Constant scale panoramic camera
阅读：383发布：2021-06-02
专利汇可以提供Constant scale panoramic camera专利检索，专利查询，专利分析的服务。并且A method and apparatus are disclosed for maintaining a constant image scale in a panoramic camera by modifying the size of the image at the film in a first direction as a function of the scan angle and in a second direction as that function squared of the scan angle.，下面是Constant scale panoramic camera专利的具体信息内容。
1. A constant scale panoramic camera comprising means for modifying the size of the image at the film in a first direction as a function of the scan angle and in a second direction as the square of said function of the scan angle and including, a first optical system for varying the size of the image in said first and said second directions, and a second optical system for varying the size of the image in said second direction.
2. The camera of claim 1 in which said means for modifying further includes function generator means for driving said first and second optical systems as a function of the scan angle.
3. The camera of claim 2 in which said means for modifying further includes means for sensing the scan angle of the scanning means to drive said function generator as a function of the scan angle.
4. The camera of claim 1 in which said function generator includes means for generating a function of the reciprocal of the cosine.
5. The camera of claim 1 in which said first optical system includes a spherical variable focal length lens system and said second optical system includes an anamorphiC variable focal length lens system.
6. The camera of claim 1 in which said first direction is in the direction perpendicular to the scan direction and said second direction is parallel to the scan direction.
7. The camera of claim 6 in which said function of the scan angle is the reciprocal of the cosine of the scan angle and said function squared is the reciprocal of the square of the cosine of the scan angle.
8. The camera of claim 6 in which said first optical system includes a spherical variable focal length lens system, and said second optical system includes an anamorphic variable focal length lens system.
9. The camera of claim 8 in which said camera includes means for positioning said spherical variable focal length lens system and said anamorphic variable focal length in the camera at a position in which each lens system forms an image along it optical axis.
10. The camera of claim 9 in which said function of the scan angle is the reciprocal of the cosine of the scan angle, and said function squared is the reciprocal of the square of the cosine of the scan angle.
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