A magnifying glass is a convex lens used to make an object appear much larger than it actually is.
This works when the object is placed at a distance from the lens of less than one focal length. The image is:
Only the person looking through the magnifying glass can see the image.
The image cannot be projected onto a screen because it is a virtual image.
The table below summarises the nature of the images produced by a converging lens.
|Distance of object||Size||Orientation||Type||Position||Application|
|Further than 2F||Diminished||Inverted||Real||Between 2F and F||The eye or camera|
|Between 2F and F||Enlarged||Inverted||Real||Further than 2F||Cinema projector|
|F||No image because the emerging rays are parallel to the axis||Searchlight. Or follow spot in the theatre|
|Closer than F||Enlarged||Upright||Virtual||Same side as object but further away||Magnifying glass|