SlideShare a Scribd company logo
1 of 24
Download to read offline
Laser interferometry
Antireflective coating
USE
• Vision
• Pupil Size
• Pin hole
• ‘ring’ of light that encircles the sun
• LIT. ROOM
• SOUND
Polarization
• Polarization, in Physics, is defined as a phenomenon caused due to
the wave nature of electromagnetic radiation.
• Unpolarized light is a haphazard mixture of polarized beams of light
directed in various planes. A mixture of polarized light and
unpolarized light is termed unpolarized light.
Polarization
Application
• Ophthalmic instrument (e.g Slit lamp)
• Polarizing Projection charts
• Three-dimensional picture
• Polaroid sunglasses
• Titmus fly test
• RNFL layer thickness
• Detection of defects in the intra-ocular lenses may be done by using
the principle of Birefringence
Polarization
Fluoresceine (Special Properties)
• Fluoresceine dye when exposed to light by a fundus camera, then
unbound fluorescein absorbs light of a wavelength in the range of –
465-495 nm. Which is a bluish region
• Clinical applications:
• Fluoreceine angiography is used in performing fundus angiography
and various other angiography done for diagnosing ocular, cardiac,
cerebral, and liver conditions.
Double Refraction (Birefringence)
1969 (Erasmus barthulinus)
• Birefringence is the phenomenon exhibited by certain materials in
which an incident ray of light is split into two rays, called an ordinary
ray and an extraordinary ray, which are plane-(linear) polarized in
mutually orthogonal planes, or circular-polarized in opposite directions
(left and right)
• (1) Calcite crystal
In prism you will see, only only refractive ray and in Calcite crystal 2 rat
Quartz
Calcite
Tourmaline
Dichroism
Dichroism
Diffrection of light.ppt.pptx

More Related Content

Similar to Diffrection of light.ppt.pptx

Fluorescence microscopy presentation
Fluorescence microscopy presentationFluorescence microscopy presentation
Fluorescence microscopy presentationMandira bhosale
 
Polarizing Light Microscopy
Polarizing Light MicroscopyPolarizing Light Microscopy
Polarizing Light MicroscopyFARUQ BSMMU R9
 
Bright field microscope
Bright field microscopeBright field microscope
Bright field microscopeirfananabees
 
Confocal microscope presentation pt
Confocal microscope presentation  ptConfocal microscope presentation  pt
Confocal microscope presentation ptShrigouri4605
 
Slit lamp biomicroscopy
Slit lamp biomicroscopySlit lamp biomicroscopy
Slit lamp biomicroscopynafiz mahmood
 
Newer tests for glaucoma
Newer tests for glaucomaNewer tests for glaucoma
Newer tests for glaucomavaishusmail
 
Light microscopy.pptx bright dark phase contrast microscope
Light microscopy.pptx bright dark phase contrast microscopeLight microscopy.pptx bright dark phase contrast microscope
Light microscopy.pptx bright dark phase contrast microscopeDarshanN65
 
Floroscopy new microsoft office powerpoint 97 2003 presentation (2)
Floroscopy new microsoft office powerpoint 97 2003 presentation (2)Floroscopy new microsoft office powerpoint 97 2003 presentation (2)
Floroscopy new microsoft office powerpoint 97 2003 presentation (2)mr_koky
 
Slit lamp examination lecture
Slit lamp examination lectureSlit lamp examination lecture
Slit lamp examination lecturePrashant Patel
 
principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...
principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...
principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...renuka291102
 
Principles, structure and apllications of bright field and dark field microsc...
Principles, structure and apllications of bright field and dark field microsc...Principles, structure and apllications of bright field and dark field microsc...
Principles, structure and apllications of bright field and dark field microsc...selvaraj227
 

Similar to Diffrection of light.ppt.pptx (20)

Microscope
MicroscopeMicroscope
Microscope
 
Fluorescence microscopy presentation
Fluorescence microscopy presentationFluorescence microscopy presentation
Fluorescence microscopy presentation
 
Polarizing Light Microscopy
Polarizing Light MicroscopyPolarizing Light Microscopy
Polarizing Light Microscopy
 
