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optical brightener

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We are one of the leading companies in Pakistan dyes manufacturer and dyes exporter since 1989. Our Head Office is based in Lahore and manufacturing facility in Gadoon with Sales Offices in Sialkot, Lahore, Karachi and Faisalabad.

optical brightener

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optical mineralogy

Interaction of polarised light with minerals:LAB TS-1:Double refractionReliefColour and pleochroismOther properties that can be observed in PPLLAB TS-2:Isotropy and anisotropyBirefringence and interferenceExtinction angleSign of elongation. Nesse, 2000; Fig. 7.4. Polarisation. unpolarised light(all possible vibration directions).

1.15k views • 26 slides

Optical Microscopy

Optical Microscopy. Study of how light passes through thin sections – rock cut and polished to about 0.3 mm thickness Use properties of light absorption and propogation through a mineral  affected by atomic arrangement and composition

1.6k views • 43 slides

Optical Tweezers

Optical Tweezers. rolf. Project Goals. We will calibrate the strength of an optical trap (Optical Tweezer) Optical Tweezers may be used to measure very small forces (femtoNewton, 10 -15 N) Applications include Biophysics. Description.

926 views • 26 slides

Optical Microscopes

Optical Microscopes. Justification History Components of the Optical Microscope Theory of operation Basic Microscope Magnification Refraction of light and Snell’s Law The thin lens equation. Imaging and resolution Confocal Microscopy Vendors. Outline. Why Optical Microscopes?.

608 views • 21 slides

OPTICAL ILLUSIONS...

OPTICAL ILLUSIONS. OPTICAL ILLUSION 1. This is the Bunny/Duck illusion . At first glance, what do you see? Now give it some time, but do not focus on one certain area, and then ask Yourself; what do I really see? Now, look again. You might be surprised!!!!!!. OPTICAL ILLUSION 2.

550 views • 17 slides

Optical systems

Optical systems. Hecht 5.7 Wednesday October 2, 2002. Field Stop. The aperture that controls the field of view by limiting the solid angle formed by chief rays. As seen from the centre of the entrance pupil (E n P), the field stop (or its image) subtends the smallest angle.

741 views • 29 slides

Optical Molasses

Optical Molasses. Colleen Downs Stephanie Pietromonaco Sanjay Talluri. Definition. Laser cooling technique that cools atoms to temperatures lower than the Doppler limit Uses 3 pairs of counterpropagating circularly polarized laser beams which intersect where the atoms are present . History.

279 views • 12 slides

Optical Microscopy

Optical Microscopy. Introduction Lens formula, Image formation and Magnification Resolution and lens defects Basic components and their functions Common modes of analysis Specialized Microscopy Techniques Typical examples of applications. Diffraction of Light.

1.86k views • 46 slides

Optical Activity/ Optical Rotation

Optical Activity/ Optical Rotation. Optical Activity. Optical Activity. A substance is optically active if it rotates a plane of polarized light. In order for a substance to exhibit optical activity, it must be chiral and one enantiomer must be present in excess of the other.

2.61k views • 25 slides

Optical Mineralogy

Optical Mineralogy. WS 2012/2013. The week before last… . BIAXIAL INDICATRIX EXTINCTION ANGLES. Biaxial indicatrix - summary. Extinction Angle. I = 153,0°. Extinction angle e = I – II = 29,5°. For MONOCLINIC and TRICLINIC crystals….

990 views • 23 slides

Optical Mineralogy

Optical Mineralogy. WS 2012/2013. Next week…. There is NO lecture REVISE!. Last week…. Indicatrix - 3-d representation of changing n in minerals Uniaxial indicatrix - ellipsoid of rotation  tetragonal, hexagonal and trigonal crystal systems

1.39k views • 37 slides

OPTICAL INSTRUMENT

Done By : Saeed Zaid / Osama Zaid / Abdulla Khamis Class : 12-03. OPTICAL INSTRUMENT . Magnifier. Magnifier A convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle (see image). Telescopes. Elbow telescope

388 views • 11 slides

OPTICAL ISOMERISM

OPTICAL ISOMERISM. OPTICAL ISOMERISM. Occurrence another form of stereoisomerism occurs when compounds have non-superimposable mirror images Isomers the two different forms are known as optical isomers or enantiomers they occur when molecules have a chiral centre

1.12k views • 23 slides

Optical Activity

Optical Activity. Chiral compounds bend plane polarized light Angle depends on concentration, path length, solvent, temperature, wavelength of light, which enantiomer. The specific rotation of sucrose is reported:. [ a ] 20 D = +66.4 o (H 2 O). D = sodium D-line = 589 nm. Specific Rotation.

1.65k views • 6 slides

Optical Identity

Optical Identity . By: Ash, Jess, Natasha, Eslie. Mission. Prevent customers from using fraud identity (false tickets) when being admitted into the theme park. . Objectives. Earn more money. Stop letting in those with admission passes that are not theirs.

212 views • 11 slides

Optical Interconnects

Optical Interconnects. Outline. Interconnection Networks Terminology, basics, examples Optical Interconnects Motivation Architecture examples for Data Centers and HPC Building blocks Sum-up - issues. Interconnection Networks: What is an interconnection network?.

950 views • 46 slides

Optical Tweezers

Optical Tweezers. Team : Maryam Badakhshi , Shannon O’Keefe, Laura Poloni , Hasmita Singh. Overview. 1) Background &amp; Applications 2 ) Apparatus 3 ) Laser Safety. 1 . Background &amp; Applications. Optical Tweezers.

479 views • 17 slides

Optical Tweezers

Optical Tweezers. Team : Maryam Badakhshi , Shannon O’Keefe, Laura Poloni , Hasmita Singh. Overview. 1) Introduction 2) Background &amp; Applications 3) Apparatus 4) Laser Safety. 1. Introduction. Experiment Context. Optical Tweezers are a brand new experiment

657 views • 20 slides

Optical Fiber

Optical Fiber. &amp; OF Cables. THE PRESENTATION. What this presentation is about?

666 views • 16 slides

Optical Core Networks Optical Transport Network

Optical Core Networks Optical Transport Network. Achille Pattavina, Politecnico di Milano, pattavina@elet.polimi.it Guido Maier, Politecnico di Milano, maier@elet.polimi.it. Outline. Protocol layering Signalling Transport hierarchy. Optical transfer layer.

1.8k views • 71 slides

Courts Optical Grenada Optical Service Company

This presentation provides information on where you can locate Courts Optical Store in Grenada. Learn more about Courts Optical Grenada and their services and products.

230 views • 7 slides

Acid Dyes – Textile Dyes – Optical Brightener:

Sardar Chemicals provide different types of dyes in all over the Pakistan. We are providing reactive dyes, leather dyes, acid dyes, textile dyes and optical brightener from decade. Sardar Chemical Industries Ltd, a public listed company on the Pakistan Stock Exchange, is a leading manufacturer of Chemicals and Dyestuff for the Textile, Paper and Leather Industry.

127 views • 7 slides

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