Terms and Definitions
When moving the reticle out of the focal plane of the objective lens, the shape of the emerging beam will change:• Moving the reticle away from objective lens will result in a convergent beam. The image of the reticle is real and projected at a finite distance.
• Moving the reticle toward the objective lens will result in a divergent beam. If the beam diverges, a virtual image is produced at the apparent crossing point of the beam rays. This point is also located at a finite distance.
This adjustment of the collimator is known as finite distance setting.
The main components of a standard collimator (infinity setting) are:• Tube mounted objective lens
A focusing collimator (finite distance setting) is similarly built. However, the reticle adapter is mounted on a draw out tube for focusing adjustment.
|Standard reticle adapter including one reticle at choice.|
|RC = Reticle changer with 4 positions. Four reticles at choice included.|
RC/FC = Reticle changer with 4 positions. Four reticles at choice are included.
Filter changer with 4 positions. One green and one white diffuser are included. Further filters on request.