• Optics/"holography" question

    From bitrex@21:1/5 to All on Mon Feb 7 12:23:06 2022
    This is a page from a patent for a "hologram" (not really) video game
    (the game was built, it kinda sucked otherwise but I recall in-person
    the optical effect was pretty remarkable for it finally being a
    variation on Pepper's Ghost):

    <http://2.bp.blogspot.com/-MSBMPgiiXZU/UzZXaAD4A3I/AAAAAAAAC4g/YSW_Wdq94aI/s1600/tt3.PNG>

    Seems like something isn't entirely clear from the diagram, though,
    wouldn't there have to be another partially reflective piece of material
    on the "stage" on top at 45 degree angle to project the image coming
    from the hemispherical mirror down below to the user? Maybe that's
    implied in the text but I can't immediately find the original patent.

    It also seemed to me that image quality could be improved with modern
    tech by pre-distorting the image with respect to the transmission path
    and particular characteristics of the final display medium but looks
    like Disney claims that's a non-obvious patent-able innovation:

    <https://patents.google.com/patent/US8262226>

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  • From corvid@21:1/5 to bitrex on Mon Feb 7 10:44:33 2022
    On 2/7/22 09:23, bitrex wrote:
    This is a page from a patent for a "hologram" (not really) video
    game (the game was built, it kinda sucked otherwise but I recall
    in-person the optical effect was pretty remarkable for it finally
    being a variation on Pepper's Ghost):

    <http://2.bp.blogspot.com/-MSBMPgiiXZU/UzZXaAD4A3I/AAAAAAAAC4g/YSW_Wdq94aI/s1600/tt3.PNG>




    Seems like something isn't entirely clear from the diagram, though,
    wouldn't there have to be another partially reflective piece of
    material on the "stage" on top at 45 degree angle to project the
    image coming from the hemispherical mirror down below to the user?

    What's the arc over the stage for?

    Maybe that's implied in the text but I can't immediately find the
    original patent.

    I have a desktop Mirage
    https://optigone.com/

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  • From Don Y@21:1/5 to bitrex on Mon Feb 7 14:11:13 2022
    On 2/7/2022 10:23 AM, bitrex wrote:
    This is a page from a patent for a "hologram" (not really) video game (the game
    was built, it kinda sucked otherwise but I recall in-person the optical effect
    was pretty remarkable for it finally being a variation on Pepper's Ghost):

    Disney had a 3D display at Disney World (Fla?) ~40+ years ago. IIRC,
    it was very small (breadbox sized) and didn't show off its capabilities particularly well. (I'm trying to recall what part of the park
    it was located in; I want to say near the "Eastern" exhibit?)

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  • From Don Y@21:1/5 to bitrex on Mon Feb 7 17:12:44 2022
    On 2/7/2022 4:33 PM, bitrex wrote:
    On 2/7/2022 4:11 PM, Don Y wrote:
    On 2/7/2022 10:23 AM, bitrex wrote:
    This is a page from a patent for a "hologram" (not really) video game (the >>> game was built, it kinda sucked otherwise but I recall in-person the optical
    effect was pretty remarkable for it finally being a variation on Pepper's >>> Ghost):

    Disney had a 3D display at Disney World (Fla?) ~40+ years ago. IIRC,
    it was very small (breadbox sized) and didn't show off its capabilities
    particularly well. (I'm trying to recall what part of the park
    it was located in; I want to say near the "Eastern" exhibit?)

    Long time since I've been to the Magic Kingdom, I recall it was their 15th anniversary at the time (I can still hear the music in my head, fifteeen years,
    we're having a paaaarty...) so that was late 1986 or early 1987 maybe, I remember it was pretty snowy back home.

    This had to be a decade earlier as I'd left the East coast long before.
    I recall a trip to Disney *Land* (SoCal) some time later -- my first
    experience with the night-time fireworks display and the "show" on
    the island (?).

    Didn't know anything about Pepper's Ghost at that age but I remember the haunted house ride where they project a ghost into your moving carriage during
    the ride, and I think that used a variant of the illusion.

    Main other thing I remember was Space Mountain was closed for renovation, very
    disappointing. But there was another ride that went through it that was still running, the floodlights were all on and guys climbing scaffolds and welding the tracks, pretty mind-blowing stuff for 8 y/o me regardless.

    IIRC, no Space Mountain, at that time. No Epcot, etc. ISTR riding it at Disney*Land*, much later in life. Hard to keep track of which visit was
    to which park and at what time, etc.

    [I do recall riding on a "simulator" -- Back to the Future? -- at Disney
    Land as a colleague treated me to the trip. He was annoyed because I spent
    the "ride" trying to map the motions of the "car" using my camera dangling
    as a "down indicator" instead of enjoying the presentation. What he failed
    to appreciate was that I found the information from observing the camera's indication of our orientation -- contrasted with what I *thought* -- to be absolutely fascinating! How easy it is to deceive the senses!]

