Pinhole Imaging Convex Lens Imaging Optical Bench F-Type Light Source

Model: YZQ-PHE001
1. Material: Metal Plastic
2. Size: 10*55*12.5CM
3. How to use the optical stand
1. Adjust the object distance to be greater than twice the focal length, then move the light screen to explore the image size and properties.
2. Adjust the object distance to be greater than the focal length experiment and less than twice the focal length experiment to explore the imaging situation.
3. Adjust the object distance to be less than the focal length, move the light screen to observe whether there is an image. Convex lens parameters: 3cm focal length 5cm / 4cm focal length 10cm / 5cm focal length 15cm
Concave lens parameters: 3cm focal length -7.5cm / 4cm focal length -10cm / 5cm focal length 10cm