1 / 10

RAY DIAGRAMS FOR LENSES

RAY DIAGRAMS FOR LENSES. CONVEX (CONVERGING) LENS. All ray diagrams start with a center line and the lens. Note: the lens can be simplified into a straight vertical line. C. F. F. Next, put in the focal points (F) -- Note: for lenses there are 2 focal points.

mmachado
Download Presentation

RAY DIAGRAMS FOR LENSES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RAY DIAGRAMS FOR LENSES

  2. CONVEX (CONVERGING) LENS All ray diagrams start with a center line and the lens Note: the lens can be simplified into a straight vertical line

  3. C F F Next, put in the focal points (F) -- Note: for lenses there are 2 focal points. The center is located where the lens intersects the center line Next, put in the object as described in the problem.

  4. F F You can get 3 types of images from a convex (converging) lens. The type of image is determined by the object distance. do > 2 f IMAGE = real, inverted, smaller F F 2 f > do > f IMAGE = real, inverted, bigger do < f IMAGE = virtual, upright, bigger F F

  5. F F RAY DIAGRAM: do > 2 f - draw a ray parallel to the center line to the lens THEN through oppositeF - draw a ray through nearF to the lens THEN parallel to the center line - draw a ray through C The point where the refracted rays intersect is where the image will be formed

  6. F F RAY DIAGRAM: 2f > do > f - draw a ray parallel to the center line to the lens THEN through oppositeF - draw a ray through nearF to the lens THEN parallel to the center line - draw a ray through C

  7. F F RAY DIAGRAM: do < f - draw a ray parallel to the center line to the lens THEN through oppositeF - draw a ray in line with nearF to the lens THEN parallel to the center line - draw a ray through C Refracted rays do not meet in “real” space. Draw dotted lines back from refracted rays so that they intersect behind the lens

  8. CONCAVE (DIVERGING) LENS All ray diagrams start with a center line and the lens Note: the lens can be simplified into a straight vertical line

  9. C F F Next, put in the focal points (F) -- Note: for lenses there are 2 focal points. The center is located where the lens intersects the center line Next, put in the object as described in the problem.

  10. F F You can only get 1 type of image from a concave (diverging) lens: virtual, upright, smaller - draw a ray parallel to the center line to the lens THEN in line with near F - draw a ray in line with oppositeF to the lens THEN parallel to the center line - draw a ray through C Refracted rays do not meet in “real” space. Draw dotted lines back from refracted rays so that they intersect behind the lens.

More Related