Roger Bacon is credited with experiments on lenses and mirrors in the 13th century. The magnifying glass was first mentioned in 1268 and used as primitive eyeglasses. It uses a convex lens to converge light rays and produce a virtual, upright and magnified image. Magnifying glasses are used to read small print, inspect small components, and examine microscopic specimens in scientific research.

1. Magnifying
Glass

2. History of Magnifying Glass/Lens
 Roger Bacon, was a
philosopher who conducted a
wide range of experiments
with lenses and mirrors.
 it was built in the 1250s.
 Its use is first mentioned in
1268, when the magnifying
lens was adapted to be used
as primitive eyeglasses.

3. Magnifying Glass
 also known as a hand
lens
 a specially shaped piece
of glass that is attached
to a handle and is used
to make an object look
larger than it is.

4. Magnifying
Glass/Lens
 A magnifying glass uses a
convex lens because these
lenses cause light rays to
converge, or come together.
 The image made by a
magnifying glass is virtual,
upright and bigger than
the object.

5. Ray Diagram of Magnifying Glass/Lens

6. Applications of Magnifying Glass/Lens
 Reading - used by
individuals with
visual impairments to
read small print in
books, newspapers,
and documents.

7. Applications of Magnifying Glass/Lens
 Inspection - they are
used in industries such
as electronics, jewelry,
and watchmaking to
inspect small
components and detect
flaws or defects.

8. Applications of Magnifying Glass/Lens
 Scientific Research:
Scientists and
researchers use
magnifying glasses to
examine microscopic
organisms, specimens,
and structures in
laboratories.

9. Conclusio
n
 The magnifying is a
versatile and essential
tool that has been used
for centuries to magnify
and examine objects
and images.

10. Thank you!