Collimator

1. Collimator for testing a camera ( 6 ) with a collimator housing ( 1 ), wherein the collimator housing ( 1 ) has a longitudinal wall ( 8 , 9 ) and two end walls ( 10 , 11 ), wherein the first end wall ( 10 ) has a light source ( 2 ) and the second end wall ( 11 ) has a lens ( 5 ), wherein a reticle ( 4 ) is arranged between the lens ( 5 ) and the light source ( 2 ), wherein the reticle ( 4 ) is arranged in the collimator housing ( 1 ) obliquely to the lens ( 5 ) and/or obliquely to the longitudinal wall ( 8 , 9 ), and wherein the longitudinal wall ( 8 , 9 ) has a mirroring ( 13 ) which is an arrangement of mirrors between the lens ( 5 ) and the camera ( 6 ), in order to guide rays to the camera ( 6 ) which would not hit an entrance pupil of the camera ( 6 ) without mirror optic, wherein the mirroring ( 13 ) extends out of the collimator housing ( 1 ) towards the camera ( 6 ).

2. Collimator according to claim 1 , wherein a diffuser ( 3 ) is arranged between the reticle ( 4 ) and the light source ( 2 ).

3. Collimator according to claim 1 , wherein the camera ( 6 ) is connected to a computer ( 12 ), and wherein the computer is configured to record images taken by the camera ( 6 ) and compare the images with data stored of the reticle ( 4 ).

4. Collimator according to claim 3 , wherein the camera ( 6 ) is adjustable, and wherein the computer ( 12 ) is further configured to store parameters of the camera ( 6 ) and distance to the lens ( 5 ).

5. Method for testing a camera ( 6 ) with a collimator according to claim 1 , comprising the following steps:

the light source ( 2 ) illuminates the obliquely arranged reticle ( 4 );

the camera ( 6 ) captures an image generated by the reticle ( 4 ) through the lens ( 5 );

the camera ( 6 ) is shifted towards or away from the lens ( 5 ), whereby a computer ( 12 ) thereby performs an ACTUAL/NOMINAL comparison.

6. Method according to claim 5 , wherein the light source ( 2 ) shines through a diffuser ( 3 ).