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AI - VIEW
  • 6/2/2025
Transcript
00:00This is a self-leveling cross-line laser level. In this video we'll take a close look at the
00:05clever mechanism inside to see how it works. Before we jump into the inner workings of a
00:10laser level let's first look at the key external and internal components involved. Let's get started.
00:18A laser level is a tool that projects a laser beam in the form of a dot,
00:22a horizontal line, a vertical line, or cross lines. The laser beam acts as a precise visual
00:34reference for aligning and leveling objects. It can be red or green with green lasers being more
00:40visible especially in daylight. What makes this tool unique compared to traditional levels is its
00:47ability to automatically level itself even if the base is not level. Before we dive in can you
00:54guess how far a line laser can reach? Watch till the end of this video to find out if you're right.
01:00Drop your guesses in the comments below. This is the window through which the laser beam is projected.
01:07This is a threaded mount. It allows the laser level to be mounted on a tripod for stability during use
01:13and height adjustment. This is the battery compartment. It holds the batteries that power the device.
01:22This is the power switch where you can turn the device on and off. Now let's take a closer look inside
01:29the laser level. This is the laser module that emits the laser beam. Inside there is a laser diode,
01:39a semiconductor device that emits coherent light when a voltage is applied to it. The laser diode is
01:46made of two semiconductor materials. The p-type layer that has an access of holes or in other words
01:53a lack of electrons and the n-type layer that has an access of electrons. Between these two semiconductor
02:00materials there's an active layer where the laser light is generated. Metal contacts are attached to the
02:07n-type and the p-type material to allow electric current to flow through the diode. The ends of the
02:12diode are coated with mirror-like materials to reflect light and create an optical cavity. One end is fully
02:19reflective and the opposite end is highly reflective but can let some light out. When an electric current
02:27flows through the diode electrons and holes flow and combine in the active layer. This process releases
02:34photons. Some of these photons interact with other electrons to produce even more photons. The photons
02:40bounce back and forth between the reflective internal surfaces of the diode amplifying the light.
02:47Now while we're on the subject of amplifying the light we want to take a moment and thank each and
02:50every one of you for helping us amplify ours. We've just hit 90 000 subscribers on youtube and we couldn't
02:56have done it without your incredible support. Your likes comments and subscriptions keep us motivated to create
03:02more videos and we're truly grateful. And for those of you who would like to go even further to support
03:06our channel check out the patreon link in the description below. There you can gain access to
03:11exclusive perks and help us continue creating more videos and post them more frequently. Thank you for
03:16being a part of our journey. Now let's get back to the video. Eventually the light builds up enough
03:20intensity to escape through one end of the diode producing a laser beam. The laser beam is then split
03:27into two beams that are directed through cylindrical lenses to form perpendicular lines. This is the
03:34main printed circuit board assembly that controls all the laser level functions. Mounted on the edge of
03:42the main pcba is a limit switch that turns on the laser beam when activated. The laser module is mounted on a
03:49pendulum. The pendulum is free to swing in two axes. It hangs from the housing and uses the force of
03:57gravity to level itself. When the laser level is tilted in any direction the pendulum swings to compensate
04:04ensuring that the laser beam remains perfectly level. The pendulum frame is made of steel and hangs directly
04:11over a magnet. The magnet dampens the motion of the pendulum and helps it to quickly stabilize.
04:17This is the electronic sensor that monitors the position of the pendulum. It's mounted on a second printed
04:24circuit board assembly connected to the main printed circuit board by three wires.
04:31If the pendulum deviates beyond a certain angle, typically within plus or minus four degrees of level,
04:37the sensors trigger a signal that shuts off or makes the laser blink to prevent incorrect readings.
04:43Some laser levels may also provide an audible warning when the pendulum moves past the allowable threshold.
04:51When the power switch is on the on position, it raises the pendulum locking arm up, allowing the
04:57pendulum to move freely, while simultaneously activating the limit switch that powers on the laser.
05:05Moving the switch to the off position moves the pendulum locking arm
05:09down, deactivating the limit switch while simultaneously locking the pendulum so it doesn't move during transport.
05:18As promised, it's time to reveal how far a line laser can reach.
05:21The maximum reach of a line laser can vary based on the environment and whether a detector is used.
05:27Indoors, a line laser can reach up to about 30 meters without significant loss of visibility.
05:33Outdoors, in bright daylight conditions, the range of a line laser can diminish to around 10 meters or less.
05:40When paired with a laser detector, the range of a line laser can extend up to 50 meters or more.
05:46The visibility of the laser line also depends on factors like the laser's color, green being more
05:51visible than red, the power of the laser, and the ambient lighting conditions.
05:56Let us know in the comments if you guessed correctly.
06:03Wasn't monitoring below.
06:10This is a negative response.
06:13A data clamp called 39.
06:16The location of the laser can Horse recovery from1P наход to be very llamamed for exactly
06:20freedom.
06:21The discussion of the laser and colour survival of the laser are clearly replaced by hollow Mommy.
06:24Clearly, we have the ball has gone downhill up here and thebrig Winds.
06:26We have the ability to reduce the LABA.
06:28And this will be a wide variety of points.
06:29There will be slightly more if i don't manage the whole line laser from there but to do it.