Effectiveness of Light Source Efficiency for Characterization of Colored Surface Luminance

2021 ◽  
pp. 1-13
Author(s):  
Peiyu Wu ◽  
Yi Lin ◽  
Qi Yao
Keyword(s):  
Light Source

scholarly journals Design of an inexpensive integrating sphere laboratory setup for the optical characterization of a light source

2015 ◽  
Author(s):  
Frédéric B. Leloup ◽  
Sven Leyre ◽  
Toon Van den Abeele ◽  
Peter Hanselaer
Keyword(s):  
Light Source ◽  
Optical Characterization ◽  
Integrating Sphere ◽  
Laboratory Setup

Mechanical Characterization of UV Photopolymerized PMMA with Different Photo-Initiator Concentration

2021 ◽  
Vol 903 ◽  
pp. 11-16
Author(s):  
M.A. Manjunath ◽  
K. Naveen ◽  
Prakash Vinod ◽  
N. Balashanmugam ◽  
M.R. Shankar
Keyword(s):  
Mechanical Properties ◽  
Light Source ◽  
Polymethyl Methacrylate ◽  
Biomedical Applications ◽  
Mechanical Characterization ◽  
Uv Light ◽  
Curing Time ◽  
Uv Led ◽  
Pmma Resin

Polymethyl methacrylate (PMMA) is one among few known photo-polymeric resin useful in lithography for fabricating structures having better mechanical properties to meet the requirement in electronics and biomedical applications. This study explores the effect of Photo Initiator (PI) concentration and also curing time on strength and hardness of Polymethyl methacrylate (PMMA) obtained by UV photopolymerization of Methyl methacrylate (MMA) monomer. The UV LED light source operating at the wavelength of 364 nm is used with Benzoin Ethyl Ether (BEE) as photo initiator. The curing of PMMA resin is supported with peltier cooling device placed at the bottom of the UV light source. The characterisation study of UV photo cured PMMA is analysed through nano indenter (Agilent Technologies-G200). The current work investigates the influence of PI concentration and curing time in achieving maximum mechanical properties for UV photopolymerized PMMA.

The resistive-heating characterization of laser heating system and LaB6 characterization of X-ray diffraction of beamline 12.2.2 at advanced light source

2010 ◽  
Vol 71 (8) ◽  
pp. 1179-1182 ◽  
Author(s):  
Jinyuan Yan ◽  
Jason Knight ◽  
Martin Kunz ◽  
Selva Vennila Raju ◽  
Bin Chen ◽  
...  
Keyword(s):  
Light Source ◽  
Laser Heating ◽  
Heating System ◽  
X Ray Diffraction ◽  
Resistive Heating ◽  
X Ray ◽  
Advanced Light Source

scholarly journals Characterization of spatially resolved high resolution x-ray spectrometers for high energy density physics and light source experiments

2014 ◽  
Vol 85 (11) ◽  
pp. 11D612 ◽  
Author(s):  
K. W. Hill ◽  
M. Bitter ◽  
L. Delgado-Aparacio ◽  
P. Efthimion ◽  
N. A. Pablant ◽  
...  
Keyword(s):  
High Resolution ◽  
Energy Density ◽  
Light Source ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
High Energy Density Physics ◽  
Spatially Resolved

Optical Methods for Indoor Characterization of Small-Size Solar Concentrators Prototypes

2010 ◽  
Vol 74 ◽  
pp. 196-204 ◽  
Author(s):  
Antonio Parretta ◽  
Andrea Antonini ◽  
Maria Angela Butturi ◽  
Emiliano Milan ◽  
Pierangelo Di Benedetto ◽  
...  
Keyword(s):  
Light Source ◽  
Collection Efficiency ◽  
Direct Method ◽  
Optical Methods ◽  
Solar Light ◽  
Direct Integral ◽  
Solar Concentrators ◽  
Innovative Methods ◽  
A Direct Method

The light collection properties of different types of solar concentrators have been investigated by applying conventional and innovative methods of characterization [1, 2]. Four types of optical methods were applied: i) a “direct” method using a laser beam as light source; ii) a “direct” method using a parallel beam simulating the direct component of solar light; iii) a “direct” integral method using a lambertian light source simulating the diffuse component of solar light; iv) an “inverse” method using a lambertian light source applied at the receiver side, thereby reversing the light path. The optical properties derived by applying the above three methods were: i) the local optical collection efficiency, resolved on the entrance point and direction of incidence ii) the overall optical collection efficiency under collimated light, resolved on direction of incidence; iii) the spatial and angular distribution of flux on the receiver.

Light source based on a 100 mm-long monolithic undulator magnet with a very short 4 mm-period length

2019 ◽  
Vol 26 (6) ◽  
pp. 1902-1910 ◽  
Author(s):  
Shigeru Yamamoto ◽  
Shigeru Kashiwagi ◽  
Shinichi Masuda ◽  
Nobuhiko Nakanii ◽  
Tomonao Hosokai ◽  
...  
Keyword(s):  
Light Source ◽  
Field Measurements ◽  
Period Length ◽  
Calculated Spectrum ◽  
Fundamental Radiation ◽  
Novel Method ◽  
Electron Photon ◽  
Photon Science

A novel method to fabricate undulator magnets of a-few-millimetre-period length is being explored. Plate-type magnets, 100 mm-long with 4 mm-period length, have been successfully fabricated. They produce an undulator field of approximately 3 kG at a gap of 1.6 mm. Prototype undulators based on this technology have been constructed. Field measurements and characterization show that the quality of the undulator field of these plate magnets is sufficient for an undulator light source, and the calculated spectrum shows that the fundamental radiation emitted from this field is quite satisfactory. Test experiments for light generation using a real electron beam have been carried out at a test accelerator at the Research Center for Electron Photon Science (ELPH), Tohoku University, Japan, which is able to realize optics conditions to accept a very short gap of ∼1.6 mm. First observation and characterization of blue light was successfully accomplished.

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