Jump to content


Photo

exploding a light bulb (safely)


  • Please log in to reply
3 replies to this topic

#1 Andre LeBlanc

Andre LeBlanc
  • Basic Members
  • PipPip
  • 51 posts
  • Other
  • Los Angeles

Posted 27 March 2008 - 03:36 AM

Hello all,

I've seen numerous slow-motion videos on youtube of light bulbs exploding. Sometimes it's obvious how they're doing it, and other times it isn't. Is there a way to explode a light bulb safely, when it's still on? This is for a specific effect I'm trying to do of a typical lamp shade light bulb exploding-- say 60 watts. Anyone ever seen this done, or done it themselves? Any info greatly appreciated!
  • 0

#2 Hal Smith

Hal Smith
  • Sustaining Members
  • 2280 posts
  • Cinematographer
  • OKC area

Posted 27 March 2008 - 08:57 AM

Is there a way to explode a light bulb safely, when it's still on? This is for a specific effect I'm trying to do of a typical lamp shade light bulb exploding-- say 60 watts. Anyone ever seen this done, or done it themselves? Any info greatly appreciated!

Haven't done it but I'll bet a BB gun would do the job without endangering crew. I can hit a tin can from 125' with a kid's Daisy Red Rider BB gun. I doubt if a BB gun would break a proper halogen bulb from any distance but household style bulb is pretty flimsy. Anyone within 15 feet or so of the bulb should probably wear eye protection gear just in case. If the camera's in close it probably wouldn't hurt to put it behind protective shielding with a window for the lens with an piece of good quality glass protecting the lens itself. Best quality glass would be a UV filter or optical flat but a good piece of flat water glass would probably work.

Have a look at Ron Dexter's website, http://www.rondexter.com . It wouldn't surprise if he's got some good ideas there. If not, Ron's pretty good at answering emails with clear questions. Don't email him and ask "How do I make a movie?", he'd probably answer that one with: "Have a 100 million dollars in the bank".
  • 0

#3 Leo Anthony Vale

Leo Anthony Vale
  • Basic Members
  • PipPipPipPip
  • 2010 posts
  • Other
  • Pittsburgh PA

Posted 27 March 2008 - 02:26 PM

Haven't done it but I'll bet a BB gun would do the job without endangering crew.


A squirt gun with ice water might do.

Probably shooting from behind and below so that the bulb masks the stream.

& give the bulb a chance to heat up.
  • 0

#4 Kevin Zanit

Kevin Zanit
  • Sustaining Members
  • 1223 posts
  • Cinematographer
  • LA

Posted 27 March 2008 - 02:39 PM

We've always done it with a pellet gun or a 'sweeny' gun depending on the look we want. The sweeny gun uses a marble to shoot it. You really need to be extra careful with eye protection because the tiny glass shards can go EVERYWHERE and far.

Also, experimenting with the different angles to shoot the bulb with have an effect on how it looks.

Kevin Zanit
  • 0


Technodolly

Wooden Camera

Rig Wheels Passport

CineLab

Paralinx LLC

Visual Products

Abel Cine

CineTape

Aerial Filmworks

FJS International, LLC

Broadcast Solutions Inc

Willys Widgets

Metropolis Post

Ritter Battery

Media Blackout - Custom Cables and AKS

New Pro Video - New and Used Equipment

Tai Audio

Glidecam

The Slider

rebotnix Technologies

Gamma Ray Digital Inc

CineTape

The Slider

FJS International, LLC

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

Willys Widgets

New Pro Video - New and Used Equipment

Gamma Ray Digital Inc

Glidecam

rebotnix Technologies

Abel Cine

Visual Products

CineLab

Technodolly

Paralinx LLC

Ritter Battery

Aerial Filmworks

Broadcast Solutions Inc

Metropolis Post

Wooden Camera

Tai Audio