Infrared Laser Thermometers

Our site is geared toward the use of infrared lasers within automobiles and the ever-growing technology behind them. However, it is important to mention the other many great uses of infrared lasers that help in many different professions throughout the world. Taking plumbing for example, did you know that infrared laser thermometers are used to help detect leaks so as not to have to completely destroy a wall or structure while searching where the leak begins.

Use Infrared Laser Thermometers To Detect Leaks

Yep, that’s right! In the past, before the use of infrared laser thermometers, you had to tear up flooring, or remodel your kitchen or bathroom just to find the leak! Experts like those at Hahn Plumbing & Heating utilize infrared laser thermometers to detect leaks and help to save their customers a good chunk of money on unneeded renovation or flooring repairs. So how do infrared laser thermometers work? Basically infrared laser thermometer technology works somewhat like a radar gun. You aim the thermometer at a spot where you suspect a leak might be and a small laser is emitted that will target your desired reading spot. The laser then turns colors depending on the temperature of the spot it is aimed at.

  • Blue Laser- A blue laser means that the spot you are targeting is showing cooler temperatures than its surrounding area.
  • Red Laser- A red laser means that the spot you are aiming at is warmer than its surrounding area.
  • Green/Neutral- If you detect a green or neutral light than the area you are aiming at is of room temperature

It is important that the infrared thermometer is calibrated to the room temperature before trying to distinguish a leak. You should always start at the point where you find the water coming from or where you may suspect the leak to be. Once the red or blue light disappears you will have found the spot where you leak beings. It is also important to mention that when utilizing an infrared laser thermometer it is best to stand a few feet from the wall and place the thermometer a few feet from the floor to get the best and most accurate reading.

Infrared laser technology is incredible when it comes to what it can achieve. As we continue to grow technologically advanced we will also see greater leaps in just what infrared laser technology is capable of.

Infrared Heat- Is It Good For You?

With Infrared light and lasers gaining ground within many industries including the medical industry, it is no wonder that there seem to be many benefits to those who utilize infrared saunas. While the research and exploration into the use of infrared light & heat for health purposes are still ongoing and are deemed preliminary at this stage, it is believed that infrared saunas can aid in weight loss, improved circulation, pain relief, and the removal of toxins to purify the body.  Scientists within the medical field believe that the benefits shown from the use of infrared heat might be due to the interactions between the infrared frequency and your tissue’s water content.

How Do Infrared Saunas(Heat) Work?

Infrared saunas provide a type of heat and lightwave that is able to penetrate deeper into the skin than most heat or light. Because of this deeper penetration, it is able to help heal deep tissue. In theory, your skin temperature increases but your core temperature doesn’t show that much of a significant change in temperature. As long as your pores are open and you are able to perspire adequately your core temperature should remain balanced. With the ability to heal deep tissue the heat & light of infrared saunas are believed to provide aid in helping such things as premature aging of the skin, chronic kidney disease and some studies even suggest it can double as an optional treatment for chronic pain or can be used in conjunction with physical therapy and other forms of injury treatment. Athletes have even shown faster healing with the use of heat and some scientists and researchers believe that infrared sauna use in conjunction with good nutrient intake, regular massage, and enough sleep can speed up the healing process and make managing the pain of an injury that much better. 

While many medical experts suggest that the use of an infrared sauna is deemed safe for most people, it is always best to consult your health care professional before starting any new routine that may affect your health or well-being. It is also important to note that those with cardiovascular disease, those who have had a heart attack, and those with low blood pressure may put themself at risk when using an infrared sauna. Again speaking with your health care provider who is knowledgeable in your health and pre-existing conditions is highly advised!


What Is Red Light Therapy?

In our last post, we shared a video on how dangerous infrared lasers can be for your eyesight, especially those that are invisible. And while infrared lasers have provided many benefits in many different aspects of life, we still have a lot to learn about their effects on humans. 

One thing we do know is that some types of lasers and light can be used on humans and they come with incredible health benefits.

Many of you may have heard of Red Light Therapy (RLT) a.k.a. Cold Laser Therapy, Soft Laser Therapy, Biostimulation, and Photonic Stimulation, a controversial type of therapy that produces red low-level wavelengths of light to help treat certain skin conditions. It is used both for cosmetic skin conditions as well as medical skin conditions such as slow-healing wounds.

In the early 1990s, scientists found that red light therapy was a great way to grow plants in space. They discovered that the intense light from the red diodes not only promoted growth in plants but also photosynthesis in the cells of plants. 

