What is a wall washer lens?
2021-06-26(596)Views
What is a wall washer lens? We are not unfamiliar with the lamp. In fact, the luminous body of the lamp is a small chip, which we call a semiconductor material chip. The current high brightness and low power consumption belong to LED lamps and car headlights. , Industrial and mining lamps, and medical equipment lamps all use LED lamps, but there are many disadvantages if LEDs are used alone, so they need to be used in conjunction with lenses. Let me explain what a lens is.
The wall washer is derived from the English wash wall, and translated into Chinese it becomes the wall washer. Wall washers are also called linear floodlights, etc., because their shape is a long strip, and some people call them linear lights. They are mainly used for architectural decoration lighting and also used to outline the outline of large buildings. Its technical parameters are roughly similar to those of the floodlight. Compared with the round structure of the floodlight, the strip-shaped heat sink of the wall washer is a bit easier to handle.
lenses are divided into convex lenses and concave lenses. The imaging law of the convex lens is: the object is placed out of the focus, and the real image is inverted on the other side of the convex lens. The real image has three types: reduction, equal size, and enlargement. A lens is an optical element made of a transparent material whose surface is a part of a spherical surface. The lens is composed of several lenses, including a plastic lens (plastic) and a glass lens (glass). Generally, the lenses used for lamps are used for magnifying light source and tangent.
The principle of the wall washer lens
Lens is the most basic optical element that composes the microscope optical system. The objective lens, eyepiece and condenser are all composed of single and multiple lenses. According to their different shapes, they can be divided into two categories: convex lens (positive lens) and concave lens (negative lens). When a beam of light parallel to the main optical axis passes through the convex lens and intersects at a point, this point is called the "focus", and the plane passing through the focus and perpendicular to the optical axis is called the "focal plane". There are two focal points. The focal point in the object space is called the "object focal point", and the focal plane there is called the "object focal plane"; conversely, the focal point in the image space is called the "image focal point". The focal plane at the position is called the "image square focal plane". After the light passes through the concave lens, it becomes an erect virtual image, and the convex lens becomes an inverted real image. The real image can be displayed on the screen, but the virtual image cannot.
1. Because the lens has a strong light-gathering ability, it is used to illuminate, not only bright, but also clear, and the illuminated object can be clearly seen.
2. Since the light dispersion is very small, its light range is far and clearer than ordinary lights. Therefore, you can see things in the distance, which is convenient for work.
3. The wall washer lens is controlled by the built-in microchip. In small-scale engineering applications, it can be used without a controller. It can achieve dynamic effects such as gradation, jump, color flashing, random flashing, and gradual alternation. It can also be used by DMX Control to achieve effects such as chasing and scanning.
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