mhakali
0
- Joined
- Aug 3, 2009
- Messages
- 371
- Points
- 28
Hey!
Just thought I'd do a fast recap of a pointer that has been around for a while; FocalPrice's $14.76 green laser pointer that's using 2xAA batteries. First off I would not do a complementary review of this one as an *excellent* one is available here unless I found something to add to it. I did however in my last batch of 5 pointers discover something interesting! But first thing's first.
(Any problems loading the pics in the thread? reply and say!)
Photo of the 5 received pointers:
General properties:
Pointer build quality:
The laser pointer is quite easily dis mountable. You can remove the head and extract the diode with ease. The tube contains of a splittable section allowing for either 1xAA or 2xAA to drive this pointer (excellent if you want to use 1x 14500 3.6V to drive this baby!)
The laser pointer shell is probably judging from the weight aluminum or some other quite light weight material. The surface has a black finish. All in all I would counter kiwijunglist saying that this pointer has a great feel.
The push button is smooth and firm. It has all the required properties of a good laser pointer of this price range!
Beam quality:
The pointer does not have any apparent sign of a IR filter (expected for this price!). The output is raw and mixed IR + green
The beam is fairly tight. I have seen A LOT worse. Then again the buyincoin.com P2 models are tighter
Power output:
I do not have an LPM. But! I have noticed that you now can get two different models of pointers of this one delivered from this batch! I have ordered these before. But this time some of the pointers seemed VERY bright and strong! I could feel a sting on my skin!
I mark my boxes with different markings after examination:
G = Good / Exceptionally good
N = Normal
OK = Passes
Def = Defective
In this batch I got three pointers which got the grade "G" or "G!" as markings. They were extraordinarily bright.
After examining the results I could see that the ones got "G" or "G!" had this distinct difference:
Look closely at the shaft. You will see that one of the pointers has the marking "Green laser pointer" (out of focus) where the other one is blank. All of these getting a "G" grade were blank!
So. I dismounted them. Looking at their diodes:
The two in the middle are the "N" or Normal graded ones. The ones on the side got "G" and "G!".
The middle section was a lot smoother to dismount on the "blank shaft" versions than the regular ones aswell. It seems to be some distinct differences between the models.
Taking them to the test I took a roll of black electrical tape doing a burn test. The "blank" shafted ones' result burnt my black tape! As you can see in the picture below:
The dimmer ones "N" did not:
Just thought it'd be worth mentioning
Is it normal for a 50mW with fair divergence to burn electrical tape btw? I *really* need to get a LPM / LaserBee!
Conclusion:
I think that this laser pointer has an all in all solid build.
After ordering a few I know that you may have to release pressure on the diode "hat" to make the button feel nice to push. This is probably a manufacture fault.
The downsides are that some pointers arriving are dimmer and/or close to DOA. They are so dim so that it's embarrassing the 50mW sticker attached to it
They could also have added a larger heat sink to it. But as for the looks of it this pointer rarely fails. The only time I got it to produce TEM02 / TEM03 beams is when the batteries are about to die. So all in all I suppose they are sufficient for the purpose!
Comments?
Just thought I'd do a fast recap of a pointer that has been around for a while; FocalPrice's $14.76 green laser pointer that's using 2xAA batteries. First off I would not do a complementary review of this one as an *excellent* one is available here unless I found something to add to it. I did however in my last batch of 5 pointers discover something interesting! But first thing's first.
(Any problems loading the pics in the thread? reply and say!)
Photo of the 5 received pointers:
General properties:
- 50mW
- 532nm +-10nm
- They spell "direct" as "orect" on the warning label
- Fairly tight beam
- Runs on AA-batteries
- Allows for 2xAA 1.5V or 1xAA 3.0+V battery w/o modifications!
- Cheap ($14.76)
- Available here
Pointer build quality:
The laser pointer is quite easily dis mountable. You can remove the head and extract the diode with ease. The tube contains of a splittable section allowing for either 1xAA or 2xAA to drive this pointer (excellent if you want to use 1x 14500 3.6V to drive this baby!)
The laser pointer shell is probably judging from the weight aluminum or some other quite light weight material. The surface has a black finish. All in all I would counter kiwijunglist saying that this pointer has a great feel.
The push button is smooth and firm. It has all the required properties of a good laser pointer of this price range!
Beam quality:
The pointer does not have any apparent sign of a IR filter (expected for this price!). The output is raw and mixed IR + green
The beam is fairly tight. I have seen A LOT worse. Then again the buyincoin.com P2 models are tighter
Power output:
I do not have an LPM. But! I have noticed that you now can get two different models of pointers of this one delivered from this batch! I have ordered these before. But this time some of the pointers seemed VERY bright and strong! I could feel a sting on my skin!
I mark my boxes with different markings after examination:
G = Good / Exceptionally good
N = Normal
OK = Passes
Def = Defective
In this batch I got three pointers which got the grade "G" or "G!" as markings. They were extraordinarily bright.
After examining the results I could see that the ones got "G" or "G!" had this distinct difference:
Look closely at the shaft. You will see that one of the pointers has the marking "Green laser pointer" (out of focus) where the other one is blank. All of these getting a "G" grade were blank!
So. I dismounted them. Looking at their diodes:
The two in the middle are the "N" or Normal graded ones. The ones on the side got "G" and "G!".
The middle section was a lot smoother to dismount on the "blank shaft" versions than the regular ones aswell. It seems to be some distinct differences between the models.
Taking them to the test I took a roll of black electrical tape doing a burn test. The "blank" shafted ones' result burnt my black tape! As you can see in the picture below:
The dimmer ones "N" did not:
Just thought it'd be worth mentioning
Is it normal for a 50mW with fair divergence to burn electrical tape btw? I *really* need to get a LPM / LaserBee!
Conclusion:
I think that this laser pointer has an all in all solid build.
After ordering a few I know that you may have to release pressure on the diode "hat" to make the button feel nice to push. This is probably a manufacture fault.
The downsides are that some pointers arriving are dimmer and/or close to DOA. They are so dim so that it's embarrassing the 50mW sticker attached to it
They could also have added a larger heat sink to it. But as for the looks of it this pointer rarely fails. The only time I got it to produce TEM02 / TEM03 beams is when the batteries are about to die. So all in all I suppose they are sufficient for the purpose!
Comments?
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