Microscopy
MicroscopyMicroscopy
Microscopy
 
LASER IN OPHTHALMOLOGY
LASER IN OPHTHALMOLOGYLASER IN OPHTHALMOLOGY
LASER IN OPHTHALMOLOGY
 
MICROSCOPY.pptx
MICROSCOPY.pptxMICROSCOPY.pptx
MICROSCOPY.pptx
 
Bright field microscope
Bright field microscopeBright field microscope
Bright field microscope
 
Confocal microscope presentation pt
Confocal microscope presentation  ptConfocal microscope presentation  pt
Confocal microscope presentation pt
 
Microscope 120109025117-phpapp02
Microscope 120109025117-phpapp02Microscope 120109025117-phpapp02
Microscope 120109025117-phpapp02
 
Slit lamp biomicroscopy
Slit lamp biomicroscopySlit lamp biomicroscopy
Slit lamp biomicroscopy
 
Newer tests for glaucoma
Newer tests for glaucomaNewer tests for glaucoma
Newer tests for glaucoma
 
Laser
LaserLaser
Laser
 
Light microscopy.pptx bright dark phase contrast microscope
Light microscopy.pptx bright dark phase contrast microscopeLight microscopy.pptx bright dark phase contrast microscope
Light microscopy.pptx bright dark phase contrast microscope
 
Prabhakar singh ii sem-unit i-microscopy and centrifugation
Prabhakar singh  ii sem-unit i-microscopy and centrifugationPrabhakar singh  ii sem-unit i-microscopy and centrifugation
Prabhakar singh ii sem-unit i-microscopy and centrifugation
 
Floroscopy new microsoft office powerpoint 97 2003 presentation (2)
Floroscopy new microsoft office powerpoint 97 2003 presentation (2)Floroscopy new microsoft office powerpoint 97 2003 presentation (2)
Floroscopy new microsoft office powerpoint 97 2003 presentation (2)
 
Dark room tests in ophthalmology
Dark room tests in ophthalmologyDark room tests in ophthalmology
Dark room tests in ophthalmology
 
Slit lamp examination lecture
Slit lamp examination lectureSlit lamp examination lecture
Slit lamp examination lecture
 
principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...
principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...
principlesstructureandapllicationsofbrightfieldanddarkfieldmicroscopy1-copy-2...
 
Principles, structure and apllications of bright field and dark field microsc...
Principles, structure and apllications of bright field and dark field microsc...Principles, structure and apllications of bright field and dark field microsc...
Principles, structure and apllications of bright field and dark field microsc...
 
Microscope
MicroscopeMicroscope
Microscope
 

More from mahendra singh

AVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTS
AVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTSAVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTS
AVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTSmahendra singh
 
Low Vision Managment, Age Related Macular Degeneration ARMD
Low Vision Managment, Age Related Macular Degeneration ARMDLow Vision Managment, Age Related Macular Degeneration ARMD
Low Vision Managment, Age Related Macular Degeneration ARMDmahendra singh
 
antisuppression exercises.ppt
antisuppression exercises.pptantisuppression exercises.ppt
antisuppression exercises.pptmahendra singh
 
Anomalies Of Convergence
Anomalies Of ConvergenceAnomalies Of Convergence
Anomalies Of Convergencemahendra singh
 
oculocutaneous albinism
oculocutaneous albinismoculocutaneous albinism
oculocutaneous albinismmahendra singh
 
Presentation Retina.pptx
Presentation Retina.pptxPresentation Retina.pptx
Presentation Retina.pptxmahendra singh
 
Presentation Retina.pptx
Presentation Retina.pptxPresentation Retina.pptx
Presentation Retina.pptxmahendra singh
 
antisuppression exercises.ppt
antisuppression exercises.pptantisuppression exercises.ppt
antisuppression exercises.pptmahendra singh
 
Direct & Indirect Ophthalmoloscope.pdf
Direct & Indirect Ophthalmoloscope.pdfDirect & Indirect Ophthalmoloscope.pdf
Direct & Indirect Ophthalmoloscope.pdfmahendra singh
 
MAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptx
MAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptxMAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptx
MAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptxmahendra singh
 
Research Problem ppt.pptx
Research Problem ppt.pptxResearch Problem ppt.pptx
Research Problem ppt.pptxmahendra singh
 
Retinal vein occulision
Retinal vein occulisionRetinal vein occulision
Retinal vein occulisionmahendra singh
 

More from mahendra singh (17)

AVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTS
AVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTSAVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTS
AVAILABLE_COMMUNITY_SERVICES_FOR_LOW_VISION_PATIENTS
 
Low Vision Managment, Age Related Macular Degeneration ARMD
Low Vision Managment, Age Related Macular Degeneration ARMDLow Vision Managment, Age Related Macular Degeneration ARMD
Low Vision Managment, Age Related Macular Degeneration ARMD
 
antisuppression exercises.ppt
antisuppression exercises.pptantisuppression exercises.ppt
antisuppression exercises.ppt
 
Anomalies Of Convergence
Anomalies Of ConvergenceAnomalies Of Convergence
Anomalies Of Convergence
 
Amblyopia.ppt
Amblyopia.pptAmblyopia.ppt
Amblyopia.ppt
 
oculocutaneous albinism
oculocutaneous albinismoculocutaneous albinism
oculocutaneous albinism
 
ageing and eye.ppt
ageing and eye.pptageing and eye.ppt
ageing and eye.ppt
 
AC/A ratio
AC/A ratio AC/A ratio
AC/A ratio
 
Presentation Retina.pptx
Presentation Retina.pptxPresentation Retina.pptx
Presentation Retina.pptx
 
Presentation Retina.pptx
Presentation Retina.pptxPresentation Retina.pptx
Presentation Retina.pptx
 
antisuppression exercises.ppt
antisuppression exercises.pptantisuppression exercises.ppt
antisuppression exercises.ppt
 
Amblyopia.ppt
Amblyopia.pptAmblyopia.ppt
Amblyopia.ppt
 
Direct & Indirect Ophthalmoloscope.pdf
Direct & Indirect Ophthalmoloscope.pdfDirect & Indirect Ophthalmoloscope.pdf
Direct & Indirect Ophthalmoloscope.pdf
 
MAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptx
MAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptxMAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptx
MAHENDRA SINGH FINAL PPT 27TH MARCH 2022.pptx
 
Lensometer.pptx
Lensometer.pptxLensometer.pptx
Lensometer.pptx
 
Research Problem ppt.pptx
Research Problem ppt.pptxResearch Problem ppt.pptx
Research Problem ppt.pptx
 
Retinal vein occulision
Retinal vein occulisionRetinal vein occulision
Retinal vein occulision
 

Recently uploaded

arpita 1-1.pptx management of nursing service and education
arpita 1-1.pptx management of nursing service and educationarpita 1-1.pptx management of nursing service and education
arpita 1-1.pptx management of nursing service and educationNursing education
 
Presentation for Alzheimers Disease.pptx
Presentation for Alzheimers Disease.pptxPresentation for Alzheimers Disease.pptx
Presentation for Alzheimers Disease.pptxravisutar1
 
Lipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptx
Lipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptxLipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptx
Lipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptxRajendra Dev Bhatt
 
Family Adoption Programme first year mbbs.pptx
Family Adoption Programme first year mbbs.pptxFamily Adoption Programme first year mbbs.pptx
Family Adoption Programme first year mbbs.pptxKritikaMishra43
 
Leading big change: what does it take to deliver at large scale?
Leading big change: what does it take to deliver at large scale?Leading big change: what does it take to deliver at large scale?
Leading big change: what does it take to deliver at large scale?HelenBevan4
 
Advance Directives and Advance Care Planning: Ensuring Patient Voices Are Heard
Advance Directives and Advance Care Planning: Ensuring Patient Voices Are HeardAdvance Directives and Advance Care Planning: Ensuring Patient Voices Are Heard
Advance Directives and Advance Care Planning: Ensuring Patient Voices Are HeardVITASAuthor
 
CASE STUDY ON CHRONIC KIDNEY DISEASE.pptx
CASE  STUDY ON CHRONIC KIDNEY DISEASE.pptxCASE  STUDY ON CHRONIC KIDNEY DISEASE.pptx
CASE STUDY ON CHRONIC KIDNEY DISEASE.pptxdrsriram2001
 
Weighing the Risks and Benefits: Angioplasty at Gokuldas Hospitals
Weighing the Risks and Benefits: Angioplasty at Gokuldas HospitalsWeighing the Risks and Benefits: Angioplasty at Gokuldas Hospitals
Weighing the Risks and Benefits: Angioplasty at Gokuldas HospitalsGokuldas Hospital
 
