Optical Lens Manufacturer: Imaging Principles of Optical Lenses

Release Date:

2020-05-12 15:14

Source:

www.yisitelens.com

The imaging principles of optical lenses. DONGGUAN YISITEGUANGDIANKEJI CO., LTD is located in Chang’an, Dongguan. Established in August 2012, the company specializes in the R&D, design, manufacturing, supply, and sales of LED lenses and optical lenses. Its main product lines include optical lenses, spotlight lenses, streetlight lenses, indoor LED lenses, LED stage lights, LED streetlights, LED spotlights, LED lenses, backlight sources, and plastic molds. All products strictly comply with ROHS environmental standards and the ISO 9001:2008 quality management system.

    Optical lens Imaging principles of
1. A lens is represented by a lens symbol (a line segment with two V-shaped marks at its ends). Draw the principal optical axis, mark the optical center and the focal points, and determine the characteristics of the image formed by the lens (such as whether it is virtual or real, its size, and its orientation—upright or inverted). The image position can be found at the intersection of two of the three special rays: the ray passing through the optical center and the ray parallel to the principal optical axis, which are typically easier to draw.
2. When a lens forms an image, all the light rays emanating from each point on the object converge to form an image at the same location, blocking some of the light while leaving the imaging of the remaining rays unaffected. As a result, the full image remains visible; however, as the amount of light reaching the image decreases, the brightness of the image on the screen diminishes.

The imaging principle of optical lenses


3. The law of image formation by a convex lens;
(1) A condition that must be met for a convex lens to form a real image is
(2) Conjugate imaging refers to the situation where object distance and image distance can be interchanged; in both cases, the inverted real image can be magnified or reduced, respectively.
4. When observing a clock at a distance greater than twice the focal length through a convex lens, the second hand still rotates clockwise, because the inverted real image continues to appear to rotate clockwise when viewed from behind.
The lens is represented by a lens symbol (with two V-shaped marks at the ends of a line segment). Draw the principal optical axis, mark the optical center and the focal points, and determine the characteristics of the image formed by the lens (such as whether it is virtual or real, its size, and whether it is upright or inverted). The image position can be found at the intersection of two of the three special rays—specifically, the ray passing through the optical center and the ray parallel to the principal optical axis.
5. When a lens forms an image, all the light rays emitted from each point on the object converge at the same location to form the image, blocking some of the light while leaving the imaging of the remaining rays unaffected. As a result, the full image remains visible; however, as the amount of light reaching the image decreases, the brightness of the image on the screen diminishes.

Keywords:

Optical lens manufacturer, principles of optical lens imaging

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