They are also named desktop magnifying glass, or desktop magnifier with lamp, it is a magnifier shaped like a table lamp. There are two kinds: desktop magnifier with lamp is a desktop magnifier with complete functions. Those without lamp but shaped like a table lamp can also be called desktop magnifier.
The desktop magnifier with lamp generally has the following characteristics:
1. There are two placement methods: one is placed on the desktop, and the other is clamped on the edge of the table;
2. Double combination of magnification and lighting, and the magnification can be selected according to different requirements;
3. The light is stable and reliable, without flicker, and has no effect on vision;
4. Advanced white lenses can be configured to reduce visual fatigue caused by long-term use;
5. The lens area is relatively large, the field of vision is relatively wide, and the transmittance is higher than that of ordinary magnifying glass;
6. A handle (or neck) with multiple sections that can be retracted or rotated to freely adjust the direction and angle position of the magnifying glass in a large range.
7. Generally speaking, the use of a desktop magnifier with a lamp can eliminate the need for other types of magnifiers such as clip magnifiers and hand-held magnifiers.
Subject to the optical principle and other factors, the magnification of the magnifying glass is generally inversely proportional to the lens area. The larger the mirror area, the smaller the multiple. The most common lens diameter or size of the bench lamp magnifier series is more than 100mm (the largest has 220mm diameter). Therefore, the magnification of the bench lamp magnifier is bound to be not much larger. It is impossible that the size range should be more than 10 times the magnification.
Therefore, the table magnifier with lamp can not replace the high-power magnifier. If the object you need to observe needs to be magnified many times, the desktop magnifying glass can not fully meet you, so you need other series of handheld magnifying glasses to assist in observation.
An ordinary magnifying glass is generally composed of a lens and a simple frame. This kind of magnifying glass can be used under general conditions, but it shows its shortcomings when the light is dark or the details of the observed object need enough light. At this time, you need additional light source to illuminate. Flashlight is a good choice, but what if you don't have such a tool at hand? At this time, if there is a hand-held magnifying glass with light, such a problem can be solved. After all, a hand-held magnifying glass with a light is much more convenient than holding both a magnifying glass and a flashlight.
Whether it is Identify jewelry or reading, the hand-held magnifying glass can greatly improve the lack of light source in the process of use. However, from the light source stability and service life of the LED lamp of the hand-held magnifying glass, it is best to choose the hand-held magnifying glass with a stable circuit. This can ensure continuous and stable light source and long service time.
Post time: Aug-01-2022