Its a 1D position sensitive detector. Basically 2 well matched Si photovoltaic cells with a long center tapped resistor opposite creating a bridge. Hammamatsu is the first class maker of a lot of this stuff. They're very researcher/developer friendly and have great apps guys. Office in NE US (Conn IIRC). They made their bones making Japanese camera electro optics. They can help you design your gadget and get you to mass production if that's what you need. This detector was likely make by a chinese supplier as a custom.
Yes, this sounds correct because it's sensing the laser position in 1 dimension perpendicular to those parallel filaments and outputs to a position indicator LED for high, low, or right on respectively. Thank you, this sounds like the information I need! So I just contact Hammamatsu and create a relationship with them to begin designing the components and housings I need?
Anyway, if you need a laser detector, you can use a photodiode and configure it so that the resistance is such that it only activates with the laser's light power, and this way, you avoid complications. With a simple Arduino code, you will achieve this. https://how2electronics.com/laser-light-security-system-using-arduino/ This post might be helpful, but there are many projects like this. You just need to configure the LDR to a value that only activates when the laser is hitting directly on it. The problem is that too strong a light source could activate this module, so I recommend making an enclosure that can hold the LDR with a hole for the laser to enter, making sure that you focus directly on that spot.
Yes my initial design and Idea was to use a housing with mirrors to direct the lased line towards three different photodiodes in the high, right on, and low positions but then I reverse engineered this technology that is already used for a similar function and found this component in there and wondered what it is. I think Jwet is leading me into the direction I'm looking for, thank you for your help though.