| 摘要 |
<p>PURPOSE:To form an object image on all of an image formation face without defocusing by correcting the attitude variance of a reflecting means due to camera shake to satisfy a specific condition and holding the reflection means in the attitude before the camera shake. CONSTITUTION:If an afocal lens group 1, an image forming lens group 2, and an image pickup element 3 are turned at an angle rhor around the turning shaft of a reflection mirror 4 and are displaced to positions 1', 2', and 3' by camera shake rhor in the vertical direction on the way of image pickup of an object 16, optical axes 0'1 and 0'2 of the lens group 2' are deviated at the angle rhor from optical axes of the lens group 1 and the lens group 2. Therefore, light 17 from the object 16 which is made incident on the lens group 1 along an original optical axis 01 is inclined at the angle rhor from its optical axis O'. When the reflection mirror 4 is turned at an angle theta by the camera shake, the reflection mirror 4 is turned to satisfy relations theta=(2-r).rhov. Thus, deflection of the image of the object 16 due to the camera shake is prevented.</p> |
