wanting to buy vertical polarised screen protector for ipad

[wilger]

I am wanting a vertical polarized screen protector for ipad mini 5 and am unable to find any. Lots of regular ones but no polarized. Anyone have a source in Canada preferably?

 

[MA2 317]

I can't help you but I am curious as to why?

I think I know but thought I'd check.

Do you wear polarized glasses and want a screen protector to offset the polarization when looking at the screen?

You might be able to build your own with a regular screen protector and attaching polarized film to it somehow.

A quick Google search for polarized screens gave me these results and thought maybe it would work?

Google Search

It was a thought I had if that was the scenario.

.

 

[wilger]

They are supposed to stop the reflections on the screen surface. Like you looking at the screen. will have a look thx

 

[hank970]

Linear polarizers in sheet form are available in various sizes from Amazon and other outlets. They probably wouldn't be self-adhesive, so you'd need a way to attach them to your iPad screen.

Be aware, though, that the LCD screens themselves are inherently polar. If you orient an attached polarizer such that the polarities of the display and sheet are perpendicular to one another, any light emanating from the display will be extinguished. If you attach the sheet so its polarity aligns with that of the display, light will pass though. The same would be true if you were to rotate one sheet of polarizing material in front of another.

In the attached photos, the small hole in the corner of the polarizing sheet is indicative of the sheet's orientation. Note that, in one position, the sheet allows light from the LCD screen (in this instance, the repurposed display from a digital picture frame) to pass through. When the same sheet is then rotated 90 degrees, it doesn't. The resulting blockage of light is known as extinction.

You can test the phenomenon yourself by wearing polarizing sunglasses and watching the display on your iPad while slowly rotating it. At two points in the rotation, the display will go to extinction.

I'm not sure what you hope to achieve by attaching a polarizing sheet to your iPad's display, but I doubt you'll find it effective at doing anything but slightly dimming the display.

 

[wilger]

Hello. I want to reduce reflective glare from screen. You always get the reflection of your face on the screen in bright sunlight. Without that the screen would be much better.

 

[hank970]

Hello. I want to reduce reflective glare from screen. You always get the reflection of your face on the screen in bright sunlight. Without that the screen would be much better.

Unwanted reflections on controller screens are a common and vexing problem, and being able to mitigate them would be wonderful. Unfortunately, what you propose won't remedy the problem. Would you rather have the image of your face reflected off the shiny surface of an iPad screen or off the shiny surface of a polarizing filter? Either way, you're going to have a reflection.

It would be more effective to 1) tilt the screen so you can't see a reflection of your face, and 2) contrive or purchase, if such a thing exists, a hood to shield the iPad screen from other extraneous reflections. Yes, it would be a lot bulkier than the hood I use on my RC-2 controller.

You can bet that, if polarizing film were a viable solution, there'd already be a bunch of products available which feature that technology.

 

[MA2 317]

Hello. I want to reduce reflective glare from screen. You always get the reflection of your face on the screen in bright sunlight. Without that the screen would be much better.

2) contrive or purchase, if such a thing exists, a hood to shield the iPad screen

Back in 2017, I started my drone flying with a SPARK and a iPad mini4.

I found the same problem you are experiencing and a sun hood helped and it is cumbersome.

I tried a 3 sided hood that didn't work well because the pesky sun light sneaks in on the open side.

I purchased a 4 sided hood and it made a world of difference.

The one I purchased was similar to this one and it worked well. Again, it is cumbersome but works.

https://www.adorama.com/hnhav1.html

I now fly with an old Tripltek tablet that has the brightest screen available and it works well in direct sunlight without a sunshade.

.

 

[wilger]

yes I guess I will live with it. thanks all for your replies. appreciated.......

 

[BossBob]

Polarised filtering works best when the surface that is doing the reflecting is at a 45° angle to the viewer. So it wouldn’t work optimally if you are looking straight at the screen.