it depends what instument's your talking about :/
Plane mirrors are used in periscopes to enable viewing around obstacles, in optical instruments like microscopes and telescopes to direct and reflect light, and in security systems to monitor areas without being detected. They are also used in architecture and interior design to enhance lighting and create an illusion of more space.
An optical axis is a line along which there is some degree of rotational symmetry in an optical system such as a camera lens or microscope..
The optical axis is an imaginary line that passes through the center of a lens or mirror, while the visual axis is the line connecting the fovea (center of the retina) to the object being viewed. The optical axis is used in optics to describe the path of light through a lens system, while the visual axis describes the line of sight in relation to the eye.
The distance along the optical axis refers to the linear measurement from one point to another along the axis of a lens or optical system, typically measured in millimeters or centimeters. This axis is an imaginary line that passes through the center of the lens and extends in both directions. It is crucial for understanding focal lengths, image formation, and the overall behavior of light as it passes through optical elements. In practical applications, this distance helps in aligning optical components for optimal performance.
Plane mirrors are used to reflect light. They are commonly found in bathrooms, dressing tables, and on vehicles as side mirrors. They are also used in optical instruments like periscopes and kaleidoscopes.
Plane mirrors have a flat reflecting surface, while curved mirrors have a reflecting surface that is curved either inward (concave) or outward (convex). Curved mirrors can focus or diverge light rays depending on their shape, resulting in different optical properties compared to plane mirrors. Additionally, curved mirrors have a focal point and focal length, which plane mirrors do not possess.
optical axis
he points on the optical axis of a centered optical system that can be used to construct the image of an arbitrary point in space for objects in the paraxial region, which is the region around the axis of symmetry of the system where a point is represented by a point, a straight line by a straight line, and a plane by a plane.
The points on the optical axis OO' (see Figure 1) of a centered optical system that can be used to construct the image of an arbitrary point in space for objects in the paraxial region, which is the region around the axis of symmetry of the system where a point is represented by a point, a straight line by a straight line, and a plane by a plane.
it depends what instument's your talking about :/
The point at which rays parallel to the optical axis reflect and meet is called the focus of a mirror. In the context of concave mirrors, this point is where light rays converge after reflection. For convex mirrors, the focus is virtual, appearing to be located behind the mirror. The distance from the mirror's surface to the focus is known as the focal length.
optical axis
concave mirrors, and curved mirrors
x axis is on horizontal plane and y axis is on vertical plane.
Plane mirrors are used in periscopes to enable viewing around obstacles, in optical instruments like microscopes and telescopes to direct and reflect light, and in security systems to monitor areas without being detected. They are also used in architecture and interior design to enhance lighting and create an illusion of more space.
we use plane mirrors in our homes everyday, like dressing table mirrors, cupboard mirrors, etc.