Search found 4 matches

by Wells_C
Wed Nov 09, 2016 12:33 pm
Forum: General Holography
Topic: Feasibility of retrofitting DPSS lasers with more powerful pump diodes?
Replies: 2
Views: 2667

Re: Feasibility of retrofitting DPSS lasers with more powerful pump diodes?

I'm no expert, but I seem to remember a section on the topic in Sam's Laser FAQ that addresses this issue. My recollection is that certain parts of the laser, specifically the resonator and doubler crystals, are probably designed with the existing power input limits in mind, and may not be able to w...
by Wells_C
Fri Feb 26, 2016 3:18 pm
Forum: Off Topic
Topic: electronics help needed
Replies: 11
Views: 12086

Re: electronics help needed

Ah, I see. then you're right, more volts needed :)

W
by Wells_C
Fri Feb 26, 2016 2:41 pm
Forum: Off Topic
Topic: electronics help needed
Replies: 11
Views: 12086

Re: electronics help needed

Hi Joe, You may be able to simply lower the series resistance and get more current. LEDs typically drop a constant voltage across their leads, around 1.5 volts. Subtract that from total circuit voltage, then use V=IR to calculate how much resistance to use to keep the LED under its rated max. curren...
by Wells_C
Sun Jan 24, 2016 9:27 pm
Forum: Beginning Holography
Topic: Newb(?) question about perceived depth
Replies: 4
Views: 2930

Re: Newb(?) question about perceived depth

I think transmission holograms of room scenes would be the closest thing to what you describe. Check out this video of the work of Paula Dawson, the bit where they look at the reflection of the car in the mirror (at 2:11) in the opposite room is particularly striking. https://www.youtube.com/watch?v...