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What lens material was used for AMO SI40NB?
silicone
What determines the focal length of two sides of a lens?
Their radii of curvature and the refractive index of the material of the lens.
Can a convex lens behave as a concave lens?
yes...when the lens is immersed in a liquid whose refractive index is greater than that of the material of the lens, for example, an air bubble inside water....
When does convex lens behave as diverging lens?
When it is immersed into the liquid of refractive index greater than to that of the lens material.
A piece of clear material that is thicker in the middle that the edges?
A Convex Lens
What is spectacle lens?
A spectacle lens is a lens worn in front of the eye, mainly used to correctmyopia, hyperopia,astigmatism.
What is spectacles?
A spectacle lens is a lens worn in front of the eye, mainly used to correctmyopia, hyperopia,astigmatism.
How do you spell specticel?
The correct spelling is spectacle (a viewed event, or a lens as in spectacles, or eyeglasses)
What are some examples of surface defects in spectacle lenses?
* Cracks * Scratches * Peeling (if there is a coating on the lens)
What is a standard lens notation RE Spectacle lenses?
In the US, spectacle lens prescriptions will generally follow the following format: Right Lens Sphere Power - Right Lens Cylinder Value - Right Lens Cylinder Axis Left Lens Sphere Power - Left Lens Cylinder Value - Left Lens Cylinder Axis Reading Addition Power Other information may also be included on the written prescription, but the necessary information listed above will always be included in the format indicated.
Carl Zeiss spectacle lens approximate price in India?
Approximately in the range 4800-10,000 Rupees
Who invention the compound microscope?
Zacharias Janssen and his son Johannes (Hans), spectacle makers in Holland, are usually credited with inventing the first compound microscope in about 1595. (Hans Lippershey a spectacle maker in the same city, Middelburg, Netherlands, also claimed credit for the invention but was perhaps more instrumental in the creation of the telescope.)Two decades later, Galileo Galilei built a compound microscope and changed the lens design lens (convex and concave lens).Galileo
Where was the compound microscope invented?
Zacharias Janssen and his son Johannes (Hans), spectacle makers in Holland, are usually credited with inventing the first compound microscope in about 1590. (Hans Lippershey a spectacle maker in the same city, Middelburg, Netherlands, also claimed credit for the invention but was perhaps more instrumental in the creation of the telescope.) Two decades later, Galileo Galilei built a compound microscope and changed the lens design lens (convex and concave lens).
When was the compound microscope invented?
Zacharias Janssen and his son Johannes (Hans), spectacle makers in Holland, are usually credited with inventing the first compound microscope in about 1590. (Hans Lippershey a spectacle maker in the same city, Middelburg, Netherlands, also claimed credit for the invention but was perhaps more instrumental in the creation of the telescope.) Two decades later, Galileo Galilei built a compound microscope and changed the lens design lens (convex and concave lens).
Who invented compounded microscope?
Zacharias Janssen and his son Johannes (Hans), spectacle makers in Holland, are usually credited with inventing the first compound microscope in about 1595. (Hans Lippershey a spectacle maker in the same city, Middelburg, Netherlands, also claimed credit for the invention but was perhaps more instrumental in the creation of the telescope.)Two decades later, Galileo Galilei built a compound microscope and changed the lens design lens (convex and concave lens).Galileo
What two factors determine the type of image formed by lens?
The focal length of the lens and the distance between the lens and the object.
What lens material was used for AMO SI40NB?
silicone
