Results 81 to 90 of about 45,422,298 (247)
Two-step method for lens system design.
Optics Express, 2010 This paper proposes a method for lens system design. It consists of two main steps called Glass-Selection Step and Further-Optimization Step. We modify coordinate-wise algorithm to obtain the glass combination in Glass-Selection Step.
Lei Li +3 more
semanticscholar +1 more source
A Note on the Empirical Implementation of the Lens Condition [PDF]
Deardorff [Journal of International Economics 36 (1994) 167-175] offers an intuitively appealing test for factor price equality (FPE). He demonstrates that FPE is impossible if the set (i.e., lens) of points defined by regional factor abundance vectors ...
Andrew B. Bernard +2 more
core
Simulation of an ion Optical Transport and Focusing System
Iraqi Journal of Physics, 2009 A simulated ion/electron optical transport and focusing system has been put forward to be mounted on high voltage transmission electron microscope for in situ investigations.
Ahmad K. Ahmad
doaj
Flexible Electrowetting-on-Dielectric Microlens Array Sheet
Micromachines, 2019 We have fabricated a fully-flexible, focus-tunable microlens array on a sheet and demonstrated its imaging capabilities. Each liquid lens of the array is individually tunable via electrowetting on dielectric (EWOD) actuation and is situated on a ...
Kari L. Van Grinsven +2 more
doaj +1 more source
IEEE Photonics Journal, 2019 For the absolute cavity length interrogation of fiber-optic Fabry-Perot (FP) sensors, a low-coherence interferometer based on the Powell lens is proposed and demonstrated.
Zhibo Ma +6 more
doaj +1 more source
International survey of rigid contact lens fitting
, 2013 Purpose\ud \ud To determine the extent of rigid contact lens fitting worldwide and to characterize the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Survey forms were sent to contact lens fitters in up to 40 countries between ...
Morgan, Philip B. +3 more
core +1 more source
Compact Chromatic Confocal Lens with Large Measurement Range
SensorsSpectral confocal sensors are effective for measuring displacements. The core of the spectral confocal measurement system is a dispersive objective lens that uses optical dispersion to establish a one-to-one correspondence between the focusing position ...
Ning He +8 more
doaj +1 more source
Integrated lenses for microfluidic systems
, 2009 Greater integration of optical devices is required in microfluidic systems for on-chip functionality, with lenses being key components. In this paper several candidate lens types are compared and simulations are presented which show that the paraxial ...
Wilkinson, James S., Hunt, Hamish C.
core +1 more source
Underwater Binocular Meta-lens
Underwater optics in all-aquatic environments is vital for environmental management, biogeochemistry, phytoplankton ecology, benthic processes, global change, etc.
Cheng Hung Chu (2071147) +7 more
core +1 more source
, 2010 Conference PaperThe central theme of this paper is the interrogation of factors relating the successful appropriation of open-source technology in an industrially developing context using a LeNS-inspired sustainable mobility project set in Cape Town ...
M'Rithaa, Mugendi K. +1 more
core