Fast and direct engraving of iridescent lettering on original product surface using laser interference to prevent counterfeiting

2018 ◽  
Vol 107 ◽  
pp. 214-220 ◽  
Author(s):  
Byeong-Hak Ha ◽  
Sanghoon Ahn ◽  
Han-Sung Bae ◽  
Hee-Shin Kang ◽  
Jeng-o Kim ◽  
...  
Keyword(s):  
Laser Interference ◽  
Original Product ◽  
Product Surface

scholarly journals Serial number coding and decoding by laser interference direct patterning on the original product surface for anti-counterfeiting

2017 ◽  
Vol 25 (13) ◽  
pp. 14644 ◽  
Author(s):  
In-Yong Park ◽  
Sanghoon Ahn ◽  
Youngduk Kim ◽  
Han-Sung Bae ◽  
Hee-Shin Kang ◽  
...  
Keyword(s):  
Laser Interference ◽  
Direct Patterning ◽  
Serial Number ◽  
Original Product ◽  
Product Surface

Conception And Fabrication Of Straight Axes Using Knowledge Management Principles

2014 ◽  
Vol 1 (1) ◽  
pp. 365-368
Author(s):  
Ionela Magdalena Rotaru ◽  
Sorin Borza
Keyword(s):  
Knowledge Management ◽  
Work Environment ◽  
Automotive Industry ◽  
Central Element ◽  
Theoretical Concepts ◽  
Application Field ◽  
Design And Manufacturing ◽  
Original Product ◽  
Practical Level

Abstractthe paper continues the research started in the paper “Conception and fabrication using knowledge management principles”. The theoretical guidelines found in the mentioned paper crystallises at a practical level in an original product – a software solution. The proposed solution has as a central element notion concerning the design and manufacturing of straight axes in the automotive industry. The application field for the proposed example regards the educational area; the software guides the user by theoretical concepts, examples, problems through practical aspects concerning the design and manufacturing of a part belonging to the axes family specific to the automotive industry. The software was developed using the Access work environment.

Ultra-sensitive Absorption Diagnostics of Thin Films for High-power Laser Interference Coatings

2015 ◽  
Author(s):  
Jorge G. Rocca ◽  
Oscar E. Martinez ◽  
Carmen Menoni ◽  
Esteban Domene
Keyword(s):  
Thin Films ◽  
High Power ◽  
High Power Laser ◽  
Laser Interference ◽  
Power Laser

scholarly journals BIOSIMILARS IN INFLAMMATORY BOWEL DISEASES: an important moment for Brazilian gastroenterologists

2015 ◽  
Vol 52 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Fábio Vieira TEIXEIRA ◽  
Paulo Gustavo KOTZE ◽  
Aderson Omar Mourão Cintra DAMIÃO ◽  
Sender Jankiel MISZPUTEN
Keyword(s):  
Small Molecules ◽  
Inflammatory Bowel Diseases ◽  
Generic Drugs ◽  
Specific Data ◽  
Chemical Structures ◽  
Bowel Diseases ◽  
Original Product ◽  
Inflammatory Bowel ◽  
The One ◽  
Extrapolation Of Indications

ABSTRACT Biosimilars are not generic drugs. These are more complex medications than small molecules, with identical chemical structures of monoclonal antibodies that lost their patency over time. Besides identical to the original product at the end, the process of achieving its final forms differs from the one used in the reference products. These differences in the formulation process can alter final outcomes such as safety and efficacy of the drugs. Recently, a biosimilar of Infliximab was approved in some countries, even to the management of inflammatory bowel diseases. However, this decision was based on studies performed in rheumatologic conditions such as rheumatoid arthritis and ankylosing spondylitis. Extrapolation of the indications from rheumatologic conditions was done for Crohn’s disease and ulcerative colitis based on these studies. In this article, the authors explain possible different mechanisms in the pathogenesis between rheumatologic conditions and inflammatory bowel diseases, that can lead to different actions of the medications in different diseases. The authors also alert the gastroenterological community for the problem of extrapolation of indications, and explain in full details the reasons for being care with the use of biosimilars in inflammatory bowel diseases without specific data from trials performed in this scenario.

scholarly journals High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference

AIP Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 025038
Author(s):  
Lang Bai ◽  
Gang Zheng ◽  
Bin Sun ◽  
Xiongxing Zhang ◽  
Qiming Sheng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
High Precision ◽  
Pressure Sensor ◽  
Continuous Wave ◽  
Continuous Wave Laser ◽  
Laser Interference ◽  
Wave Laser

In-Depth Investigation of Copper Surface Chemistry Modification by Ultrashort Pulsed Direct Laser Interference Patterning

Langmuir ◽  
2020 ◽  
Vol 36 (45) ◽  
pp. 13415-13425 ◽  
Author(s):  
Daniel W. Müller ◽  
Anne Holtsch ◽  
Sarah Lößlein ◽  
Christoph Pauly ◽  
Christian Spengler ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Copper Surface ◽  
Laser Interference ◽  
Direct Laser ◽  
Surface Chemistry Modification ◽  
Direct Laser Interference Patterning

scholarly journals Direct Laser Interference Patterning of Diffraction Gratings in Safrofilcon-A Hydrogel: Fabrication and Hydration Assessment

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 679
Author(s):  
Daniel Sola ◽  
Stephan Milles ◽  
Andrés F. Lasagni
Keyword(s):  
Laser Fluence ◽  
Contact Lenses ◽  
Laser Source ◽  
Spatial Period ◽  
Laser Interference ◽  
Periodic Patterns ◽  
Hydration Properties ◽  
Water Contact ◽  
Direct Laser ◽  
Direct Laser Interference Patterning

Refractive index modification by laser micro-structuration of diffractive optical devices in ophthalmic polymers has recently been applied for refractive correction in the fields of optics and ophthalmology. In this work, Safrofilcon-A hydrogel, used as soft contact lenses, was processed by direct laser interference patterning (DLIP) to fabricate linear periodic patterns on the surface of the samples. Periodic modulation of the surface was attained under two-beam interference by using a Q-switched laser source with emission at 263 nm and 4 ns pulse duration. Features of processed areas were studied as a function of both the interference spatial period and the laser fluence. Optical confocal microscopy used to evaluate the topography of the processed samples showed that both structured height and surface roughness increased with laser fluence. Static water contact angle (WCA) measurements were carried out with deionized water droplets on the structured areas to evaluate the hydration properties of DLIP structures. It was observed that the laser structured areas induced a delay in the hydration process. Finally, microstructural changes induced in the structured areas were assessed by confocal micro-Raman spectroscopy showing that at low laser fluences the polymer structure remained almost unaltered. In addition, Raman spectra of hydrated samples recovered the original shape of areas structured at low laser fluence.

Periodic patterning using multi-facet prism based laser interference lithography

Laser Physics ◽  
2009 ◽  
Vol 19 (3) ◽  
pp. 505-510 ◽  
Author(s):  
R. Sidharthan ◽  
F. Chollet ◽  
V. M. Murukeshan
Keyword(s):  
Interference Lithography ◽  
Laser Interference Lithography ◽  
Laser Interference
Sign in / Sign up

Export Citation Format

Share Document