As we saw in another related note, indoor leveling was greatly benefited by the popularization of the laser, especially the laser level green lines, which gives greater visibility than red.
Now, how does the laser level of green lines work, and how can we get more out of it? We will see it below in this note.
Operation of the laser level of green lines for interiors
Approximate visualization of the visible electromagnetic spectrum. The green light (whose wavelength varies between 500 and 550 nm) is located near the center.
The green light is, due to its position within the visible electromagnetic spectrum, one of the best visible to the human eye. It occupies approximately the central zone of the visible spectrum, in the range of 500 to 540 nm (nanometers) of wavelength.
Due to the operating principle of the laser diodes, at the same level of input power, greater luminosity is obtained in the range of green than in the red one; However, the green emission diodes began to be massified as of 2010, which is why only since then did the laser levels take advantage of this optical advantage.
The laser level of green lines provides two or more diodes that project green lines horizontally and vertically and can be done separately or together. In this way, enveloping lines are achieved horizontally and vertically, with which it is possible to square and level in both normal directions.
How do you achieve a higher brightness than with red lasers?
In addition to the optical principle, many laser models of green lines incorporate a technology that monitors the temperature of the diodes, adjusting the power output to achieve the highest possible efficiency at all times.
How do you know if the laser level is projecting perfectly leveled lines?
The laser levels have an extremely precise internal inclinometer, which allows them to correct the small inclinations of any surface and project lines with a maximum error of 3 millimeters per 10 linear meters, as long as the maximum inclination of the surface on which it rests it is less than 4 °.
When the support surface exceeds this inclination, the laser level emits blinking lines, indicating that it was not possible to self-level.
How do I level the laser if it emits blinking lines?
As we saw before, if the laser level emits blinking lines, it means that the surface where it is supported has an inclination greater than 4 ° and it is not possible to self-level it.
In these cases, it is necessary to use the tripod. This is a standard accessory in laser levels of any kind, so they are compatible with each other.
Once the laser is adjusted to the tripod, it is placed in such a way that its legs are outside the irregular zone. The laser level is turned on and, if you continue to emit blinking lines, try to level the tripod by using supplements under your feet if necessary.
How can I locate the laser level so that my own body does not cover the projected lines?
This is a persistent query in DeMáquinas. Many people place the laser level in the geometric center of the room and then, when working, in certain areas the body begins to obstruct the lines.
To avoid this inconvenience, it is enough to laterally move the laser level in the opposite direction to where we are. For example, if we work to the right of the room, we will only have to run the level to the left. Thus, the beams of light will reach the wall with a greater inclination, allowing us to work without interfering with the light.
What if I want to work with inclined planes?
The laser level, in addition to allowing us to level vertical and horizontal objects, also gives us the chance to project oblique lines. This is useful if we need, for example, to install a handrail that is perfectly parallel to the stairs, or to look for the perpendicular of any inclined plane.
I do not have a tripod and I need to place the laser level at a certain height on the floor
The laser levels have a built-in clamping system, which allows them to be attached to different flat surfaces such as rails, beams and profiles -frequent in construction sites and inside homes.
Once attached to the rail or beam, and while the grip is firm, the green laser level will self-level, so that we can continue working properly.
Another way to achieve this is through the use of extenders, which are similar to the rails of the bathroom curtains because they have internal springs that allow adjustment between the ceiling and the floor.
The laser level is adjusted to your body and the extender is positioned at some point in the room where it does not obstruct the work to be done. The laser is leveled and, once the lines are projected normally, work can be continued.
What is the laser detector used for?
The room we are working in may have a lot of daylight. In that case, it will be difficult to visualize the laser line.
For these cases, the detector allows to correctly visualize the laser light on its surface, without the reflection of sunlight preventing it.