FRESNEL LENS WITH VARIABLE DRAFT ANGLE

The present invention relates to a Fresnel lens (1) with Fresnel prisms (ei) having a first facet (21), called the main facet, and a second facet (22), called the draft facet, the draft facet making a draft angle (δ) to the optical axis, the draft angle (δ) being variable along at least one Fresnel...

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Main Authors DUBOIS VINCENT, MBATA SAMIRA, CANONNE THOMAS, HOANG VAN THAI, AMIEL FRANCOIS XAVIER, DE LAMBERTERIE ANTOINE, LEFAUDEUX NICOLAS
Format Patent
LanguageEnglish
Korean
Published 20.03.2019
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:The present invention relates to a Fresnel lens (1) with Fresnel prisms (ei) having a first facet (21), called the main facet, and a second facet (22), called the draft facet, the draft facet making a draft angle (δ) to the optical axis, the draft angle (δ) being variable along at least one Fresnel prism, so that the draft angle is higher on one side of the lens than on the other side thereof. 본 발명은 메인 패싯이라고 불리는 제 1 패싯(21)과, 드래프트 패싯이라고 불리는 제 2 패싯(22)을 갖는 프레넬 프리즘(e)을 갖는 프레넬 렌즈(1)에 관한 것이며, 드래프트 패싯은 광축에 대해 드래프트각(δ)을 이루고, 드래프트각(δ)은 렌즈의 일 측부 상의 드래프트각이 렌즈의 타 측부 상의 드래프트각보다 크도록, 적어도 하나의 프레넬 프리즘을 따라 가변적이다.
Bibliography:Application Number: KR20180108555