Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Safety & Legal Issues



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 10-22-2010, 08:35 PM #1
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Tail Clicky Safety Something To Keep In Mind.

I noticed a while back, and should have posted then..

Most DIY lasers built here are controlled with a 'tail clicky' switch
located to the rear of the laser.

When Loading the battery one should keep in mind that there is
potential for an accident in doing so.

Almost all DIY handhelds are set up with case neg- or +.
The switch isolates the neg-/+ of the battery from the body,
and when the switch is activated the neg-/+ is allowed
to pass through the host body and complete the circuit..

This in mind, there are many host bodies with long springs acting
as the contact. Should this spring be bent while screwing it
on, and touch the battery AND the body at the same time, will
allow the power to flow completing the 'loop' and the laser fires.

I figured this may be worth mentioning considering that class 4's
are becoming so common in handhelds.

As we all know, reflections can also damage eyes instantly
with this kind of power, and is something that we should all keep
in mind with activities as simple as changing your batteries...


A simple fix can be performed with any material that protects
the inside of the host body from allowing such contact.

One way would be to put a piece of thin double sided tape on
the inner walls of the host. Anything that creates a barrier
and is somewhat durable will suffice.

Another idea would be to place some heatshrink tubing over
the spring only allowing the tip to be exposed.

Be safe


__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 10-22-2010, 08:45 PM #2
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

If the spring is too long and could cause a short, bypassing the switch, it's a good idea to simply clip and shorten the spring.
RA_pierce is online now   Reply With Quote
Old 10-22-2010, 08:57 PM #3
Kookapeli's Avatar
Class 3R Laser
 
Join Date: May 2010
Location: North West, UK
Posts: 1,254
Rep Power: 61
Kookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond repute
Send a message via Skype™ to Kookapeli
Kookapeli Kookapeli is offline
Class 3R Laser
Kookapeli's Avatar
 
Join Date: May 2010
Location: North West, UK
Posts: 1,254
Rep Power: 61
Kookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond reputeKookapeli has a reputation beyond repute
Send a message via Skype™ to Kookapeli
Default Re: Tail Clicky Safety Something To Keep In Mind.

Also you could put a dust cap on the end so if it does lase then the beam wont go far
__________________
Never Gets tired of popping baloons, lighting matches and burning thru black plastics bags

Lasers Owned


100mW Rayfoss 532nm
5 mW WL Core 532nm
~130mW Mini Pocket 650
~300mW Cree Q5
~500mW Trustfire TR-801 638
~1.2W Cree Q5 445nm
New LPF'ers Please Read THIS
Where to buy laser components/kits from
I Want to build a Laser
Kookapeli is offline   Reply With Quote
Old 10-22-2010, 09:02 PM #4
Toke's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Copenhagen
Posts: 1,111
Rep Power: 51
Toke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond repute
Toke Toke is offline
Class 3R Laser
Toke's Avatar
 
Join Date: Jul 2010
Location: Copenhagen
Posts: 1,111
Rep Power: 51
Toke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond reputeToke has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

Quote:
Originally Posted by wannaburn View Post
One way would be to put a piece of thin double sided tape on
the inner walls of the host. Anything that creates a barrier
and is somewhat durable will suffice.
I take that "double sided" means the same as "double adhesive"?

It would work, but would cause other problems with battery replacement.


Anyway, you are pointing out a valid concern, anything that shorts the end of the battery to case will set off the laser.
__________________
100mW Odicforce kit.
App. 300mw MiniMag
App 120mW labby
Fan cooled 400mA 12X 405nm flashlight

532nm 150mW Labby.
532nm 50mW in flashlight

1.2W 445nm Yobresal
Basic laser building guide.
Toke is offline   Reply With Quote
Old 10-22-2010, 09:10 PM #5
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

Quote:
Originally Posted by Toke View Post
I take that "double sided" means the same as "double adhesive"?

It would work, but would cause other problems with battery replacement.


Anyway, you are pointing out a valid concern, anything that shorts the end of the battery to case will set off the laser.

Double sided but with the waxy paper still on the exposed side..
Should have elaborated on that..

I would use this over regular tape as the 'waxy' slippery paper
reduces the friction, and is a little more durable over say
electrical tape.

Others have also used this tape (myself included) to pick up
any slack in the battery compartment of pens to eliminate rattle.
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 10-22-2010, 09:14 PM #6
Toaster's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Posts: 1,249
Rep Power: 0
Toaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these parts
Toaster Toaster is offline
Class 3R Laser
Toaster's Avatar
 
Join Date: Aug 2010
Posts: 1,249
Rep Power: 0
Toaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these partsToaster is infamous around these parts
Default Re: Tail Clicky Safety Something To Keep In Mind.

I have accidentally clicked the switch to the "On" position and then twisted the tail cap on, I burned the living piss out of fingers.

Never put your fingers in front while screwing on!!!
Toaster is offline   Reply With Quote
Old 10-22-2010, 09:32 PM #7
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

I have noticed this many times before and it is a real concern. It does not matter if the clicky is off or not it still completes the circuit. I always screw my tailcaps on with the laser pointed at the floor just in case. Never thought of actually posting about it so good call on the tip.
DTR is online now   Reply With Quote
Old 10-22-2010, 09:36 PM #8
BShanahan14rulz's Avatar
Class 3B Laser
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
BShanahan14rulz BShanahan14rulz is offline
Class 3B Laser
BShanahan14rulz's Avatar
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

A bigger concern is the spring shorting the positive button to the negative case. If you use Li-Ions, always ensure that the wrapper is intact and has no cracks or weak points. If it shorts, you'll notice one end of the light getting very very hot. Immediately disassemble, because you may end up with a pipebomb if you leave it shorting out for too long.

I've had all my flashlights case-negative, but now this laser is case positive, I'm throwing away all of my cells that have noncontiguous wraps.

Some lights come with spring-tensioned contact points instead of springs. I wish I could find more of those.
BShanahan14rulz is offline   Reply With Quote
Old 10-22-2010, 09:47 PM #9
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

Quote:
Originally Posted by DTR View Post
I have noticed this many times before and it is a real concern. It does not matter if the clicky is off or not it still completes the circuit. I always screw my tailcaps on with the laser pointed at the floor just in case. Never thought of actually posting about it so good call on the tip.
I am in the habit now when testing a laser the first time out,
I point under my workbench, load the batteries and look for problems.

Also giving a slight shake, moving the cap etc. is a good idea
before handeling it as a safe device.

Even when wearing goggles, unless they sit tight to your face, there
is room for light to get around them. For instance, if you have goggles
on and the laser turns on unexpectedly, the beam hitting your shirt
can allow reflected light to get around the goggles. While this may
not pose a significant danger, better safe than sorry..

Its best to look for flaws in the first few uses where the beam has no
way of reflecting back to your eyes and is in a controlled situation as
possible. Under a table with a wall on the other side works well for
me, but may not for others...

Also, pointing at the floor is safe for the user, but always keep in mind
pets, and shiny hardwood floors or tile.


Quote:
Originally Posted by BShanahan14rulz View Post
A bigger concern is the spring shorting the positive button to the negative case. If you use Li-Ions, always ensure that the wrapper is intact and has no cracks or weak points. If it shorts, you'll notice one end of the light getting very very hot. Immediately disassemble, because you may end up with a pipebomb if you leave it shorting out for too long.

I've had all my flashlights case-negative, but now this laser is case positive, I'm throwing away all of my cells that have noncontiguous wraps.

Some lights come with spring-tensioned contact points instead of springs. I wish I could find more of those.
Also some good points. I havent had a problem with any of my batteries YET

I can only imagine what they are capable of inside of a sealed metal host body
__________________
Recent Projects:
-----

Last edited by JLSE; 10-22-2010 at 09:51 PM.
JLSE is offline   Reply With Quote
Old 10-25-2010, 08:44 PM #10
Bluefan's Avatar
Class 3R Laser
 
Join Date: Aug 2009
Location: The Netherlands
Posts: 1,482
Rep Power: 62
Bluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond repute
Bluefan Bluefan is offline
Class 3R Laser
Bluefan's Avatar
 
Join Date: Aug 2009
Location: The Netherlands
Posts: 1,482
Rep Power: 62
Bluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond repute
Default Re: Tail Clicky Safety Something To Keep In Mind.

That's why I have goggles that sit thight on my face, who knwo what beams you can catch while bending over a setup or in this case unexpected beams.
Bluefan is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 06:50 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC