to a front area with the LCD lenses (100) and a rear area with the battery and the controller switch (320), including a controller, so that the safety glasses are balanced with respect to the weight when worn; one end of the bracket (300) is equipped with the power supply unit (310) for mounting the battery, the other end with the controller switch (320); the frame (200) comprises a front frame (200a) and a rear frame (200b), between which the LCD lenses (100) and the optical sensor (210) are arranged; a sensor opening (220) is provided in the center of the front frame (200a), through which the optical sensor (210) detects the radiation; an edge of the front frame (200a) is directed rearward; the rear frame (200b) is disposed and fixed to the inside of the edge of the front frame (200a), and both sides of the lower portion of a nose post (400) are connected to the center of the rear frame (200b); an upper portion of the nose post (400) is formed with an elastic segment (410) protruding forward and curved toward an upper rear side; the curved upper surface of the elastic member is formed with a multistage step (410a) in a front-rear direction; a central lower portion of the rear frame (200b) is formed with a step (230) so that the multistage step (410a) is caught by the step (230) to adjust an inclination of the nose post (400).Safety glasses according to claim 1da, characterized in that the nose support (400) is connected to a center of a rear portion of the frame (200) for seating on the nose of the user, that both sides of a lower portion of the nose support (400) are connected to both sides of the frame (200), and that the inclination of the nose support (400) is adjusted by pulling or pushing an upper portion of the nose support (400) into or out of the frame (200).The safety glasses according to claim 1, characterized in that the power supply unit (310) is provided with the battery having a coin-shaped shape and having a hinged battery lid (330).Safety glasses according to claim 1, characterized in that an auxiliary frame (500) is provided, which is connected to the frame (200) and which extends from below and from the sides of the protruding edge of the frame (200), and that the auxiliary frame (500) is open at the top.Safety glasses according to claim 1, characterized bythe following features: 5.1 a rearwardly projecting mounting projection (410c) having the shape of an inverted L is formed on both sides of a rear region of the nasal support (400); 5.2 a mounting opening (420a) is provided into which the mounting projection (410c) can be inserted forming a press fit and fixed on both sides of a cover (420); 5.3 a through opening (420b) is provided in an upper region of the cover (420) into which an end of the elastic segment (410) can be inserted manually and which projects on the outside.Safety glasses according to claim 1, characterized in that the controller switch (320) comprises: a welding switch (W) pressed during welding to select a selection of the thinning step desired for welding (step 9, step 10 or step 11); a cutting / grinding switch (C) pressed during cutting / grinding to select a thinning step desired for cutting / grinding (step 5 or step 6); a sensitivity switch (SE) for adjusting the sensitivity to light intensity at a work site or for an intended work for controlling dimming of the LCD lenses (100), wherein the sensitivity is selected as a high level (H), a middle level (M) and a lower level (L) for the vicinity of a work site.Safety glasses according to claim 1, characterized in that the control switch (320) comprises a battery remaining charge indicator lamp (280), a welding condition switch (260), a cutting / grinding condition switch (250), and a sensitivity switch (270).Safety glasses according to claim 1, characterized in that a transparent cap (290) having a fitting and a removing protrusion (280) is provided on a side surface to facilitate fitting and releasing thereof, and that the cap is mounted on a front of the LCD lenses (100) to protect them.The safety glasses according to claim 1, characterized bythe following features: the frame (200) comprises a front frame (200a) and a rear frame (200b); the front frame (200a) is connected to a receiving groove and a fixing protrusion, and the rear frame (200b) is provided with a central mounting groove (110) provided at the center thereof, further with lateral mounting grooves (120) on both sides of the center; a side surface protecting frame (500-1) is provided; the side surface protecting frame (500-1) comprises an inner case (160) made of hard material and an outer case (170) made of soft material for achieving tight contact with the face surface, and the inner and outer cases (170) are made by double injection molding; the inner case (160) is provided with a central mounting protrusion (110'), a lateral mounting protrusion (120'), and a wing surface (190) surrounding a side surface of the front frame (200a), the central mounting protrusion (110') and the lateral mounting protrusion (120') being coupled to the mounting grooves (110, 120); the decoupling is performed by applying a tension to the protrusions.Safety glasses according to claim 1, characterised in that they are used for medical operations, industrial applications, sports applications, as sun glasses and as fashion glasses.

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