Image blur compensating telephotographic lens

Details Image blur compensating telephotographic lens Image blur compensating telephotographic lens

1989-11-17

1992-06-16

Arnold, Bruce Y.

Optical: systems and elements

Image stabilization

By movable refractive structure

359745, G02B 964, G02B 2764

Patent

active

051219786

ABSTRACT:
An image blur compensating telephotographic lens has four lens groups. The four lens groups comprise a first lens group having a positive power, a second lens group having a negative power, a third lens group having a positive power, and a fourth lens group having a negative power arranged in this order from an object side. In one embodiment, the telephotographic lens has a lens moving mechanism for moving the second lens group in a direction vertical to the optical axis in order to compensate for an image blur when a photograph is taken. In another embodiment, the telephotographic lens has a lens moving mechanism for moving the third lens group in a direction vertical to the optical axis in order to compensate for an image blur when a photograph is taken.

REFERENCES:
patent: 4844602 (1989-07-01), Kitagishi et al.
Copy of English language abstract of JP63-201,623.
Copy of English language abstract of JP 63-201,624.
Copy of English language abstract of JP 63-201,622.
Copy of English language abstract of JP 63-202,714.

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