Free-Form Micro-Optics Generate Customized Light Fields for Highest-Quality FPD Production

2006 ◽  
Author(s):  
Oliver Homburg ◽  
Wieland Hill ◽  
Dirk Hauschild ◽  
Vitalij Lissotschenko
Keyword(s):  
Free Form ◽  
Light Fields ◽  
Micro Optics

scholarly journals Free Form Incident Light Fields

2008 ◽  
Vol 27 (4) ◽  
pp. 1293-1301 ◽  
Author(s):  
J. Unger ◽  
S. Gustavson ◽  
P. Larsson ◽  
A. Ynnerman
Keyword(s):  
Incident Light ◽  
Free Form ◽  
Light Fields

Free form micro-optics enables uniform off-axis illumination and superposition of high power laser devices

2008 ◽  
Author(s):  
Tanja Bizjak ◽  
Oliver Homburg ◽  
Andreas Bayer ◽  
Thomas Mitra ◽  
Lutz Aschke
Keyword(s):  
High Power ◽  
Free Form ◽  
High Power Laser ◽  
Power Laser ◽  
Micro Optics ◽  
Laser Devices

Fabrication of free-form micro-optics: design assessment for manufacturability

2021 ◽  
Author(s):  
Tamara Aderneuer ◽  
Oscar Fernández ◽  
Julio Chaves ◽  
Ruben Mohedano ◽  
Rolando Ferrini
Keyword(s):  
Free Form ◽  
Design Assessment ◽  
Micro Optics ◽  
Optics Design

scholarly journals Laser 3D Printing of Inorganic Free-Form Micro-Optics

2021 ◽  
Author(s):  
Diana Laura Gonzalez Hernandez ◽  
Simonas Varapnickas ◽  
Greta Merkininkaite ◽  
Arunas Ciburys ◽  
Darius Gailevičius ◽  
...  
Keyword(s):  
3D Printing ◽  
Open Space ◽  
Free Form ◽  
Inorganic Substance ◽  
Optical Elements ◽  
Optical Components ◽  
New Directions ◽  
Micro Optics ◽  
Harsh Conditions ◽  
Intensity Radiation

A pilot study on laser 3D printing of inorganic free-form micro-optics is experimentally validated. Ultrafast laser nanolithography is employed for structuring hybrid organic-inorganic material SZ2080TM followed by high-temperature calcination post-processing. The combination allows production of 3D architectures and the heat-treatment results in converting the material to inorganic substance. The produced miniature optical elements are characterized and their optical performance demonstrated. Finally, the concept is validated for manufacturing compound optical components such as stacked lenses. This is opening for new directions and applications of laser made microoptics under harsh conditions such as high intensity radiation, temperature, acidic environment, pressure variations, which include open space, astrophotonics, and remote sensing.

Glassy free-form 3D micro-optics enabled via ultrafast laser 3D nanolithography

2021 ◽  
Author(s):  
Simonas Varapnickas ◽  
Meguya Ryu ◽  
Darius Gailevicius ◽  
Tai Suzuki ◽  
Greta Merkininkaite ◽  
...  
Keyword(s):  
Ultrafast Laser ◽  
Free Form ◽  
Micro Optics

scholarly journals Laser 3D Printing of Inorganic Free-Form Micro-Optics

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 577
Author(s):  
Diana Gonzalez-Hernandez ◽  
Simonas Varapnickas ◽  
Greta Merkininkaitė ◽  
Arūnas Čiburys ◽  
Darius Gailevičius ◽  
...  
Keyword(s):  
3D Printing ◽  
Open Space ◽  
Free Form ◽  
Direct Write ◽  
Optical Elements ◽  
Optical Components ◽  
Inorganic Substances ◽  
Micro Optics ◽  
Laser Direct Write ◽  
Harsh Conditions

A pilot study on laser 3D printing of inorganic free-form micro-optics is experimentally validated. Ultrafast laser direct-write (LDW) nanolithography is employed for structuring hybrid organic-inorganic material SZ2080TM followed by high-temperature calcination post-processing. The combination allows the production of 3D architectures and the heat-treatment results in converting the material to inorganic substances. The produced miniature optical elements are characterized and their optical performance is demonstrated. Finally, the concept is validated for manufacturing compound optical components such as stacked lenses. This is an opening for new directions and applications of laser-made micro-optics under harsh conditions such as high intensity radiation, temperature, acidic environment, pressure variations, which include open space, astrophotonics, and remote sensing.

Minimal contribution of cell-bound antibodies to the immunoscintigraphy of inflamed joints with 99mTc-anti-CD4 monoclonal antibodies

2002 ◽  
Vol 41 (03) ◽  
pp. 129-134 ◽  
Author(s):  
A. Wolski ◽  
E. Palombo-Kinne ◽  
F. Wolf ◽  
F. Emmrich ◽  
W. Becker ◽  
...  
Keyword(s):  
T Cells ◽  
Monoclonal Antibodies ◽  
Synovial Membrane ◽  
In Vitro Release ◽  
Peritoneal Macrophages ◽  
Lymphoid Organs ◽  
Whole Body ◽  
Free Form ◽  
Ankle Joints

Summary Aim: The cellular joint infiltrate in rheumatoid arthritis patients is rich in CD4-positive T-helper lymphocytes and macrophages, rendering anti-CD4 monoclonal antibodies (mAbs) suitable for specific immunoscintigraphy of human/ experimental arthritis. Following intravenous injection, however, mAbs are present both in the free form and bound to CD4-positive, circulating monocytes and T-cells. Thus, the present study aimed at analyzing the relative contribution of the free and the cell-bound component to the imaging of inflamed joints in experimental adjuvant arthritis (AA). Methods: AA rat peritoneal macrophages or lymph node T-cells were incubated in vitro with saturating amounts of 99mTc-anti-CD4 mAb (W3/25) and injected i.v. into rats with AA. Results: In vitro release of 99mTc-anti-CD4 mAb from the cells was limited (on average 1.57%/h for macrophages and 0.84%/h for T-cells). Following i.v. injection, whole body/joint scans and tissue measurements showed only negligible accumulation of radioactivity in inflamed ankle joints (tissue: 0.22 and 0.34% of the injected activity, respectively), whereas the radioactivity was concentrated in liver (tissue: 79% and 71%, respectively), kidney, and urinary bladder. Unlike macrophages, however, anti-CD4 mAb-coated T-cells significantly accumulated in lymphoid organs, the inflamed synovial membrane of the ankle joints, as well as in elbow and knee joints. Conclusion: While the overall contribution of cell-bound mAbs to the imaging of arthritic joints with anti-CD4 mAbs is minimal, differential accumulation of macrophages and T-cells in lymphoid organs and the inflamed synovial membrane indicates preferential migration patterns of these 2 cell populations in arthritic rats. Although only validated for 99mTc-anti-CD4 mAbs, extrapolation of the results to other anticellular mAbs with similar affinity for their antigen may be possible.

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