It’s possible you have recently taken the plunge into purchasing your first magnifier. Maybe it’s a handheld magnifier used for reading, and perhaps it’s just a plain old magnifying glass. What I have seen in recent time is some confusion about a few things of the actual use of some of these handheld magnifiers. The most recent being simple but also somewhat confusing. Why do Magnifying glasses flip images? After digging into it, here is what I can tell you on this topic.
So, why do magnifying glasses flip images? Magnifying glasses are constructed and made of convex lenses. Convex lenses primary purpose is to make an object appear larger by dispersing light. Objects will be flipped when the light is focused at a point beyond the lenses focal length for the magnifying glass.
I’m sure that may have sounded somewhat confusing so let me try and break it down a little more clearly for you.
The goal is here for you to understand how magnifiers work and how to adjust the magnifying glass accordingly so that you don’t keep having your images appearing upside down or inverted (flipped). Let’s dive into it.
More About the Focal Point with Magnifiers and Magnifying Glasses
As stated before, your magnifier/magnifying glass is going to made of convex lenses. The primary goal for your magnifier is to enhance and enlarge an image or text by using what’s known as the optimal focal point. This is when the object can be clearly displayed through the magnifying glass without an issue. Being just a tiny bit past this point is when you begin to run into issues with your images appearing a bit funky.
This is typically only a few inches away from your magnifier in most circumstances. When you pull your magnifier or magnifying glass further away, you are increasing the total distance needed for the lens to magnify the object which in return causes you to leave that desired focal point.
Once you reach this point where you have exceeded the focal distance, your object you are attempting to view will begin to invert or flip on you. An easy way to test this theory is to move towards and away from the object slowly and you will gradually be able to see what the optimal distance and focal point of your magnifying glass is. Right, when your image flips on you, you know that you have definitely exceeded this point and your magnifying glass being used needs to be used at a closer distance for optimal performance.
It’s that easy. If you are having this issue continuingly, just simply move your magnifier closer to the object, and it should appear regularly through the glass.
Light Travels in Rays, Magnifiers Converge Light to Produce Images
Science always matters folks. Another consideration and take away to understand with magnifying glasses are that they use light rays and force/bend them toward the center of your magnifying lenses. This is what allows your image to be larger than it is.
The distance that we discussed earlier is crucial because it indicates that you are just past the converging center of light which in turns means you are going to see the upside down images.
Right when you break this barrier plane of the light is when the image will flip or be upside down through the lenses.
Higher Magnification Power Flips Images Faster
Another key takeaway is to keep in mind that the higher the magnification power is for your current handheld magnifier, the shorter the distance will be before you start experiencing some of the flipping and upside-down images.
If you take your large lenses with lower powered magnification, it’s almost impossible at arms to reach to reach the breaking point where an image will flip or inverse.
However, if you switch a smaller lenses size with higher magnification power and even hold it up towards your fingernail, it takes only an inch or so before you notice your finger flipping over within the lens frame.
Understanding Magnification Power
To start, if you haven’t done so already, you need to begin by reading our post about magnification power. It can give you a good breakdown of everything you need to know and what 3x,5x,10x really means.
What I wanted to be sure we clarified was this image flipping scenario with higher powered lenses. In my example, I used the Imagniphy 10x magnification lenses on their handheld magnifier. Incredible magnifier if you guys need one by the way. Very budget friendly as well.
Anyways, using the higher-powered option, I held the magnifier up to a small piece of paper with text on it. The images flipped and inverted at about 2.5 inches off the paper. This clearly indicates that we exited the conversion point where the light is forced that we discussed previously.
I then did the same thing with the larger lenses. I was not able to get the image flipped using only my arm’s length to back away from the paper and text. There isn’t enough magnification power or light being converged to exit the focal point or notice this happening.
I suppose it was possible that the image had inversed but by the time I backed up even further from my notepad, it was too blurry even to notice if it was upside or down not.
In plain English terms, that alone is proof that strong magnification levels are going to cause this image flipping very easily. Just move closer to the object to use your magnifier, and you won’t have any further issues.
Putting It All Together. Adjust Your Magnification and Get Closer to Your Objects
If you were under the impression that your magnifier had some form of an issue, it doesn’t. This will happen with every magnifier you can purchase. It’s just part of the science behind how they are constructed. If you are having issues, you likely just need to move the magnifier closer to the object you are trying to enhance, and you will have nothing to worry about.
Test our theories on your own and see how it works. Once doing so, let us know your findings and be sure to drop a comment below.