Lensmaker Equation is used to determine whether a lens will behave as a converging or diverging lens based on the curvature of its faces and the relative indices of the lens material and the surrounding medium. This equation is used for determining the focal length of a thin lens (thickness = 0) with radii of curvature r1 and r2.

Telecentricsystem

High-precision imaging: The edge imaging of the telecentric lens will not bend. Even at the edge of the lens, the lines still maintain the same intersection angle with the central axis of the lens, so high-precision images can be taken.

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What is atelecentriclens

In fields such as computer vision that require image processing, telecentric lenses are widely used because of their high-precision imaging effects, which make image processing more precise.

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The characteristic is that it can represent distant objects larger than their actual size, so it can capture distant scenery or objects more clearly and in detail.

Telecentriclens vs normal lens

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f = Focal Point nl = Refractive Index of Lens Material nm = Refractive Index of Ambient Medium r1 = Radius of Curvature of the First Surface r2 = Radius of Curvature of the Second Surface P = Lens Power

The working principle of a telecentric lens is to use its special structure to disperse light evenly and project the image onto a sensor or film. This feature allows it to achieve better imaging results when shooting scenes far away from the subject. So, what are the characteristics of telecentric lenses?

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In addition, due to the long focal length of telecentric lenses, they can achieve background blur and shallow depth of field, making the subject more prominent when shooting, so they are also widely used in portrait photography.

In aircraft photography and telephoto photography, telecentric lenses can capture images with strong three-dimensionality and high precision, and are widely used.

The focal length of a lens in air can be calculated from the lensmaker's equation. For a thin lens, the power is approximately the sum of the surface powers. There are basically four factors that determine the focal length of a lens: the index of refraction of the lens, the index of refraction of the medium which forms the environment of the lens, the radius of the front surface of the lens, and the radius of the back surface of the lens. The equation that relates these quantities to the focal length of the lens is called the lensmaker's equation, since it gives the focal length in terms of quantities involved in the manufacture of the lens. Lensmaker Equation is used to make Lenses.

TelecentricLens price

Telecentric lens is a type of optical lens, also known as television lens, or a telephoto lens. Through special lens design, its focal length is relatively long, and the physical length of the lens is usually smaller than the focal length.

In some professional photography, telecentric lenses are often used, such as architectural photography, product photography, etc.

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Strong three-dimensional sense: Because of the orthogonal projection, the telecentric lens can maintain the proportional relationship of space, making the captured images have a strong three-dimensional sense.

Telecentric lenses are widely used in scenes such as sports events, wildlife and nature photography, and astronomical observations, because these scenes often require shooting or observing objects from a long distance. Telecentric lenses can bring distant objects “closer” while maintaining the clarity and detail of the picture.

Parallel lines: Due to the special internal optical structure, the telecentric lens can keep the light entering the lens parallel at all positions, which means that the image lines captured by the lens will remain straight without bending or deformation.

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