scholarly journals Temporal imaging with a high filling factor

APL Photonics ◽  
2020 ◽  
Vol 5 (9) ◽  
pp. 090801
Author(s):  
Avi Klein ◽  
Inbar Sibony ◽  
Sara Meir ◽  
Hamootal Duadi ◽  
Michelle Y. Sander ◽  
...  
Keyword(s):  
Filling Factor ◽  
High Filling Factor

Scaling and Anisotropy of Critical Currents in BSCCO-2223 Tapes with High Filling Factor

1997 ◽  
pp. 839-842
Author(s):  
Michael Hortig ◽  
Bent Gabrielsen ◽  
Beate Lehndorff ◽  
Bernhard Lücke ◽  
Helmut Piel ◽  
...  
Keyword(s):  
Filling Factor ◽  
Critical Currents ◽  
High Filling Factor

Formation of high-filling-factor microlens array on the posts

2020 ◽  
Author(s):  
Zeyuan Song ◽  
Yan Long ◽  
Mingliang Pan ◽  
Bo Dai ◽  
Dawei Zhang
Keyword(s):  
Filling Factor ◽  
Microlens Array ◽  
High Filling Factor

Fabrication of a Micro Lens Array with a High Filling Factor Using a Direct Molding Method

2013 ◽  
Vol 773-774 ◽  
pp. 712-721
Author(s):  
Chien Yao Huang ◽  
Chun Chieh Chen ◽  
Hsiao Yu Chou ◽  
Wei Long Peng ◽  
Yu Wei Lin
Keyword(s):  
Filling Factor ◽  
Injection Pressure ◽  
Electroless Nickel ◽  
Effective Area ◽  
Diamond Turning ◽  
Polymer Materials ◽  
Molding Method ◽  
High Filling Factor ◽  
Ultra Precision ◽  
Micro Lens

In recent years, micro lens arrays have played a crucial role in optical illumination systems. The function of micro lens arrays (MLAs) is to create a uniform light intensity or shape the light profile. Polymers that are commonly used as MLAs have several advantages, such as cost effectiveness, light weight, and easy formation. In general, the ultra-precision diamond-turning technique and plastic injection molding technique have been combined to fabricate MLAs with polymer materials. However, residual stress and non-balance injection pressure are produced on MLAs during injecting processing. Therefore, this paper presents the fabrication of MLAs using a direct molding method (DMM). The STAVAX with electroless nickel coating and PMMA were used as the mold and polymer preform, respectively. First, a mold of MLA with 100% filling factor was fabricated using the ultra-precision diamond-turning technique. A high filling factor can decrease the non-effective area of the MLA in an optical system. Subsequently, an MLA was formed on the PMMA surface using DMM processing. This paper shows the DMM process parameters, including molding temperature, molding force, and cooling rate. Moreover, the profile of the MLA was measured using a laser confocal microscope. Finally, a high filling factor MLA with a diameter of 11.5 mm, and lenses with a height of 8.5 μm and a radius of 470 μm were formed on PMMA.

Coherent Beam Combining Based on High Filling Factor Array with New Sub-Aperture Shape

2019 ◽  
Vol 56 (4) ◽  
pp. 041401
Author(s):  
奚加超 Xi Jiachao ◽  
支冬 Zhi Dong ◽  
马阎星 Ma Yanxing ◽  
司磊 Si Lei
Keyword(s):  
Filling Factor ◽  
Coherent Beam ◽  
Coherent Beam Combining ◽  
Beam Combining ◽  
High Filling Factor

Ultra Precision Diamond Shaping of an Elliptical Micro-Lens Array

2009 ◽  
Vol 407-408 ◽  
pp. 380-383
Author(s):  
Choung Lii Chao ◽  
Chun Chieh Chen ◽  
Wen Chen Chou
Keyword(s):  
Filling Factor ◽  
Flat Panel Display ◽  
Flat Panel ◽  
Lens Array ◽  
Display Devices ◽  
High Filling Factor ◽  
Ultra Precision ◽  
Micro Lens Array ◽  
Micro Lens ◽  
Better Than

Micro lens array is widely used in photonics and telecommunication products, including back-light module of flat panel display devices and white-light LED illumination. The ultra precision diamond shaping method together with tool servo technique was studied and developed in this research to generate elliptical micro lens array. Each elliptical micro lens has radii in X and Y direction of 1.0 mm and 1.5 mm respectively. A high filling-factor (100 %) elliptical micro lens array with form accuracy better than 0.15μm and surface roughness around 5nm Ra was successfully fabricated.

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