Based on the calculations of the beam I was looking with my supervisor and the production manager for a practical space where it was possible to install the modified PAR lamp measurement setup. After some discussions about different spaces with the production manager we found a storeroom which had the best size for the setup. It was a room with a size of about 2 x 2 meter (6.562 x 6.562 ft). My supervisor talked with the president of the company about this room if I could use it.

After this was approved I had to look for a canvas as the reflection wall for the measurement setup. My supervisor gave me the hint that there was one canvas in the company which nobody used. I inspected this canvas and the size to see if it was suitable for the room. Unfortunately it was too big, but two co-workers who had the responsible for the facilities work suggested that they could install a lightweight construction wall and coat it with white indoor paint instead of the canvas. This extra wall was necessary because I needed a reflection wall which was one meter (39.37 inch) distant from the other wall. So I discussed this suggestion with the production manager and the idea was accepted. After that I instructed the two workers to put suggestion into practice.

Further instructed them to make a window into the front wall so that it was possible to fix the holding of the PAR lamp in the window in order to have a closed setup at a distance of one meter between the lamp and the reflection wall.

Furthermore I instructed an employee from the machine shop to fix the PAR lamp holding into the window.

One of my tasks was that the person who does the measurement has the possibility to read out the beam angle from the screen. Because it is impossible to show the beam angle values with the delivered measurement software I considered a suggestion to make it possible. For that I calculated the distance between the centre and each two degrees of the beam with the following equation.

In these distances of the calculation values I drew four centimeter (1.575 inch) lines one the reflection wall in order that the person who does the measurement can read out the usual values on the screen.

At last I had to install the CCD-camera into the measurement room. For this I used a tripod and installed the camera on it. Than I positioned this setup in a corner of the measurement room and directed the camera on the reflection wall so that the view of the camera sees the maximal beam angle of the horizontal and vertical slice.