Most diamonds mined -- about 80% -- are industrial diamonds, and the application you're describing may be an industrial application. These diamonds are at least cloudy, opaque and not clear.
A gem-quality diamond could be fashioned into the focal object you require, depending on the size of the object you need. Remember that about 65% of any raw stone is lost in cutting, and most diamonds found are about as large as an edible pea.
Yes, a concave mirror can focus light. When light rays reflect off a concave mirror, they can come together at a single point known as the focal point. This can create a focused image.
Focus or the focal point.
A converging lens focuses light rays to a single point inside its focal point by refracting the light rays as they pass through the lens. The lens is curved in a way that causes the light rays to converge towards a focal point, where they meet and form a clear image.
Convex lenses focus light by bending the light rays towards a single point called the focal point. This causes the light rays to converge and form a real image or a virtual image, depending on the position of the object. The shape of the lens causes the light to refract in a way that brings the rays together at the focal point.
Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens. The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina.
Convex lenses, also known as converging lenses, focus light rays by bending them inward towards a single point called the focal point. This results in the formation of a real image on the opposite side of the lens.
A converging lens can cause a beam of light to focus or come together at a specific point called the focal point. This lens is thicker in the middle than at the edges, allowing it to refract light rays in a way that brings them to a single point.
Convex lenses focus parallel light rays from distant sources such as the sun to a single point on the principal axis of the lens. This point is called the principal focus of the convex lens. A source such as the sun is producing enough energy to heat a substance if it is placed at the principal focus point.
A converging beam of light is when multiple rays of light are directed towards a single point, bringing them closer together as they travel. This results in the rays of light eventually meeting at a single focal point, creating a concentrated beam of light. This phenomenon is commonly seen in lenses and mirrors that are designed to focus light to produce clear images or intensify light output.
A light-half, I believe.
A lens focuses light by bending and refracting it, bringing the rays together at a single point called the focal point. This process creates a clear and sharp image by ensuring that light rays from each point on the object converge at the corresponding point on the image.
A lens is used to bring an object into focus. The shape of the lens helps to bend light rays in such a way that they converge at a single point, resulting in a clear image.