[chbot] Help identify a Quad Laser Diode - chocolate micro-fish challenge.

[Mark Atherton]

Hello All,

I was recently given a laser assembly from a colour photocopier; the 
unit houses four laser diodes.

Each diode was packaged much as attached image, but with six connections.

All six wires headed off to an AK2557 IC - a 4 channel laser Diode 
Driver, with automatic power control.

Connections appear to be Common, Detector Diode, LD1, LD2, LD3 and LD4.

The AK2557 datasheet refers to '4-beams LD', yet there are no preferred 
parts.

So I am interested in finding a part-number for one of these quad-LDs; 
efforts so far have failed.

Any help appreciated.

Thanks,

Mark




-------------- next part --------------
A non-text attachment was scrubbed...
Name: LD.jpg
Type: image/jpeg
Size: 3480 bytes
Desc: not available
URL: <http://lists.ourshack.com/pipermail/chchrobotics/attachments/20221004/37e9a70b/attachment.jpg>