Litleck
New member
- Joined
- May 27, 2019
- Messages
- 5
- Points
- 1
Hello,
For a couple of months now I've been trying to design my first handheld laser and it's been slow. Currently, I have a 445nm 1.8W diode pressed into a small housing and a heatsink which I got both from DTR's laser shop. I'm also using the DTR-3E-B lens since it's the cheapest. I'm don't have any high power resistors for the driver that im using right now so what I have is just an LM317 constant current with no resistor (I know it isn't the best). What I want to do is take the next steps to get this into a handheld form so I won't need my power supply. The beam is also really spread out, and changing the focus doesn't help. There's a strong point in the middle then horizontal lines coming out. I don't know if it's from the cheaper lens or if it's normal.
Thanks.
Diode: On eBay BOGO SALE!!! A140 / M140 A-Type Laser Diode * 445nm * 5.6mm * 1.6W * TO-18 *
I can't post links yet, unfortunately.
For a couple of months now I've been trying to design my first handheld laser and it's been slow. Currently, I have a 445nm 1.8W diode pressed into a small housing and a heatsink which I got both from DTR's laser shop. I'm also using the DTR-3E-B lens since it's the cheapest. I'm don't have any high power resistors for the driver that im using right now so what I have is just an LM317 constant current with no resistor (I know it isn't the best). What I want to do is take the next steps to get this into a handheld form so I won't need my power supply. The beam is also really spread out, and changing the focus doesn't help. There's a strong point in the middle then horizontal lines coming out. I don't know if it's from the cheaper lens or if it's normal.
Thanks.
Diode: On eBay BOGO SALE!!! A140 / M140 A-Type Laser Diode * 445nm * 5.6mm * 1.6W * TO-18 *
I can't post links yet, unfortunately.