Once scientists saw the benefits this light had on growing plants they decided to study what it could do in the medical field to possibly increase the energy within human cells. They were hoping it might be a sure-fire way to treat conditions such as Muscle Atrophy and those with bone density issues. They have since found it to be useful in a form of therapy known as Photodynamic Therapy where it is used as an acting agent in medications which helps to photosynthesize them.

Today Red Light Therapy is used in both cosmetic and medical settings. Its cosmetic uses include: correcting skin issues such as stretch marks, wrinkles, and pigmentation. In medical settings it is used for the relief of psoriasis, to help with the side effects of chemotherapy, and to help slow-healing wounds. And while the effects of RLT seem to look promising up to this point, there is still a lot to be learned, researched, and experimented with.   

Garage Door Opener-Infrared Light

Infrared Light & Your Garage Door Opener

A perfect example of great use of infrared light that not only makes life much more convenient but also a lot safer is the utilization of it in your garage door opener. Since the early ’90s, 1993 to be exact, safety sensors on garage door openers have been a mandatory regulation. Many don’t realize the actual weight of a garage door and the potential safety hazards the door can present should there be a malfunction. While some garage door openers are mechanical and use physical force to open and close the door, others are photoelectric and use infrared light to act as the physical force like that of mechanical doors, to maintain optimal opening and closing of your door. The photoelectric or automatic garage door openers are often the most used and come with a lifespan of between 10-15 years, depending on the number of open/close cycles and maintenance received.

How do automatic garage door openers use infrared light to operate?

infrared-light-garage-openerAutomatic garage door sensors work when electricity is transformed into infrared light and is moved between a sending and receiving unit. The sending unit is located on one side of the garage door about 4 inches above the floor and the infrared beams are sent across to the receiving unit located at the other side of the garage door. Once received by the receiving unit the door has the signal to open. However, if the sending or receiving unit is misaligned the sensors will notify the wall control that there is a problem. If a problem is detected the door will automatically reverse as to prevent serious injury should the door come crashing down?

What Causes Sensor Misalignment?

Most misalignment or sensor issues are caused by human error. If the sensors are hit in any way it can cause photocell system misalignment. Other causes of sensor or infrared beam misalignment include:

  • Dirt- Should dirt be on either the sending or receiving sensor the infrared beam can be broken, which in turn affects the operating system
  • Sunshine- Although rare sunlight can fool the mirror in the receiving sensor into reading that the infrared light beam has been broken
  • Repeated Use- Repeated use of the garage door along with mountings that are not adequately secured can cause the sensors to vibrate out of alignment

The great thing about misaligned sensors is that they can be fixed with a few simplephotoelectric-garage-door-opener tools. Although infrared sensors might not seem to be too difficult to fix they are often a part of operating systems for heavy items that need to be handled with care to prevent injury. It is best to speak with a professional before attempting to fix the sensors in your garage door opening system yourself.

The infrared light technology in a garage door opening system has continued to revolutionize as more insight into this technology is developed. As we can see from self-driving vehicles, the future of infrared light just keeps getting better.


Military Use of Infrared Light

military-infrared -lightWhile infrared light has plenty of civilian uses, infrared light has the greatest impact on the military. Ever since the conclusion of WWII, military technology has exploded with innovations. The military is becoming more and more technological, replacing pilots with drones and machine-gun bullets with lasers themselves. Here are all the things the military uses infrared light for.

Rangefinders- When a sniper needs an accurate distance to a target, it is a whole lot better to rely on a rangefinder than just guesstimating the distance. Especially during low light and no light situations, using infrared light can be a game-changer as it can help you spot and range targets that you never would have seen with even night vision.

Surveillance- Criminals and terrorists work when no one can see what they’re infrared-light-military-usedoing, but with infrared light sensors on drones, they can always see what someone is up to. Since humans are always emitting infrared light, it is relatively easy to pinpoint targets in the pitch black. However, we can’t always see what they are carrying so infrared light is often combined with standard night vision to give us a more clear picture as to what is going on.

Missile/Bomb Guidance- Once they decide to drop a bomb or send out a missile they need to make sure it doesn’t cause damage to civilians or any non-affiliated buildings. In order to be more precise, there are some missiles and bombs that use infrared light to guide its payload to the right spot. These are perfect, for example, when a missile is being aimed at the extremely hot exhaust of a jet engine. This is a great solution as it minimizes unwanted casualties/damage while maximizing accuracy to the specific target.

