| The first and second lenses operate jointly to concentrate and collimate the incident light beam. |
| The optical train uses two aspherical lenses to collimate and focus the light on the PMT photocathode. |
| The original lens cell is an air spaced semi-apochromatic doublet, which uses three adjustment screws to collimate the lenses in the machined aluminum cell. |
| I need to collimate my telescope so that the images are clearer. |
| Developed and injection moulded in optical quality PMMA, these lenses collimate an optical beam emitted by a cluster or group of 4 to 12 high power leds. |
| Boron is used throughout the experiment, for neutron shielding and to collimate the beam. |
