DETACHABLE ZOOM LENS ASSEMBLY

• US 20050237625A1
• Filed: 04/27/2004
• Published: 10/27/2005
• Est. Priority Date: 04/27/2004
• Status: Active Grant

• Current Assignee: E-Benk Tech Co., Ltd.
• Original Assignee: E-Benk Tech Co., Ltd.
• Inventors: Wei, David
• Granted Patent: US 6,967,790 B2
• Time in Patent Office: Days
• US Class Current: 359/676
• CPC Class Codes: G02B 27/08 Kaleidoscopes
• CPC Class Codes: G03B 11/00 Filters or other obturators specially adapted for photographic purposes

Abstract

A detachable zoom lens assembly includes a holder base, which has an insertion slot in the periphery and a light path through the two ends, a coupling structure for coupling the holder base to a photographic apparatus, a special effect unit detachably inserted into the insertion slot to hold a special effect lens in the light path, and a zoomer coupled to the front end of the holder base to hold a zoom lens for changing the focus of incident light.

Claims

1. A detachable zoom lens assembly comprising:

a holder base, said holder base comprising a first end, a second end, a light path extending through said first end and said second end, and an insertion slot in the periphery thereof between said first end and said second end;

a special effect unit, said special effect unit comprising a special effect lens, and an open frame holding said special effect lens, said open frame being insertable into said insertion slot of said holder base to hold said special effect lens in said light path; and

a zoomer, said zoomer comprising a casing coupled to the first end of said holder base, and a zoom lens mounted in said casing in axial alignment with said light path of said holder base.

2. The detachable zoom lens assembly as claimed in claim 1, wherein said special effect lens is a prism adapted to deflect light and to produce a special image effect.

3. The detachable zoom lens assembly as claimed in claim 1, further comprising a coupling structure adapted to couple said holder base to a photographic apparatus, said coupling structure comprising a ring, a cap capped on said ring, and a packing rubber mounted in between said ring and said cap.