Structure and components The instrument is composed of light pipes, light pipe rack components, a light intensity regulator, potentiometer knobs, light pipe rack legs, light source switches, power sockets, light source wiring, white screens, and white screen racks. Light pipe design The light pipe is formed by the sleeve connection of the diode holder, the condenser lens tube, and the objective lens tube. The diode holder can rotate and expand inside the condenser lens barrel, and the condenser lens barrel can expand and contract inside the objective lens barrel to adjust the size and definition of the beam spot projected on the white screen. Installation Install the support feet on the light pipe rack and on the white screen. Insert the light pipe into the round hole of the light pipe holder and rotate the ball. Place the white screen about 140 mm away from the beam exit end of the light pipe. Operation and beam adjustment Turn on power and light the light emitting diode. Adjust the position of the diode holder and the condenser lens tube so that the edge of the light spot on the white screen is clear. The three light pipes are adjusted separately. Key benefits Precise control of beam spot size and sharpness is achieved through adjustable diode holder and condenser lens tube. Independent adjustment for each of the three light pipes ensures consistent alignment and performance. Modular design supports easy installation, maintenance, and replacement of components. Adjustable distance to the white screen and expandable/contractible lens assemblies accommodate different screen sizes and focus requirements. Builtin light intensity regulation and straightforward power control provide reliable operation. Use scenarios Optical alignment and calibration in laboratories or classrooms for optical component setup. Demonstrations of beam projection and focus for training sessions or technical presentations. Testing and benchmarking of light sources or diodes in research and development environments.