Very lucky, considering how good the fit is. OD=1", I bought 5 of these from Mohrenberg, then it was a matter of checking every flashlight everywhere I went - spent a lot of time at Target, for example...:)
Someone smart please comment on the following statement: there is no such thing as an anti-photon. My reasoning is that anti-matter produces light that is indistinguishable from light produced by regular matter. Here is another way of saying this: if some very far away star made out of...
Thanx Jander! I liked your PHR build you did in this host.
The ring doesn't stay on anymore. I had to use a button from a diff red flashlight, and it's a little smaller diameter, so the ring falls off:)
I took pictures side-by-side with my 1st LOC build, also using a glass Aixiz 650 lens. I bought 2 more, and the new ones seem to have more spill. I can make out the shape of the inside of the diode with the 2 pins and the hump in between. Does this mean the back of the new lens is not coated...
HOST: HomeDepot flashlight (2-pack for $5, so $2.5)
HEATSINK: Mohrenberg ($5)
LENS: Aixiz 650nm coated glass ($6)
DIODE: LOC ($10)
DRIVER: LD1117 (70c), two 3 Ohm resistors (20c)
I: 415mA (priceless)
BATT: 2x10440 in series ($5)
MODULE: Aixiz ($2.5)
The HD 2-pack flashlights come in red and...
WRT String Theory: isn't it a great satisfaction to think that the basic building block of the Universe is a vibration of a string? Like a song. Sounds very similar The Silmarillion's creation story.
I can only look at my DIY LOC dot from the incident side. I noticed quickly that on the reflected side there is an extremely bright speckle pattern, even from matte surfaces. I would never point a laser in a manner that would get it reflected toward anyone, or any-cat. There is also speckle...
Thanx everyone for their positive comments! I'm glad you liked this little build:)
spokanedavid, I'm new to many laser things... By scanner are you talking about a 3D laser scanner for making models? I should look into that, sounds like an actual useful thing to do with these lasers:)
I can still solder the OP-amp by hand. That ADC chip would require me to learn a new way of soldering:)
P.S. Is thta Half Dome in your avatar? Seeing must have been great at Yosemite. BTW, what is the 3181253 number for your Solar system location?:thinking: