Introductory-level optical system that explains how rays emitted from the light source are converged onto the slide form image on the screen after passing through the lens at a certain focal distance.
【Overall Advantages to Users】
- Specialized in measuring focal distance of the image projected through a double-convex lens and magnified on the screen.
- Portable apparatus with a battery powered LED light source.
- Better storage and portability because all the components can be stored in a Gratnells’ case that comes with the product.
- Equipped with four types of color filter slides with different graphics that provide better visibility of the image that is horizontally and vertically reversed when projected on the screen through a double-convex lens.
- Double-convex lens
- Virtual image
- Real image
- Focal length