Utilization of Light Properties

Objects that utilizes the properties of light are called optical instruments. Optical devices such as magnifying glass, cameras, microscopes, binoculars, and OHP. What are the usefulness of optical instruments such? Consider the following explanation!

1. magnifying glass

Lup is a magnifying glass. Loop consists of a convex lens. Small objects will look great when viewed with a magnifying glass. You can make a simple loop.

2. camera

The camera is an optical instrument that records the shadow of the object. The camera is used to photograph objects up close. However, the camera with lens distance photos, can capture objects located so far.

How does the camera work? The camera has a convex lens. When we took a photo of an object, the object lens cast a shadow on the film. The shadow is real and inverted. Furthermore, the film is released from the camera. The film brought to the photo shop to be processed and printed on photo paper.

How to make a sharp image formed? When photographing, we have to adjust the lens. The lens can be brought forward or pushed back with a regulator. In automatic cameras, the location of the lens is set automatically.

3. microscope

Object optical microscope is used to view very small objects (not visible). For example, bacteria, fungi, or other microscopic objects.

4. Overhead Projector (OHP)

Overhead Projector is a device for projecting images or text on the screen. How does the OHP? Wishing projected image must be photocopied onto plastic transparencies used. Plastics contain images placed on the glass. Then, transparencies lit from below. Rays transmitted to the projector head. Well, head projector will form a shadow on the screen.

5. periscope

Periscope telescope with a mirror is flat. Used on a submarine periscope to see objects on the surface of the water.