Wearing safety goggles is necessary since welding flame generated during a welding work emits strong ultraviolet rays. At this time, the safety goggles to be worn for welding is equipped with dark lenses, such that the goggles block ultraviolet rays but has low transparency. Therefore, an object cannot be checked before welding flame is generated. Accordingly, the operator tries a welding without wearing goggles many times such that the sight of an operator is degraded and it is difficult to check an accurate welding point. Transparency decreases because of glaucous appearance caused by a refractive index difference between a lens and a material when coating the surface of the lens with an ultraviolet blocking agent as a way of avoiding the dark lens a function does not operate properly since an ultraviolet blocking agent is pyrolyzed in glass at a processing temperature of 500°C or more when added to a lens body and transparency is degraded since glaucous appearance is generated like a case where an ultraviolet blocking agent forms a white film and is applied even if (drawing 6) a shifting phenomenon is accompanied, in which tissues of polymer lens push the ultraviolet blocking agent out to the outside of tissue up to the surface of a plastic lens while plastic can be processed by being mixed at a processing temperature of 200-300°C which is lower than glass. To solve the above problems, the present invention can be applied to goggle products such as goggles for welding and outdoor goggles (sunglasses) by having an ultraviolet blocking effect in a case (drawing 1) of adding solution, in which a solvent is mixed with an ultrasonic blocking agent, in a glass and plastic bottle and using the mixture as a lens.용접작업시 발생하는 용접 불꽃은 강한 자외선을 방출하므로 보안경을 착용하고 작업을 한다. 이때 착용하는 용접용 보안경은 짙은 색의 렌즈를 장착하게 되는데, 자외선을 차단하나, 투명도가 낮아 용접 불꽃이 발생 전에는 사물을 확인할 수 없어서 착용하지 않고 용접을 시도하는 경우가 많으므로 작업자의 시력 저하를 일으키고 정확한 용접 포인트를 확인하기도 어렵다. 짙은 색의 렌즈를 탈피하는 방안중 하나로는 렌즈 표면에 자외선 차단제를 코팅할 경우 약재와 렌즈의 굴절률 차이로
