Are you talking about a heads up display?

Show a drawing of how the “projector” and viewer are situated.

 

Are you talking about a heads up display?

Show a drawing of how the “projector” and viewer are situated.

hello bob happy to hear from you. So if I can I'll show you the drawing by replying to your question, however, the operation is really simple it's all a matter of optics and lenses. yes the HMD you are referring to, I am referring too, and that's what I want to do but at a greater distance from the eye maybe 1 meter and even simpler it's okay to project a single image also using a vintage cinema projector and with only one color the important thing is that the eye sees the image well. I believe you should simply use a collimator lens or a wave guide to convey the beam to the eyes and then a focus lens and above all a surface for the reflection, all very simple I am amazed that you are finding it difficult to understand me but it's all so simple to understand (a projector that can only be seen by one person, that's enough).

 

Are you talking about a heads up display?

Show a drawing of how the “projector” and viewer are situated.

 

You could encode the image.

 

The reality is that the system for direct projection into the eye does not exist yet. Projection onto glasses is in the experimental/development stage and quite expensive. Virtual reality headsets are available for purchase now, but still rather expensive, although gamers buy them. Augmented reality glasses are also available now. These are worn in a manner similar to protective goggles or night vision goggles. AND they are worn,not placed some distance away.
NONE of them are anything like contact lenses, I can not imagine where that impression came from.

 

The heads up displays I mentioned use the windshield to reflect the image. But you seem to want something that is not projected onto any kind of a screen.

I think the only way to “project” an image directly to the eye without a screen to project it on is a hologram.

 

NONE of them are anything like contact lenses, I can not imagine where that impression came from.

Probably from my post that referred to the product trial of contact lenses that can replace VR headsets.

They would satisfy the TS requirement. Only the person wearing them could see the display. Stereoptic displays could show the image at any distance desired from the wearer.

However, the TS did not like solution. Perhaps because they are only in a trial.

 

The reality is that the system for direct projection into the eye does not exist yet. Projection onto glasses is in the experimental/development stage and quite expensive. Virtual reality headsets are available for purchase now, but still rather expensive, although gamers buy them. Augmented reality glasses are also available now. These are worn in a manner similar to protective goggles or night vision goggles. AND they are worn,not placed some distance away.
NONE of them are anything like contact lenses, I can not imagine where that impression came from.

no no mister I believe that the translation from Italian to English is causing confusion, I already know that the translation is confusing I will try to speak with simple words. So from the drawing that I certainly made with many errors, the light is not directed on the eyes otherwise it obviously dazzles, but it hits a surface to be seen by the eye in that drawing I had drawn a projection from behind as it is used in the screens of television programs . with this answer I will answer you both the question of the windshield I did not understand it because this translator is not good, but what you say is fine only that the image or the projected video must be visible only by one person and that's it, I believe that we are close to the solution and then you are very intelligent and patient with me thank you, on another forum they told me to, look at the technology of laser televisions in which if you move sideways from the screen you do not see anything anymore, so only the person who is in front of the image can see, and this suits me, what do you think of these laswr tvs, can they be adapted as projectors ??

 

The heads up displays I mentioned use the windshield to reflect the image. But you seem to want something that is not projected onto any kind of a screen.

I think the only way to “project” an image directly to the eye without a screen to project it on is a hologram.

no no mister I believe that the translation from Italian to English is causing confusion, I already know that the translation is confusing I will try to speak with simple words. So from the drawing that I certainly made with many errors, the light is not directed on the eyes otherwise it obviously dazzles, but it hits a surface to be seen by the eye in that drawing I had drawn a projection from behind as it is used in the screens of television programs . with this answer I will answer you both the question of the windshield I did not understand it because this translator is not good, but what you say is fine only that the image or the projected video must be visible only by one person and that's it, I believe that we are close to the solution and then you are very intelligent and patient with me thank you, on another forum they told me to, look at the technology of laser televisions in which if you move sideways from the screen you do not see anything anymore, so only the person who is in front of the image can see, and this suits me, what do you think of these laswr tvs, can they be adapted as projectors ??

 

Probably from my post that referred to the product trial of contact lenses that can replace VR headsets.

They would satisfy the TS requirement. Only the person wearing them could see the display. Stereoptic displays could show the image at any distance desired from the wearer.

However, the TS did not like solution. Perhaps because they are only in a trial.

no no djfantasi I don't want so much technology, I can't put contact lenses on all people, but I need something more "for everyone", I believe that with bob and misterbillz, we are reaching the solution unfortunately the translation generates confusion between us

 

remember those little rulers that have a different picture as you rotate them. (holograms) maybe u can project onto one of those and it might work, probably need to be too accurate a projection tho.

 

remember those little rulers that have a different picture as you rotate them. (holograms) maybe u can project onto one of those and it might work, probably need to be too accurate a projection tho.

yes copernicus I remember those cards, in Italy they were cards, which when we changed the angle by turning them with our hands showed another image. How can I apply this technology? you say to project the beam of light on the paper that acts to create the reflection and in this way when the image reaches my eyes it comes to me well, but if I move I don't see anything anymore? is this what you meant ?? to me it seems like a great idea, but cpme is called that type of paper to me it reminds me of holographic paper

 

Heads up displays accomplish this by reflecting off glass. You will only be able to see the image from one angle. As opposed to movie projection screen which uses glass beads to reflect at all angles.

I think if you project forward onto on a glass screen you can make it work, but rear projection will not.

 

A possible solution is a Kerr cell shutter used in 3D glasses.

The glasses would be synchronized with the projected image. The projected image would alternate between the desired image and some other random image that tries to mask out the desired image.

 

An array of slats in front of a back projection screen could limit the view to a narrow angle. That is similar to how how the flipping image cards work.

 

Now it seems that the goal is for multiple people to be able to view the image, all at the same time, but with the projection being into their eyes directly. That is not possible with current technology, nor without a great deal of additional complexity. Also, probably never happening. So either project the images onto a screen for all to see, or provide all with individual VR headsets similar to what game player use.

 

Now it seems that the goal is for multiple people to be able to view the image, all at the same time, but with the projection being into their eyes directly. That is not possible with current technology, nor without a great deal of additional complexity. Also, probably never happening. So either project the images onto a screen for all to see, or provide all with individual VR headsets similar to what game player use.

Actually, where did you get that idea? The goal is to project an image on a screen some distance from multiple people such that only ONE can view it.

As stated in the original posts.

 

In that case it is simple. Project the image using infrared, or maybe ultraviolet, and only one person has the glasses to see it.
But really, with so many descriptions it does get mixed up.

 

The TS responded to the contact lens solution…

djfantasi I don't want so much technology, I can't put contact lenses on all people, but I need something more "for everyone",

So I think that putting VR or 3D glasses on everyone won’t cut it.

A possible solution is a Kerr cell shutter used in 3D glasses

or provide all with individual VR headsets similar to what game player use.

However @MisterBill2, I like your idea. Projection in the IR or UV band may be the ticket!

 

Heads up displays accomplish this by reflecting off glass. You will only be able to see the image from one angle. As opposed to movie projection screen which uses glass beads to reflect at all angles.

I think if you project forward onto on a glass screen you can make it work, but rear projection will not.

yes what you say is okay for me bob the important thing is that the projection is not really direct, because even if I move a few millimeters I would like the image to be seen the same