Logo descriptions by Hohohomer, Sega3dmm, and mr3urious
Logo captures by mr3urious, Eric S., Columbia-Pictures, and V of Doom
Editions by mr3urious, Hoa, Eric S., Logophile, V of Doom, and Donny Pearson
Background: Lucasfilm Limited is a company founded by George Lucas. Trivia: It is also known for formerly owning the sound system company, THX (spun off from Lucasfilm Ltd. in 2001).
1st Logo
(1973-1988)
Nickname: "The Neon Text"
Logo: On a black background, some neon green text reads:
A
LUCASFILM LIMITED
Production
Variants:
- This logo would often be shown in different languages, depending on the country. This may or may not be in all-caps.
- The first movie with the logo, American Graffiti, had Limited shortened to "LTD", and a slash, with "COPPOLA CO." to the right, and in all caps.
- The first two Indiana Jones movies had an in-credit text with Limited shortened to "LTD".
FX/SFX/Cheesy Factor: None.
Music/Sounds: It would have the 2nd half of the 20th Century Fox fanfare, or the opening music of the movie.
Availability: This was only seen on the FIRST theatrical releases of Star Wars movies 4-6 (with the 20th Century Fox logo) and American Graffitti. It was also seen on pre-1997 home video releases of those films. Sadly, post-1997 prints of them now use the 3rd logo. However, 20th Century Fox Home Entertainment released pre-1997 prints of the Star Wars films on DVD for a limited period of time in 2006.
Scare Factor: Low, but for some, it depends on the Star Wars verison's fanfare generally on how loudly and "poorly" composed it is.
2nd Logo
(1988-1997)
Nickname: "CGI Logo Shining"
Logo: On a black background, we see some gold text that reads:

A
LUCASFILM
Ltd
PRODUCTION
The text is written in a fancy Art Deco font with "A" and "PRODUCTION" in normal font respectively.
FX/SFX: None.
Music/Sounds: Same as the 1st logo.
Availability: Seen on Lucasfilm produced films from the era. The DVD releases of Willow and Tucker: The Man and His Dream have this logo intact, however.
Scare Factor: Low.
3rd Logo
(1997- )
Nickname: "Logo Shining"
Logo: On a black background, we see some green text that reads:

The text is written in a fancy Art Deco font. As it shines, the text changes color to gray and then to gold.
Variant: On Star Wars: The Clone Wars (the 2008 TV series), the logo is sped up.
FX/SFX: The shining and color-changing effects.
Music/Sounds: Same as the 1st logo.
Music/Sounds Variants:
- On TV shows by Lucasfilm, it would have Star Wars-like sounds.
- On The Clone Wars (the 2008 movie), there is Clone Trooper banter.
Availability: Originally seen on Star Wars episodes 1-3 and post-1997 prints of episodes 4-6. It's very likely to be common on every single installment of the Star Wars film saga. Can be seen on the new Indiana Jones movie.
Scare Factor: None.