Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

I'm torn over which to get!

TheMonk

New member
Joined
Aug 29, 2007
Messages
750
Likes
19
Points
0
I have the Alpha 105 and Pyro in mind as well.

I asked DG to post a 120 second (duty cycle) power graph for the Pyro in their forums.

Here is the 20 second version power graph for the Pyro from DG web site.  :eek:

 
 

Attachments


Joined
Nov 8, 2006
Messages
656
Likes
67
Points
0
Hi Monk,
I wouldn't put too much into this graph, except than a lasers output was measured on 1/09/2007.

Speaking from the experience of measuring output vs time on 1000's of lasers from many manufacturers, the shape of the plot produced from a pointer is as individual as the person buying it, they are all different in shape, even from run to run on the same laser the plot will change some. So unless you're buying the laser that produced this chart, it doesn't mean much.

I can say that this is not a typical output plot by any means.
In fact, of all the 1000's of pointers I've tested, none have produced a plot that look anything like this. They will all have some peaks, valleys and flat top spots in them.

The only plots I've seen that are this flat were made with TEC cooled/ controlled lab grade lasers and even then I'm not sure they could produce such a stable output (3.18%), well I suppose a good lab laser to get this amount of stability easy enough over a 20 dsecond period, but I would bet nearly anything that this is an output plot of a good lab laser rather than a battery operated laser pointer.

Jack
 

Rasel

New member
Joined
Sep 3, 2007
Messages
323
Likes
2
Points
0
I agree... something is fishy about that power graph... There's not even a peak spurt then a level out. It just stays stable right there.
 
Joined
Oct 24, 2006
Messages
2,032
Likes
8
Points
0
Agreed also! I dare boast I've tested my fair share of lasers too. Unless thats a diode laser, you're not getting that type of stability without paying a large sum on some good TEC regulation.
 

RobTheVIP

New member
Joined
Apr 16, 2007
Messages
618
Likes
0
Points
0
Bah. Nova charges $50 to have the 3 second delay and dongle disabled, which is quite ridiculous if I may say so.

*Back to the drawing board*
 

LarryQ

New member
Joined
Aug 13, 2007
Messages
726
Likes
3
Points
0
I don't know....

50 bucks to have someone that knows their way around the guts of that laser, remove two safety features, and still retain warranty doesn't seem un-reasonable.

Thanks for that info...!!

I was curious about that mod.


At least I know it can be done...Now to figuire the "How" of it....

LarryQ
 

RobTheVIP

New member
Joined
Apr 16, 2007
Messages
618
Likes
0
Points
0
LarryQ said:
I don't know....

50 bucks to have someone that knows their way around the guts of that laser, remove two safety features, and still retain warranty doesn't seem un-reasonable.

Thanks for that info...!!

I was curious about that mod.


At least I know it can be done...Now to figuire the "How" of it....

LarryQ
Nah, it definitely is unreasonable to me, especially to someone who has already bought a product from them ;)
 

TheMonk

New member
Joined
Aug 29, 2007
Messages
750
Likes
19
Points
0
[highlight]Quote from Bob:[/highlight]

Bah.  Nova charges $50 to have the 3 second delay and dongle disabled, which is quite ridiculous if I may say so.

*Back to the drawing board*


It's more than that:

Alpha-Series
Dimensions 23mm diameter x 193mm length
Battery Power Supply 2 [highlight]AA[/highlight] Batteries
Recommended Duty Cycle [highlight]200 sec[/highlight]. ON/20 sec. OFF

X-Series
Dimensions 13mm diameter x 150mm length
Battery Power Supply 2 [highlight]AAA[/highlight] Batteries
Recommended Duty Cycle [highlight]100 sec[/highlight]. ON/10 sec. OFF

The AA rechargeable has capacities of 2650mAh where AAA only has 1000mAh using Duracell as example.  Based on this is using rechargeable batteries the Alpha run time should be twice longer than the X.
 

RobTheVIP

New member
Joined
Apr 16, 2007
Messages
618
Likes
0
Points
0
TheMonk said:
[highlight]Quote from Bob:[/highlight]

Bah. Nova charges $50 to have the 3 second delay and dongle disabled, which is quite ridiculous if I may say so.

*Back to the drawing board*


It's more than that:

Alpha-Series
Dimensions 23mm diameter x 193mm length
Battery Power Supply 2 [highlight]AA[/highlight] Batteries
Recommended Duty Cycle [highlight]200 sec[/highlight]. ON/20 sec. OFF

X-Series
Dimensions 13mm diameter x 150mm length
Battery Power Supply 2 [highlight]AAA[/highlight] Batteries
Recommended Duty Cycle [highlight]100 sec[/highlight]. ON/10 sec. OFF

The AA rechargeable has capacities of 2650mAh where AAA only has 1000mAh using Duracell as example. Based on this is using rechargeable batteries the Alpha run time should be twice longer than the X.
The reason it is 100 and 200 seconds is due to heatsinking. I would buy the Alpha, but with the $50 for disabling the 3 second delay, it isn't worth it. :'(
 




Top