Figure 9-2 Molecular Biology of the Cell (© Garland Science 2008)

Slides:

Advertisements

Similar presentations

Cutnell/Johnson Physics 7th edition

Advertisements

1 From Last Time… Lenses and image formation Object Image Lens Object Image Thurs. Sep. 17, 2009Physics 208, Lecture 5.

and Optical Instruments

Example A 2.0 cm high object is placed 5 cm in front of a +10 cm focal length lens. Where is the object located? Is it real or virtual? Find the height.

Image Formation 2 Thin Lens Multi lens/mirror system

Ch. 18 Mirrors and Lenses Milbank High School. Sec Mirrors Objectives –Explain how concave, convex, and plane mirrors form images. –Locate images.

Locate the image in a Converging Lens when the object is beyond C 2FF PA S: Smaller, Same Size or Larger A: Inverted or Upright L: Behind or In-Front T:

Physics 1502: Lecture 30 Today’s Agenda Announcements: –Midterm 2: Monday Nov. 16 … –Homework 08: due Friday Optics –Mirrors –Lenses –Eye.

Lenses Physics 202 Professor Lee Carkner Lecture 21.

PH 103 Dr. Cecilia Vogel Lecture 9. Review Outline  Multiple Lenses  application to microscope  and telescope  Lenses  more corrective lenses  application.

Photgraphic camera. How it works? Take a simple converging lens: Object – usually at a distance much, much larger from the lens than its focal length Lens.

Lenses Physics 202 Professor Lee Carkner Lecture 23.

Lenses Physics 202 Professor Lee Carkner Lecture 23.

Abigail Lee. Lenses refract light in such a way that an image of the light source is formed. With a converging lens, paraxial rays that are parallel to.

Introduction to Microscopy. Objectives Learn to use a compound microscope correctly. Diagram the path of light through a compound microscope. Name major.

A. can be focused on a screen. B. can be projected on a wall.

Lenses Chapter 30.

Textbook sections 26-3 & 26-4 Physics 1161: Lecture 21 Curved Mirrors.

Chapter 34 Lecture Eight: Images: II. Image Formed by a Thin Lens A thin lens is one whose thickness is small compared to the radii of curvature For a.

Telescopes and Microscopes. Question: When you look through the converging eyepiece of a telescope, you see an enlarged image of a distant object. If.

ReflectionReflection and Mirrors The Law of Reflection always applies: “The angle of reflection is equal to the angle of incidence.”

Microscope Vocabulary Terms

Textbook sections 26-3 – 26-5, 26-8 Physics 1161: Lecture 17 Reflection & Refraction.

Ray Diagrams for Lenses. Convex (Converging) Lenses There are two Focal points One in Front and one Behind Focal point is ½ way between Center of Curvature.

Physics 1202: Lecture 23 Today’s Agenda Announcements: –Lectures posted on: –HW assignments, etc.

Lens Application Camera Movie Projector Magnifying Glass

Physics 1202: Lecture 22 Today’s Agenda Announcements: –Lectures posted on: –HW assignments, etc.

ReflectionReflection and Mirrors The Law of Reflection always applies: “The angle of reflection is equal to the angle of incidence.”

OPTICAL INSTRUMENTS PRESENTED BY: 1. ANA ALINA 2. FIRDIANA SANJAYA.

Mirrors. Types of mirror There are two types of mirror Plane (flat) Curved Concave (curves in) Convex (curves out)

 Imagine a clear evening when a full moon is just starting to rise. Even though the Moon might seem large and close, it is still too far away for you.

Thin Lenses.  When light passes through a lens, it refracts twice ◦ Once upon entering the lens and once upon leaving  Exiting ray is parallel to the.

Spherical Mirrors.

Lenses – An application of refraction

Chapter 33 Lenses and Optical Instruments

Thin Lenses – Ray Tracing

L 32 Light and Optics [3] images formed by mirrors

RAY DIAGRAMS FOR MIRRORS

Chapter 24: Optical Instruments

Optical Instruments Or Seeing is Believing.

Refraction and Lenses AP Physics B.

What have these all got in common?

How do different lenses affect the image we see.

5) Magnifying glass (Simple magnifier)

L 31 Light and Optics-3 Images formed by mirrors

Reflection and refraction

Lenses and Ray Diagrams

Images formed by Mirrors

The Refracting Telescope

17.2 Mirrors, Lenses, and Images

Reflection of Light from Spherical Mirrors

Millions of light rays reflect from objects and enter our eyes – that’s how we see them! When we study the formation of images, we will isolate just a.

Convex and Concave Lenses

Mirrors and Lenses A mirror is a sheet of glass that has a smooth, silver-colored coating on one side. When light passes through the glass, the coating.

Geometrical Optics Seminar add-on Ing. Jaroslav Jíra, CSc.

Science 8 – Mirrors and Lenses ANSWERS

L 31 Light and Optics-3 Images formed by mirrors

Lenses A lens is a transparent material (with at least one curved side) that causes light refracts in a predictable and useful way. Each ray is refracted.

Refraction Thin Lenses.

What is a lens? A transparent object that refracts light rays, causing them to converge or diverge to create an image.

Lenses: Day 1 -Converging Lenses

The Simple Astronomical Telescope

Lens Cases CONVERGING 2f f f’ 2f’ – object beyond 2f

Presentation transcript:

Figure 9-2 Molecular Biology of the Cell (© Garland Science 2008)

Object is very far away Image at focal plane Image is smaller Real image Captured on film Camera – scenic photography Image at focal plane Image is smaller Image is inverted Image is real

Object is closer but greater than 2 focal lengths Portrait photography Image further behind the lens Image is larger than previous but smaller than object Image is inverted Image is real

Object is at 2 focal lengths Image is 2x focal lengths behind the lens Image is the same size as the object Image is inverted Image is real

Object is between 2x and 1x focal lengths This describes the finite tube length objectives Image is even further back behind the lens Image is magnified Image is inverted Image is real

Object at front focal plane (with eyepiece) The last case listed above describes the functioning of the observation eyepiece of the microscope. The "object" examined by the eyepiece is the magnified, inverted, real image projected by the objective. When the human eye is placed above the eyepiece, the lens and cornea of the eye "look" at this secondarily magnified virtual image and see this virtual image as if it were 10 inches from the eye, near the base of the microscope. Rays emerge the lens in parallel Image is on the same side of the lens Image is upright Image is virtual

What is the total magnification?

Resolution Chuck Close: Cindy, 1988 Self Portrait/Woodcut, 2002

Abbe and the Resolution Limit d: resolution λ: wavelength n.sinα: numerical aperture of objective Ernst Abbe (1850-1905)

Part of opening angle wasted Add Immersion Oil Part of opening angle wasted Objective Light can not escape cover slip Add immersion oil Cover slip Sample Slide