FRESNEL LENS WITH VARIABLE DRAFT ANGLE

• Main Authors: DUBOIS VINCENT, MBATA SAMIRA, CANONNE THOMAS, HOANG VAN THAI, AMIEL FRANCOIS XAVIER, DE LAMBERTERIE ANTOINE, LEFAUDEUX NICOLAS
• Format: Patent
• Language: English; Korean
• Published: 20.03.2019
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

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...