Emergency ambulance portal-PPT-3g2pqy.pptx
Emergency ambulance portal-PPT-3g2pqy.pptxEmergency ambulance portal-PPT-3g2pqy.pptx
Emergency ambulance portal-PPT-3g2pqy.pptxdragonaklevel7
 
Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...
Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...
Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...Oleg Kshivets
 
Immediate care of newborn, midwifery and obstetrical nursing
Immediate care of newborn, midwifery and obstetrical nursingImmediate care of newborn, midwifery and obstetrical nursing
Immediate care of newborn, midwifery and obstetrical nursingNursing education
 
Incentive spirometry powerpoint presentation
Incentive spirometry powerpoint presentationIncentive spirometry powerpoint presentation
Incentive spirometry powerpoint presentationpratiksha ghimire
 
Unlocking the Mysteries of the Lymphatic System
Unlocking the Mysteries of the Lymphatic SystemUnlocking the Mysteries of the Lymphatic System
Unlocking the Mysteries of the Lymphatic SystemSasikiranMarri
 
Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...
Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...
Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...Oleg Kshivets
 
Understanding Cholera: Epidemiology, Prevention, and Control.pdf
Understanding Cholera: Epidemiology, Prevention, and Control.pdfUnderstanding Cholera: Epidemiology, Prevention, and Control.pdf
Understanding Cholera: Epidemiology, Prevention, and Control.pdfSasikiranMarri
 
Mark-Klimek-Lectures-1-To-12 NCLEX EXAMINATION
Mark-Klimek-Lectures-1-To-12 NCLEX EXAMINATIONMark-Klimek-Lectures-1-To-12 NCLEX EXAMINATION
Mark-Klimek-Lectures-1-To-12 NCLEX EXAMINATIONes5735583
 
LABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEM
LABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEMLABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEM
LABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEMRommel Luis III Israel
 
EHR Market Growth is The Boom Over - Jasper Colin
EHR Market Growth is The Boom Over - Jasper ColinEHR Market Growth is The Boom Over - Jasper Colin
EHR Market Growth is The Boom Over - Jasper ColinJasper Colin
 

Recently uploaded (20)

Best Sharjah Spa Jameela Massage Center Sharjah
Best Sharjah Spa Jameela Massage Center SharjahBest Sharjah Spa Jameela Massage Center Sharjah
Best Sharjah Spa Jameela Massage Center Sharjah
 
Check Your own POSTURE & treat yourself.pptx
Check Your own POSTURE & treat yourself.pptxCheck Your own POSTURE & treat yourself.pptx
Check Your own POSTURE & treat yourself.pptx
 
arpita 1-1.pptx management of nursing service and education
arpita 1-1.pptx management of nursing service and educationarpita 1-1.pptx management of nursing service and education
arpita 1-1.pptx management of nursing service and education
 
Presentation for Alzheimers Disease.pptx
Presentation for Alzheimers Disease.pptxPresentation for Alzheimers Disease.pptx
Presentation for Alzheimers Disease.pptx
 
Lipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptx
Lipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptxLipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptx
Lipid Profile test & Cardiac Markers for MBBS, Lab. Med. and Nursing.pptx
 
Family Adoption Programme first year mbbs.pptx
Family Adoption Programme first year mbbs.pptxFamily Adoption Programme first year mbbs.pptx
Family Adoption Programme first year mbbs.pptx
 
Leading big change: what does it take to deliver at large scale?
Leading big change: what does it take to deliver at large scale?Leading big change: what does it take to deliver at large scale?
Leading big change: what does it take to deliver at large scale?
 
