Is a Handheld magnifier or Stand magnifier known as a Collimating magnifier?

Is a Handheld magnifier or Stand magnifier known as a Collimating magnifier?

• A. Handheld magnifier
• B. Stand magnifier
• C. Both
• D. Neither

Answer: (A)

A collimating magnifier works by the lens projecting a magnified image that appears at infinity, which lets the eye focus with relaxed accommodation. The handheld magnifier is the classic example of this: you hold the lens at about its focal length from the object, producing a magnified virtual image that the eye can view from a comfortable distance as if it were at infinity. Stand magnifiers are built for a fixed near viewing distance and don’t typically produce an image at infinity in everyday use, so they aren’t typically labeled as collimating. So the handheld magnifier best fits the description.

A collimating magnifier works by the lens projecting a magnified image that appears at infinity, which lets the eye focus with relaxed accommodation. The handheld magnifier is the classic example of this: you hold the lens at about its focal length from the object, producing a magnified virtual image that the eye can view from a comfortable distance as if it were at infinity. Stand magnifiers are built for a fixed near viewing distance and don’t typically produce an image at infinity in everyday use, so they aren’t typically labeled as collimating. So the handheld magnifier best fits the description.