Patent · US Expired

Device for macrophotography

US5294948A · kind A · utility

11Cited by

1References

1Claims

0Family size

Assignee

HEINE Optotechnik GmbH & Co. KG · DE

Inventors

Norbert Merkt · Herrsching am Ammersee, DE
Otto H. Schmidt · Herrsching am Ammersee, DE
Anton Schneider · Gilching, DE

Key dates

Filing date	Jul 30, 1991
Grant date	Mar 15, 1994
Priority date	—
Expiry date	Jul 30, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG03B17/12
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A camera apparatus for macrophotography is provided, having an attachment with a fixed lens, a translucent cap removably attached to the subject-side end of the attachment, and a contact disk or spacer ring attached to the subject-side of the cap and which defines a plane which includes the lens focus. The cap preferably is translucent, permitting flashtube light to be directed from the attachment to the target to be photographed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.