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focal length

Effect of Focal length on surface roughness of 1mm thin Brass sheet by using assist gas O 2

Effect of Focal length on surface roughness of 1mm thin Brass sheet by using assist gas O 2

... of focal length and Laser Power on quality characteristics of laser cut brass specimens have been studied in this ...–focal length is most significant factor for Surface Roughness of brass 1 ...

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Microlenses immersed in nematic liquid crystal with electrically controllable focal length

Microlenses immersed in nematic liquid crystal with electrically controllable focal length

... The fall off is perhaps due to the non-parallelism of the cell walls affecting the liquid crystal orientation. The liquid crystal switching works best when the substrate induces a pre-tilt in the crystal when no field is ...

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INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & MANAGEMENT DETERMINATION OF THE EFFECT MAGNETIC FILED INTENSITY ON REFRACTIVE INDEX BY MEANS OF FOCAL LENGTH MEASUREMENT

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & MANAGEMENT DETERMINATION OF THE EFFECT MAGNETIC FILED INTENSITY ON REFRACTIVE INDEX BY MEANS OF FOCAL LENGTH MEASUREMENT

... and focal length (f) increases and decreases upon increasing magnetic field intensity (H) ...and focal length to magnetic field intensity theoretically are drawn in Fig(1) ...that focal ...

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Variable focal length liquid crystal immersed microlenses

Variable focal length liquid crystal immersed microlenses

... A larger focal length range is possible if there is no restriction that the mask must be binary. An example, which retains the attraction of remaining almost standard IC pro­ cessing is photosculpting. ...

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An Introduction to Dynamic Optical Optimization

An Introduction to Dynamic Optical Optimization

... the focal length of a single lens, mirror or an extended optical instrument, the local stability of the image thus formed is characterized by the positivity of pure correlation components of the fluctuation ...

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A Sensitivity Study of 4340 Steel Hardness Profile Heat- Treated by Laser

A Sensitivity Study of 4340 Steel Hardness Profile Heat- Treated by Laser

... The laser source was mounted on Fanuc 6 joints robot having 50 m accuracy. A very precise pyrometer was used to measure the temperature during heating. The laser source is moved longitudinally crossing the part with 310 ...

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Plasma Channel Extension by Femtosecond Laser Filamentation with a Circular Aperture Quartz Plate

Plasma Channel Extension by Femtosecond Laser Filamentation with a Circular Aperture Quartz Plate

... The experiment set-up scheme used in this work is illustrated in Fig. 1. The laser system is equipped with a commercial fs-laser system (Ti: sapphire Micra 10 and regenerative amplifier Legend Elite-USP-HE, Coherent ...

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On the design of enhancement cavities for second harmonic generation

On the design of enhancement cavities for second harmonic generation

... mirror focal length f, its incidence angle a, the astigma- tism z and the mean distance between the mirror and the crystal focus u, is now examined separately in the tangential and sagittal directions as if ...

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Ultrasonic oil-film thickness measurement: An angular spectrum approach to assess performance limits

Ultrasonic oil-film thickness measurement: An angular spectrum approach to assess performance limits

... a focal length of 23 mm in water used experimentally (see table 3) becomes a 5 mm diameter transducer of focal length in steel of ...and focal plane respectively and plane 2 is also the ...

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Control of laser light by a plasma immersed in a tunable strong magnetic field

Control of laser light by a plasma immersed in a tunable strong magnetic field

... Here we study the interaction between CP laser light and an underdense plasma with a longitudinal magnetic field. The analytical expression of critical power for relativistic self- focusing in a magnetized plasma is ...

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A compact instrument for adjusting laser beams to be accurately coincident and coaxial and its use in biomedical imaging using wave-mixed laser sources

A compact instrument for adjusting laser beams to be accurately coincident and coaxial and its use in biomedical imaging using wave-mixed laser sources

... Biomedical imaging applications that involve nonlinear optical processes such as sum-frequency gen- eration (SFG) and four-wave mixing require that the pulses are synchronized in time and the beams are coaxial to better ...

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Placement, visibility and coverage analysis of dynamic pan/tilt/zoom camera sensor networks

Placement, visibility and coverage analysis of dynamic pan/tilt/zoom camera sensor networks

... for criteria the largest side of the triangle can be minimum angle would give us covered to be increased beyond this point, the This is due to the fact that the So, focal length maximum [r] ...

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Zoom systems with tuneable lenses and linear lens movements

Zoom systems with tuneable lenses and linear lens movements

... the focal length change of the tuneable lens are already deter- mined by the collinear layout of the zoom system, we focus on the optimization of the collinear ...

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The effect of varying glucose levels on the ex vivo crystalline lens: implications for hyperglycaemia-induced refractive changes

The effect of varying glucose levels on the ex vivo crystalline lens: implications for hyperglycaemia-induced refractive changes

... vertex focal length and primary longitudinal spherical aberration together with their standard errors are shown in Table ...vertex focal length decreases with increasing glucose ...

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On the Running of the GNU (Connochaetes Taurinus) and other Animals

On the Running of the GNU (Connochaetes Taurinus) and other Animals

... Upward acceleration Regression coefficients Proportion of cycle during which 1 or more feet on the ground Stepping frequency Focal length Acceleration due to gravity Jump height in cante[r] ...

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The Modern Revolution in Physics   Benjamin Crowell pdf

The Modern Revolution in Physics Benjamin Crowell pdf

... Notation and Units quantity distance time mass density force velocity acceleration energy momentum angular momentum period wavelength frequency focal length magnification index of refrac[r] ...

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Zoom techniques for achieving scale invariant object tracking in real-time active vision systems

Zoom techniques for achieving scale invariant object tracking in real-time active vision systems

... Since optical zoom acts as a measurement gain, amplifying both resolution and tracking error, a new second camera with fixed focal length assists the zooming camera if it loses fixation—[r] ...

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LIGHT- WEIGHT MACHINE GUN OPTICAL SIGHT

LIGHT- WEIGHT MACHINE GUN OPTICAL SIGHT

... a focal length of ...long focal length eyepiece is constructed with two cemented doublets and a single negative lens that meets the requirements of telescopic sight for mounting on soldiers ...

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The development of a single camera stereo 
		vision system for starfruit inspection system

The development of a single camera stereo vision system for starfruit inspection system

... the focal length of the camera, a is ratio of the sensor size with image resolution, d is the disparity of corresponding points between two images, T is the baseline or distance between the first and second ...

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light student.odt

light student.odt

... 7: You carried out an experiment to measure the focal length of a converging lens. (i) Draw a labelled diagram of the apparatus that you used in the experiment. (ii) Describe how you found the position of ...

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