    Looks like Disney is laying claim to the process of pre-distorting images to project inside spheres?

    Disney seems to have several other patents on various aspects of PG e.g.

    <https://patents.google.com/patent/US7883212B2/en>

    and

    <https://pdfpiw.uspto.gov/.piw?Docid=11210843&h>

    "A Disney spokesperson said the company 'files hundreds of patents each year as
    we explore developing technologies.'"

    Not an expert but these look like pretty lame patents.

    Patent doesn't have to be "meaningful"... just *first*!

    They can be really harmful to the *holder* -- by stifling *his* innovation!
    The thinking is that they've already "solved" THE problem and, so, cling
    to their solution... while their competitors innovate PAST them!

    I've worked with a lot of startups/tiger teams. There, a patent can help make the startup more marketable (for acquisition). But, I suspect a good many patents benefit the patent attorney more than the holder!

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  • From bitrex@21:1/5 to Don Y on Mon Feb 7 18:33:35 2022
    On 2/7/2022 4:11 PM, Don Y wrote:
    On 2/7/2022 10:23 AM, bitrex wrote:
    This is a page from a patent for a "hologram" (not really) video game
    (the game was built, it kinda sucked otherwise but I recall in-person
    the optical effect was pretty remarkable for it finally being a
    variation on Pepper's Ghost):

    Disney had a 3D display at Disney World (Fla?) ~40+ years ago.  IIRC,
    it was very small (breadbox sized) and didn't show off its capabilities particularly well.  (I'm trying to recall what part of the park
    it was located in; I want to say near the "Eastern" exhibit?)

    Long time since I've been to the Magic Kingdom, I recall it was their
    15th anniversary at the time (I can still hear the music in my head,
    fifteeen years, we're having a paaaarty...) so that was late 1986 or
    early 1987 maybe, I remember it was pretty snowy back home.

    Didn't know anything about Pepper's Ghost at that age but I remember the haunted house ride where they project a ghost into your moving carriage
    during the ride, and I think that used a variant of the illusion.

    Main other thing I remember was Space Mountain was closed for
    renovation, very disappointing. But there was another ride that went
    through it that was still running, the floodlights were all on and guys climbing scaffolds and welding the tracks, pretty mind-blowing stuff for
    8 y/o me regardless.

    Looks like Disney is laying claim to the process of pre-distorting
    images to project inside spheres?

    Disney seems to have several other patents on various aspects of PG e.g.

    <https://patents.google.com/patent/US7883212B2/en>

    and

    <https://pdfpiw.uspto.gov/.piw?Docid=11210843&h>

    "A Disney spokesperson said the company 'files hundreds of patents each
    year as we explore developing technologies.'"

    Not an expert but these look like pretty lame patents.

    --- SoupGate-Win32 v1.05
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  • From DecadentLinuxUserNumeroUno@decadenc@21:1/5 to Don Y on Tue Feb 8 00:48:53 2022
    Don Y <blockedofcourse@foo.invalid> wrote in
    news:sts1tt$3dc$1@dont-email.me:

    On 2/7/2022 10:23 AM, bitrex wrote:
    This is a page from a patent for a "hologram" (not really) video
    game (the game was built, it kinda sucked otherwise but I recall
    in-person the optical effect was pretty remarkable for it finally
    being a variation on Pepper's Ghost):

    Disney had a 3D display at Disney World (Fla?) ~40+ years ago.
    IIRC, it was very small (breadbox sized) and didn't show off its
    capabilities particularly well. (I'm trying to recall what part
    of the park it was located in; I want to say near the "Eastern"
    exhibit?)


    There is a museum of Holography in New York City.

    Went there in the mid '80s. It (holography) was not nearly as
    advanced as now (for what we were seeing). I am sure the military
    applications were far more advanced.

    It is still there but they call it "Holographic Studios" now.

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  • From DecadentLinuxUserNumeroUno@decadenc@21:1/5 to Don Y on Tue Feb 8 00:53:03 2022
    Don Y <blockedofcourse@foo.invalid> wrote in news:stsci9$bpd$1@dont-
    email.me:

    How easy it is to deceive the senses!]

    Yeah, just look at all those deceived Trump voters.
    They seem to think that Trump's fat skanky criminal ass tastes good.

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  • From Sylvia Else@21:1/5 to bitrex on Tue Feb 8 13:14:53 2022
    On 08-Feb-22 10:33 am, bitrex wrote:
    On 2/7/2022 4:11 PM, Don Y wrote:

    Not an expert but these look like pretty lame patents.


    It may be a defensive patent - one not intended to make money, but just
    to protect against someone else obtaining a patent and seeking to
    extract rent thereby.

    Sylvia.

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