LaWS (Laser Weapon System) – This is perhaps the coolest weapon to come out laser-weapon-systemof the 21st century. Used aboard some US Navy ships since 2014, this sci-fi weapon is something straight out of Star Wars. How it works is that it takes infrared light and shoots it at a certain target. This intense amount of energy will quickly heat up whatever it is pointed and will start to burn and destroy the target. The only con is that the laser generates a lot of heat, uses a lot of energy, and is costly. Therefore only 1 has been produced so far.

Infrared Lasers in Today’s World 

Infrared light is all around you, although you don’t see it because it is apart of the invisible wavelengths of light like much electromagnetic radiation is. However, you can feel infrared lasers as heat. That warm feeling when you step out into the sun or sit by a campfire is just infrared heat coming in contact with your skin. And scientists have many surprising uses for this type of light.

Infrared light Many Uses:

Remote Controls
From your TV remote to your game controller, both use infrared light to sendinfrared-light-uses messages to the console so that your button pushes can be registered correctly. In fact, you can take your smartphone and aim it at the top of your remote and take a picture while you’re holding down a remote button. IN the picture you should see dots of light coming out, that’s infrared light!

  • Cancer Treatment

While this is highly experimental and not fully proven, there have been promising studies that the heat from the infrared lights, when aimed at the tumor, heats the cancerous cells to a point that it kills them.


Law enforcement has mostly replaced their old radar systems with LIDAR systems. It stands for light detection and ranging. And it works on the same principles as radar. It sends out a beam of infrared light instead of radio waves to find the speed of the car. The benefit of LIDAR is that it is far more precise and accurate. 

  • Night Vision

infrared-lampThere are two main versions of night vision. The one we are concerned with is often referred to as thermal imaging. Humans and other mammals often emit infrared light due to the fact that they are warm-blooded. Thermal imaging is able to show anything that is emitting heat during the dark night.

The military also utilizes infrared light for many instruments they use within their field. In fact, Infrared light is used so much more than we realize in everyday life. With the use of infrared light in self-driving cars, we are gaining a better understanding of just what this light can do and how beneficial it is to life.

LiDAR Lasers of Autonomous Vehicles


Self driving cars have become less a vision of the future and more so a phenomenon of the present.  While there are still some issues, concerns and fine tuning to do on self driving cars, the fact that they will be a common element on our roads in the future especially, has never been more true.  You may see different self driving cars on the roads in your town or city now and wonder exactly how these automobiles work and what some of the science is behind them. Afterall, trusting a car to operate and drive itself seems a bit scary and maybe something we could never imagine. So what makes these autonomous cars actually run in a safe and effective way?  Lasers are a huge part id not the most important part of a self driving car and the success of its operation. Self Driving cars have various sensors that help to detect the obstacles and map its environment. That is where we introduce the Lidar sensor, which is a laser detection and ranging system that operates on light waves instead of radio waves. Developers have found that this kind of infrared sensor achieves the capabilities those most like the human eye!

There are 2 types of Lidar systems that play a part in self driving cars:

  • 3D Flash Systems- these systems offer a wide angle and optic source that reflect light form their exposure onto the detector and mimics or models its surroundings based on the time of light calculations( Sounds a bit complicated doesn’t it?)
  • Scanning System- This system emits light systematically in every direction and helps to detect echos individually to help map your surroundings.

Still there are different metrics that are used to gauge the quality and operating systems of the 2 LiDAR systems. These metrics include:

  • Lateral Resolution
  • Longitudinal Resolution
  • Longe-Range Detection
  • Scan Rate

Of all the different components of the LiDAR system the laser source is the MOST IMPORTANT of all.  Not only that the quality of the laser system is critical as well. The quality of the laser source is measured by different pulse measurements. These measurements include high pulse repetition which allows for scanning leading to a better and higher quality of data output. Pulse duration which gives off short pulse measurements in picoseconds and is needed to achieve longitudinal resolutions.

While the actual physics and understanding of these infrared lasers in self driving cars may seem a bit daunting and a little out of most spectrums of comprehension, one thing is for sure.  Scientits are revolutionizing the way we drive the automobiles on the roads and the safety of self driving cars as we speak. As the concept and operating systems of self driving cars are further fine tuned and established we will only continue to see improvement in the models and safety before autonomous cars are prevalent on our roads.  Thanks to infrared lasers and the use of radio and light waves self driving cars are not a what if of the future and instead are becoming a thing of the present!


Welcome to our blog on infared lasers for automobiles. We hope you find our site interesting and full of useful tips and facts. We encourage you to share our site with others! We started this blog in hopes of relaying some of our insight pretaining to infared lasers and what they can do for you!