- A
magnifying gl**** is a
convex lens that is used to
produce a
magnified image of an object. The
lens is
usually mounted in a
frame with a handle. Beyond...
-
compound lens consists of
several simple lenses (elements),
usually arranged along a
common axis.
Lenses are made from
materials such as
gl**** or plastic...
-
activating light, the
lenses return to
their clear state.
Photochromic lenses may be made of polycarbonate,
or another plastic.
Gl**** lenses use
visible light...
-
gl**** refers to a
quality of
gl**** suitable for the
manufacture of
optical systems such as
optical lenses,
prisms or mirrors.
Unlike window gl**** or crystal...
- A
camera lens (also
known as
photographic lens or photographic objective) is an
optical lens or ****embly of
lenses used in
conjunction with a
camera body...
- astigmatism, and presbyopia. Gl****es
or "spectacles" are worn on the face a
short distance in
front of the eye.
Contact lenses are worn
directly on the surface...
-
objective itself is
usually a
cylinder containing one
or more
lenses that are
typically made of
gl****; its
function is to
collect light from the sample....
- A
Fresnel lens (/ˈfreɪnɛl, -nəl/ FRAY-nel, -nəl; /ˈfrɛnɛl, -əl/ FREN-el, -əl;
or /freɪˈnɛl/ fray-NEL) is a type of
composite compact lens which reduces...
- An
achromatic lens or achromat is a
lens that is
designed to
limit the
effects of
chromatic and
spherical aberration.
Achromatic lenses are corrected...
- A
burning gl**** or burning lens is a
large convex lens that can
concentrate the sun's rays onto a
small area,
heating up the area and thus
resulting in...
