How do you extract each optic from the PHR-803T?

[KumoBlade]

Hi. I've bought a few PHR's and have broken at least 1 or 2 optic each time i try to pull out the optics, especially the turning mirror. can someone tell me how to pull each optic out without breaking some part of it?

 

[charliebruce]

I personally use a set of mini-screwdrivers - one very narrow, sharp tool is used to push out the optics, using their glued "removal holes" and removing the metal holding-pieces with a sharp, short flat-head screwdriver. The turning mirror is removed by levering, using one of the hexagonal edges of my screwdriver, and the two round lenses are removed by prying with a screwdriver. The diffraction gratings can be pushed out with a slot-headed, very fine screwdriver, after their metal "frames" have been removed.

EDIT:

 

[KumoBlade]

thanks, but just one more question.. there are diffraction gratings in this thing?

 

[billg519]

As Charlie said above, the diffraction gratings can be removed with a jeweller's screwdriver after their metal locking frame is pried out. If you really need to pry at an optic, try to use a round tootpick or similar object that won't chip the edges of the glass. The glue does let go, just have to be careful.

 

[charliebruce]

Diffraction gratings are in the two plastic inserts, removed at 1:54 on the second video.

 

[alanbrito]

Sorry to bring a thread back from the dead, but what part is removed in the first video at 3:45? I found the diffraction gratings, but I wanna keep everything else as is for my build.

 

[Things]

I believe that thing is some sort of LCD based beam splitter? I'm not sure, but it has electrical connections similar to a LCD.

 

[3zuli]

look at this thread: http://laserpointerforums.com/f49/whats-41387.html

 

[HIMNL9]

It's an LCD "mask" made with concentric segments ..... not sure if is a sort of beam corrector, or how exactly is driven, anyway ..... it have its own electronic (the small silicon square "glued" on the connection ribbon is an LCD driver IC), so probably is drived in realtime from the main driver IC via a serial bus signal ..... just wondering, here .....

Anyway, seem that this LCD does not have its own polarizers (normals LCD panels have two polarizers, rotated at 90 degrees, one on the front and one on the back), where instead there is something like a "wave plate filter" glued on one face, so also driving it, you cannot see any result (if not using an external polarizer) ..... i suspect that these concentric sections are used for change the polarization plane of the light that pass through it, but about why exactly, i'm not completely sure .....


EDIT: 3zuli just beatened me in speed

 

[alanbrito]

Interesting, thank you guys so much. I didn't think of searching since my search terms were "what's this"... didn't think that would turn out any results. I did see the electronics; I thought it might have been some sort of filter or polarizer but the electronics told me otherwise. Interesting, though.

I guess I would like to remove that too. I wanna see how much power I can get out of the diode and optics as they are. I will remove the gratings, but this LCD mask might be harder to get rid of, since I wanna keep the optics in place and removing it means removing the actuator/coils assembly, which means, further misalignment.