We present a fast step-by-step method to design double free-form LED lens quickly; tiny rectangular light field with high efficiency can be achieved. Lens construction just need to derive two contour lines according to geometrical optics analysis. Lenses with different design angles are constructed...
(ABRIDGED) Aims: We discuss and characterize micro-lensing among the 3 brightest lensed images (A-B-C) of the gravitational lens system RXS J1131-1231 (a q... D Sluse,Claeskens, J.-F.,Hutsemékers, D.,... - 《Astronomy & Astrophysics》 被引量: 35发表: 2006年 No-slip images of...
ODM manufacturer of Laser lens, industrial lens, medical lens, field lens. The company has a professional R&D and design team, to provide customers with customized optical lenses, lens design and customization service. The company's designers are experienced, many customized lenses and lens cases h...
To find the geodesic lens shape that is equivalent to an inhomogeneous index profile, we equate the optical length element dl in the inhomogeneous profile to the physical distance on a deformed surface of variable height z(ρ) $${{{\rm{d}}}{l}^{2}={n}^{2}(r)\left({{{\rm{d}}}...
D806 Lenses Material Polycarbonate Lenses Color MULTI Gender MEN Frame Material Acetate View more Description Report Item Specifications: Frame Material: Acetate Lens Material: Polycarbonate Lens Optical Attribute: UV400 Protection, Mirror Coating Lens Height: Approximately 11cm Lens Width: Approximately 19...
doubled double-date Doubleday Doubleday Abner double-dealer double-dealing double-decker double-declutch double-density double-digit double-dip double-dip recession double-dipper double-dipping double-dotted double-double double-dumped double-Dutch ...
•选择“Gen”按钮，在aperturetype中选择Entrancepupildiameter，Aperturevalue为50。2023/11/4 5 第二步：视场和波长的设置 •点“Fie”和“Wav”按钮，•视场角为0，7，10三个，•波长直接选择可见光。2023/11/4 6 第三步：建立surfacedata •建立6个面，包括Obj,Stop,3lens和imagesurface。•输入...
2021/6/15版权所有 2003 讯技光电(上海)股份有限公司7第三步:建立surface data建立6个面,包括Obj, Stop,3 lens和image surface。输入玻璃牌号,前面为BK7,后面为火石F2。2021/6/15版权所有 2003 讯技光电(上海)股份有限公司8第四步:为F/#添加Solve 在光学面4的curvature上,增加solve:将surface 4、 4的...
Lens Color Revo Coating Gold,Blue,Red,Green,Silver,Black,etc Feature Triple-Layer High Density Face Sponge, Comfortable Function Anti-Fog, UV Protection, Keep Warm Use Skiing,Snow Sports, Outdoor Used Custom Design/Color Accepted Applications Adul...
daccess-ods.un.org If the evaporator and compressor have a large volume, one-sided evacuation may be used, otherwise double-sided evacuation is recommended. secop.com 如果蒸发器和压缩机有较大容积,则可以 使用单侧排空,否则,建议使用双 侧排 空。 secop.com By analyzing your sealing requirements...