Focus finding and alignment using a split linear mask

Details for Australian Patent Application No. 2009230797 (hide)

Owner Canon Kabushiki Kaisha

Inventors Arnison, Matthew R.; Pham, Tuan Quang

Agent Spruson & Ferguson

Pub. Number AU-B-2009230797

Filing date 28 October 2009

Wipo publication date 12 May 2011

Acceptance publication date 9 June 2011

International Classifications

G02B 27/40 (2006.01) Other optical systems - Optical focusing aids

G02B 7/04 (2006.01) Mountings, adjusting means, or light-tight connections, for optical elements - with mechanism for focusing or varying magnification

G03B 3/10 (2006.01) Focusing arrangements of general interest for cameras, projectors or printers - Power-operated focusing

Event Publications

19 November 2009 Complete Application Filed

12 May 2011 Application Open to Public Inspection

  Published as AU-B-2009230797

9 June 2011 Application Accepted

  Published as AU-B-2009230797

6 October 2011 Standard Patent Sealed

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