Advance Directives and Advance Care Planning: Ensuring Patient Voices Are Heard
Advance Directives and Advance Care Planning: Ensuring Patient Voices Are HeardAdvance Directives and Advance Care Planning: Ensuring Patient Voices Are Heard
Advance Directives and Advance Care Planning: Ensuring Patient Voices Are Heard
 
CASE STUDY ON CHRONIC KIDNEY DISEASE.pptx
CASE  STUDY ON CHRONIC KIDNEY DISEASE.pptxCASE  STUDY ON CHRONIC KIDNEY DISEASE.pptx
CASE STUDY ON CHRONIC KIDNEY DISEASE.pptx
 
Weighing the Risks and Benefits: Angioplasty at Gokuldas Hospitals
Weighing the Risks and Benefits: Angioplasty at Gokuldas HospitalsWeighing the Risks and Benefits: Angioplasty at Gokuldas Hospitals
Weighing the Risks and Benefits: Angioplasty at Gokuldas Hospitals
 
Emergency ambulance portal-PPT-3g2pqy.pptx
Emergency ambulance portal-PPT-3g2pqy.pptxEmergency ambulance portal-PPT-3g2pqy.pptx
Emergency ambulance portal-PPT-3g2pqy.pptx
 
Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...
Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...
Esophageal Cancer: Artificial Intelligence, Synergetics, Complex System Analy...
 
Immediate care of newborn, midwifery and obstetrical nursing
Immediate care of newborn, midwifery and obstetrical nursingImmediate care of newborn, midwifery and obstetrical nursing
Immediate care of newborn, midwifery and obstetrical nursing
 
Incentive spirometry powerpoint presentation
Incentive spirometry powerpoint presentationIncentive spirometry powerpoint presentation
Incentive spirometry powerpoint presentation
 
Unlocking the Mysteries of the Lymphatic System
Unlocking the Mysteries of the Lymphatic SystemUnlocking the Mysteries of the Lymphatic System
Unlocking the Mysteries of the Lymphatic System
 
Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...
Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...
Local Advanced Esophageal Cancer (T3-4N0-2M0): Artificial Intelligence, Syner...
 
Understanding Cholera: Epidemiology, Prevention, and Control.pdf
Understanding Cholera: Epidemiology, Prevention, and Control.pdfUnderstanding Cholera: Epidemiology, Prevention, and Control.pdf
Understanding Cholera: Epidemiology, Prevention, and Control.pdf
 
Mark-Klimek-Lectures-1-To-12 NCLEX EXAMINATION
Mark-Klimek-Lectures-1-To-12 NCLEX EXAMINATIONMark-Klimek-Lectures-1-To-12 NCLEX EXAMINATION
Mark-Klimek-Lectures-1-To-12 NCLEX EXAMINATION
 
LABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEM
LABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEMLABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEM
LABORATORY PROCEDURES-ALTERATION IN THE ENDOCRINE SYSTEM
 
EHR Market Growth is The Boom Over - Jasper Colin
EHR Market Growth is The Boom Over - Jasper ColinEHR Market Growth is The Boom Over - Jasper Colin
EHR Market Growth is The Boom Over - Jasper Colin
 

Diffrection of light.ppt.pptx

  • 1.
  • 4.
  • 5.
  • 6. USE • Vision • Pupil Size • Pin hole • ‘ring’ of light that encircles the sun • LIT. ROOM • SOUND
  • 7. Polarization • Polarization, in Physics, is defined as a phenomenon caused due to the wave nature of electromagnetic radiation. • Unpolarized light is a haphazard mixture of polarized beams of light directed in various planes. A mixture of polarized light and unpolarized light is termed unpolarized light.
  • 8.
  • 9.
  • 10.
  • 12. Application • Ophthalmic instrument (e.g Slit lamp) • Polarizing Projection charts • Three-dimensional picture • Polaroid sunglasses • Titmus fly test • RNFL layer thickness • Detection of defects in the intra-ocular lenses may be done by using the principle of Birefringence
  • 14.
  • 16. • Fluoresceine dye when exposed to light by a fundus camera, then unbound fluorescein absorbs light of a wavelength in the range of – 465-495 nm. Which is a bluish region • Clinical applications: • Fluoreceine angiography is used in performing fundus angiography and various other angiography done for diagnosing ocular, cardiac, cerebral, and liver conditions.
  • 17. Double Refraction (Birefringence) 1969 (Erasmus barthulinus) • Birefringence is the phenomenon exhibited by certain materials in which an incident ray of light is split into two rays, called an ordinary ray and an extraordinary ray, which are plane-(linear) polarized in mutually orthogonal planes, or circular-polarized in opposite directions (left and right) • (1) Calcite crystal In prism you will see, only only refractive ray and in Calcite crystal 2 rat
  • 19.
  • 20.
  • 21.