How did SONY Make REAR SCREEN PROJECTION TV? (television technology history electronics VIDEO Japan)

Comments · 100

• CA

  @CajunReaper95 · 3 years ago

  My grandfather bought a Toshiba 50 inch big screen years ago when I was a kid and we still use it 20+ years later.

  56

• CW

  @cwbeas · 2 years ago

  Dad bought one in the 90s. <br>Best movie memories. <br>I&apos;ll never forget that specific textured glow from the fresnel screen.

  11

• TH

  @The_Conspiracy_Analyst · 2 years ago

  I was a process control engineer for a SONY branded rear projection tube! &nbsp;I worked at a place called &quot;Lexel Imaging&quot; which was the remnant of Hughes Electronics. &nbsp;One of their products were CRTs that looked EXACTLY like those at <a href="https://www.youtube.com/watch?v=grImBVtyJMM&amp;t=190">3:10</a> and were used in CRT projection systems for aircraft flight simulator trainers. &nbsp;Ours had a glass plate that was bonded onto the front and ethylene glycol coolant pumped in. &nbsp;And they WERE a SONY branded part. Lexel Imaging had the contract rights to manufacture them under the SONY name, and I was the process control engineer for these tubes! &nbsp;The deal was we had to do it EXACTLY as Sony demanded and couldn&apos;t modify much about the process. &nbsp;There was a bonding agent called Shin-Etsu, which needed to be ordered from Japan. &nbsp;I remember when the 2011 Tsunami hit, I got funds from my boss to order a whole bunch of it because I anticipated a shortage --- and I was RIGHT. &nbsp;The Shin-Etsu plant had production problems a little later because of the electrical power rationing that resulted from that tragedy. &nbsp;Anyway, that&apos;s my story.

  32

• RY

  @ryans413 · 2 years ago (edited)

  So to clarify this more to people that need it. The rear projection sets had three small CRT screens inside the set each with there own coloured filters red green and blue the three main primary colours. Those CRTs would project the image off a mirror in the back the three images would combine as one on the panel screen in the front. The images were produced upside down so when the image bounced off the mirror it be the right way on the screen in the front. Being a CRT the blacks were perfect and colours were deep and inky. The downside is these sets were big and heavy and sometimes during the day the screen since it’s being projected could look washed out but not all the time.

  5

• BB

  @BB.......... · 2 years ago

  <a href="https://www.youtube.com/watch?v=grImBVtyJMM&amp;t=178">2:58</a> &quot;Exacting Sony specifications.&quot;<br><br>I remember when there was a rash of boards in 40&quot; Sony XBR flat screen CRT TVs in the early &apos;00s.

  3

• DA

  @davidperry4013 · 1 year ago

  My grandmother had a Sony trinitron 32 inch from the late 1980s and it lasted 25 years before it had to be replaced with a flatscreen due to the disappearance of analog cable channels. My parents had a Sony Trinitron WEGA 36 inch CRT from 2004 but they upgraded to a Bravia 42 inch in 2009 which lasted until a nasty power surge took it out in 2014 but they got a new 1080P 45 inch Bravia WiFi TV back then and it has better blacks and overall picture quality than my entry level LG 47 inch LED 4K TV. Currently I have a Sony Bravia 8 65 inch W-OLED and now I have better picture quality than the movie theaters.

  4

• TT

  @TT-dp8qh · 3 weeks ago

  Those CRT and tubes were blurry and fuzzy. Believe it or not, I didn&apos;t watch much TV when I was a kid. <br>Now, I watch more on my tablet.

  1

• MI

  @MichaelBowker-1970 · 2 weeks ago

  I have seen &nbsp;Mitsubishi &nbsp;ones &nbsp; here in in NZ

  1

• 05

  @05xrunner · 2 years ago

  DAMN. I worked there back in 2000. I was only 21 then and I did the image calibrations on the rear projection big screen tv&apos;s. We were all i the &quot;tent&quot;, Doing the color balance, white balance system(WOLF) and man I can remember then other one. our Reference signal was A bugs life. I think I have seen that movie 600 times from working there LOL

  13

• JA

  @JAKOB1977 · 2 years ago (edited)

  thx for the video. its fascinating to sense that USA had a consumertech-industry back then..<br>but then again... hmm yeah the era of the Dodo.

  5

• MY

  @mystica-subs · 2 years ago

  On a fast-track to the future ... where CRTs no longer are made, LCDs won&apos;t see any further technological advancement, OLED is commonplace, and MicroLED is the state of the art...

  4

• CH

  @chaddentandt9868 · 3 years ago

  Another great video looking back at production facilities.

  4