KR102550032B1 - 플라스틱 안경 렌즈 및 안경 - Google Patents
플라스틱 안경 렌즈 및 안경 Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
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- Spectroscopy & Molecular Physics (AREA)
- Eyeglasses (AREA)
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Abstract
Description
(식 1 : T=(1-R1)(1-R2)Ti/(1-R1R2Ti 2)
여기서, R1은 상기 기재에 대하여 광이 입사하는 경우의 입사면의 반사율이며, R2는 반대측의 면의 반사율이고, T는 상기 입사면 및 상기 반대측의 면의 양면의 반사와, 상기 플라스틱 안경 렌즈의 흡수를 고려한 상기 플라스틱 안경 렌즈의 투과율을 의미한다.)
도 2는 실시예 1(제 1 기재)과 비교예 1(제 2 기재)과 관련되는, 가시역(380㎚ 이상 780㎚ 이하)에 있어서의 투과율과 내부 투과율의 분포를 나타내는 그래프이다.
도 3은 실시예 1∼3의 가시역에 있어서의 투과율 분포(투과율 특성)를 나타내는 그래프이다.
도 4는 실시예 1∼3의 가시역에 있어서의 반사율 분포(반사율 특성)를 나타내는 그래프이다.
도 5는 비교예 1∼6의 가시역에 있어서의 투과율 분포(투과율 특성)를 나타내는 그래프이다.
도 6은 비교예 1∼6의 가시역에 있어서의 반사율 분포(반사율 특성)를 나타내는 그래프이다.
도 7은 렌즈의 투과광과 비투과광(직접광)과 관련되는 각 물체색을 측정하는 시험의 모식도이다.
도 8은 도 7의 시험에서 이용된 광원과 관련되는 가시역의 분광 방사 휘도의 그래프이다.
도 9는 도 7의 시험에서 이용된 각 색표와 관련되는 CIE 색도도 상의 위치를 나타내는 그래프이다.
Claims (14)
- 플라스틱제의 기재를 가지는 플라스틱 안경 렌즈에 있어서,
상기 기재에, 자외선 흡수제가 첨가되어 있고,
상기 기재는, 양면을 구비하고 있으며,
상기 기재의 상기 양면 상에는 하드 코팅층이 형성되어 있고,
각각의 상기 하드 코팅층 상에는 반사 방지막이 형성되어 있으며,
상기 반사 방지막은 ZrO2과 SiO2가 교대로 적층되어 형성되는 5층 이상의 광학 다층막이고,
상기 반사 방지막은 가시역에서 흡수 특성을 나타내지 않으며,
400㎚ 이상 780㎚ 이하의 파장역의 광에 대한 최대 투과율과 최소 투과율의 차가 10포인트 이내이며,
380㎚ 이상 780㎚ 이하의 파장역의 광에 대한 상기 기재의 하기 식 1로 나타나는 내부 투과율 Ti가, 그 파장역의 전역에서 80% 이상이고,
상기 하드 코팅층에, 금속 산화물의 미립자가 첨가되어 있으며,
상기 금속 산화물은, Sb, Sn, Si, Al, Ta, La, Fe, Zn, W, Zr, In 중 1종 이상의 금속의 산화물인 것을 특징으로 하는 플라스틱 안경 렌즈.
(식 1 : T=(1-R1)(1-R2)Ti/(1-R1R2Ti 2)
여기서, R1은 상기 기재에 대하여 광이 입사하는 경우의 입사면의 반사율이며, R2는 반대측의 면의 반사율이고, T는 상기 플라스틱 안경 렌즈의 투과율을 의미한다.) - 제 1 항에 있어서,
상기 플라스틱 안경 렌즈를 통과하지 않는 광의 색의 색상각과, 당해 광이 상기 플라스틱 안경 렌즈를 통과하였을 경우의 색의 색상각의 차의 절대값이, 1 미만인 것을 특징으로 하는 플라스틱 안경 렌즈. - 제 2 항의 상기 플라스틱 안경 렌즈가 이용되어 있는 것을 특징으로 하는 안경.
- 제 1 항의 상기 플라스틱 안경 렌즈가 이용되어 있는 것을 특징으로 하는 안경.
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