Patent attributes
A method of assembling a reticle module comprising a first element and a second element is provided. The method includes the following steps. First, a collimated beam of light shines on a first reticle of the first member and a second reticle of the second member to project an image of the first reticle and an image of the second reticle onto a screen. Thereafter, the projected image of the first reticle of the first element and the projected image of the second reticle of the second element are adjusted to align with each other. Then, the relative position between first and the second element is fixed. The method speeds up the process of assembling a reticle module and ensures both constituent reticles aligned in the same viewing direction.
