Optics B/C

User avatar
foreverphysics
Moderator
Moderator
Posts: 494
Joined: May 20th, 2011, 8:41 pm
Division: Grad
State: AL
Location: Deep inside a physics book
Contact:

Re: Optics B/C

Postby foreverphysics » November 7th, 2011, 8:21 am

Does anyone know of a good source for a class 2 green laser?
Ebay. You can get anything from there. Just, y'know, do a little background research on the laser you're planning to buy so it doesn't turn out that it's a piece of trash.
And if I learned anything from my teammate, class 3a lasers are actually better for use in Optics. Just saying. :D
Image
Physics is difficult for 99% of the world's population because they don't understand it. The other 1% know too much.

"Physics is a psychiatrist?"

User avatar
rfscoach
Coach
Coach
Posts: 592
Joined: July 7th, 2008, 4:58 pm
Division: B
State: GA

Re: Optics B/C

Postby rfscoach » November 7th, 2011, 10:46 am

Does anyone know of a good source for a class 2 green laser?
Ebay. You can get anything from there. Just, y'know, do a little background research on the laser you're planning to buy so it doesn't turn out that it's a piece of trash.
And if I learned anything from my teammate, class 3a lasers are actually better for use in Optics. Just saying. :D
You can use class 3a for practice, but they are not allowed in competition.
I am the Lorax. I speak for the trees. I speak for the trees, for the trees have no tongues.

User avatar
smartkid222
Exalted Member
Exalted Member
Posts: 774
Joined: June 22nd, 2008, 8:12 am
Division: C
State: NY
Location: Western Long Island

Re: Optics B/C

Postby smartkid222 » November 7th, 2011, 12:21 pm

Does anyone know of a good source for a class 2 green laser?
http://www.radioshack.com/product/index ... Id=2767643
Image 2008 NY BLG Champ
2010 NY Helicopter Champ

chalker7
Member
Member
Posts: 611
Joined: September 27th, 2010, 5:31 pm
Division: Grad
State: CA

Re: Optics B/C

Postby chalker7 » November 7th, 2011, 12:55 pm

Does anyone know of a good source for a class 2 green laser?
http://www.radioshack.com/product/index ... Id=2767643
Those are really expensive. On amazon you can find a ton of them under 15 dollars, some even less than 5. Just search green laser and browse to find one that looks good.
National event supervisor - Wright Stuff, Helicopters
Hawaii State Director

JSGandora
Member
Member
Posts: 613
Joined: December 25th, 2010, 12:09 pm
Division: C
State: NJ

Re: Optics B/C

Postby JSGandora » November 7th, 2011, 5:29 pm

Is duct tape allowed as a type of tape for securing the device? I don't see why not, but I just want to make sure.

chalker
Member
Member
Posts: 2092
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Optics B/C

Postby chalker » November 8th, 2011, 7:05 am

Is duct tape allowed as a type of tape for securing the device? I don't see why not, but I just want to make sure.

Did you mean to post this in the Optics forum? Perhaps you meant to put it in the Keep the Heat / Thermodynamics forum? If not, what device are you referring to?

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

JSGandora
Member
Member
Posts: 613
Joined: December 25th, 2010, 12:09 pm
Division: C
State: NJ

Re: Optics B/C

Postby JSGandora » November 8th, 2011, 3:17 pm

Ooops, sorry. I don't know how I posted this onto the optics thread. It was meant to go on the Thermodynamics thread. I'll post it there.

buzzbuzz
Member
Member
Posts: 30
Joined: March 4th, 2011, 12:08 pm
Division: C
State: KS

Re: Optics B/C

Postby buzzbuzz » November 10th, 2011, 9:04 pm

Anybody think the cardboard sleeves that are supposed to be on the mirrors will cause problems? I don't think they will allow for very accurate angle measurement. Hopefully most supervisors choose to use some other opaque material, like a sticky note.

Flavorflav
Member
Member
Posts: 1365
Joined: February 5th, 2006, 7:06 am
Division: Grad
State: NY

Re: Optics B/C

Postby Flavorflav » November 11th, 2011, 3:46 am

Anybody think the cardboard sleeves that are supposed to be on the mirrors will cause problems? I don't think they will allow for very accurate angle measurement. Hopefully most supervisors choose to use some other opaque material, like a sticky note.
I hope not. Removing a sticky note is much more likely to move your mirror. I've seen it done with pieces of manila folder which didn't reach the ground, and that appeared to work pretty well.

chalker
Member
Member
Posts: 2092
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Optics B/C

Postby chalker » November 11th, 2011, 6:01 am

Anybody think the cardboard sleeves that are supposed to be on the mirrors will cause problems? I don't think they will allow for very accurate angle measurement. Hopefully most supervisors choose to use some other opaque material, like a sticky note.
I hope not. Removing a sticky note is much more likely to move your mirror. I've seen it done with pieces of manila folder which didn't reach the ground, and that appeared to work pretty well.

You all should check out my official 'tips and tricks' document on the soinc.org Optics page (http://soinc.org/sites/default/files/SO ... 110918.pdf) It shows how to make a simple cover out of old business cards. We spent a lot of time this spring trying to come up with a system that is easy to make, easy to use, and has minimal impact on the ability to utilize tools and such to measure.

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair


Return to “2012 Lab Events”

Who is online

Users browsing this forum: No registered users and 2 guests