CCTV Blue Light Protecting Varifocal Lens For CCTV

The present invention relates to a varifocal lens for a CCTV having a blue light blocking function, which generates natural colors of an image formed by a CCTV by properly reducing a blue light as an LED illumination is generalized, and a streetlamp on a road side, a traffic light, or signs are chan...

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Hauptverfasser: BAK, JIN HYEOK, HAN, DOO HEE, GIM, MYEONG SEOK, YANG, UI DONG
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HAN, DOO HEE
GIM, MYEONG SEOK
YANG, UI DONG
description The present invention relates to a varifocal lens for a CCTV having a blue light blocking function, which generates natural colors of an image formed by a CCTV by properly reducing a blue light as an LED illumination is generalized, and a streetlamp on a road side, a traffic light, or signs are changed as the LED illumination. According to the present invention, the varifocal lens for a CCTV is economically efficient by using a composite of a blue light blocking lens and a plastic lens using the composite to block ultraviolet rays including near ultraviolet rays and the blue light in a short wavelength area increasing fatigue of eyes and dazzling, and easily controlling a curvature. According to the present invention, the varifocal lens has a simple structure and can be conveniently applied, as the lens in a part is replaced by an existing varifocal lens. According to the present invention, the varifocal lens can be conveniently applied to the varifocal lens formed of a general glass lens only by locating a blue light blocking filter at a proper position in a body tube when the blue light blocking lens is used as a flat surface filter. 본 발명은, LED 조명이 점점 일반화되어가면서 도로변 가로등이나 신호등 또는 간판들이 LED 조명으로 바뀌어 가고 있는데 이 경우 청색광을 적절히 감소시켜 CCTV에 만들어지는 상의 색상이 자연스럽게 하는 청색광 차단기능을 갖는 CCTV용 가변초점렌즈에 관한 것이다. 본 발명에 따르면, 눈부심과 눈의 피로감을 가중시키는 단파장 영역의 청색광과 근자외선을 포함한 자외선을 차단시킬 수 있도록 한 청색광 차단렌즈의 조성물 및 그 조성물을 이용한 플라스틱 렌즈를 사용하므로 굴절률을 쉽게 조절할 수 있는 경제적 효과가 있다. 본 발명에 따른 장치는, 기존의 가변초점렌즈에 한 부분의 렌즈를 교체하면 되므로, 구조가 단순하여 응용하기가 편리하다. 또한 본 발명에 따른 장치는, 청색광 차단렌즈를 평면필터를 사용하면 경통 내 적절한 위치에 청색광차단필터를 위치시키면 되므로 일반 유리렌즈로 되어있는 가변초점렌즈에 적용이 편리하다.
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According to the present invention, the varifocal lens can be conveniently applied to the varifocal lens formed of a general glass lens only by locating a blue light blocking filter at a proper position in a body tube when the blue light blocking lens is used as a flat surface filter. 본 발명은, LED 조명이 점점 일반화되어가면서 도로변 가로등이나 신호등 또는 간판들이 LED 조명으로 바뀌어 가고 있는데 이 경우 청색광을 적절히 감소시켜 CCTV에 만들어지는 상의 색상이 자연스럽게 하는 청색광 차단기능을 갖는 CCTV용 가변초점렌즈에 관한 것이다. 본 발명에 따르면, 눈부심과 눈의 피로감을 가중시키는 단파장 영역의 청색광과 근자외선을 포함한 자외선을 차단시킬 수 있도록 한 청색광 차단렌즈의 조성물 및 그 조성물을 이용한 플라스틱 렌즈를 사용하므로 굴절률을 쉽게 조절할 수 있는 경제적 효과가 있다. 본 발명에 따른 장치는, 기존의 가변초점렌즈에 한 부분의 렌즈를 교체하면 되므로, 구조가 단순하여 응용하기가 편리하다. 또한 본 발명에 따른 장치는, 청색광 차단렌즈를 평면필터를 사용하면 경통 내 적절한 위치에 청색광차단필터를 위치시키면 되므로 일반 유리렌즈로 되어있는 가변초점렌즈에 적용이 편리하다.</abstract><oa>free_for_read</oa></addata></record>
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OPTICS
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title CCTV Blue Light Protecting Varifocal Lens For CCTV
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