Method for manufacturing precisely focused collimator
First Claim
1. A method of manufacturing a collimator, comprising the steps of:
- forming a collimator body by using a metal casting process;
measuring any existing displacement of a focal position of the collimator body formed at the forming step with respect to an intended focal position;
determining an adjustment size to minimize the displacement measured at the measuring step;
changing a physical size of peripheral regions of the collimator body according to the adjustment size, determined at the determining step, so as to adjust the focal position of the collimator body.
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Accused Products
Abstract
A method for manufacturing single focus and cone beam collimators with precisely focused focal line or focal point. The method includes the steps of: forming a collimator body by using a metal casting process; measuring a displacement of a focal position of the collimator body with respect to an intended focal position; determining an adjustment size to minimize the measured displacement; adjusting the focal position of the collimator body by changing a physical size of peripheral regions of the collimator body according to the determined adjustment size. In this method, the physical size of peripheral regions of the collimator body can be changed either by cutting or attaching peripheral adjustment portions. Also, the physical size of peripheral regions of the collimator body can be changed to tilt an optical axis of the collimator body. The method should preferably be applied to segments of the collimator body separately.
21 Citations
10 Claims
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1. A method of manufacturing a collimator, comprising the steps of:
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forming a collimator body by using a metal casting process; measuring any existing displacement of a focal position of the collimator body formed at the forming step with respect to an intended focal position; determining an adjustment size to minimize the displacement measured at the measuring step; changing a physical size of peripheral regions of the collimator body according to the adjustment size, determined at the determining step, so as to adjust the focal position of the collimator body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification