Camera with magnetic recording apparatus wherein relative positions of a magnetic and a recording head are set with precision
US5430512A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Sep 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a camera using a film with a magnetic recording portion, two film guide members restrict displacement of the film in a direction perpendicular to the moving direction of the film, and a magnetic head magnetizes the magnetic recording portion of the film. A magnetic recording current is output to the magnetic head at a predetermined magnetic recording density D. The magnetic recording density D satisfies EQU D.ltoreq.K.l/(.DELTA./W) where l is the length of each of the film guides, .DELTA. is the difference between the width of the film the distance between the two guide members, W is the width of a recording medium of the magnetic recording portion, and K is a constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.