Camera with magnetic head for recording information on film
US5481322A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Mar 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera for magnetically recording predetermined information in a magnetic recording area of a film is provided with a magnetic head to be maintained in contact with the magnetic recording area of the film for magnetically recording predetermined information in the magnetic recording area; a power supply holding device for starting power supply by turning on a half-stroke depression switch in response to a half-stroke depression of a shutter release button, holding the power supply at least until the lapse of a predetermined period after the cancellation of the half-stroke depression and terminating the power supply only after the lapse of the predetermined period; and a head contact/retracting device for contacting the magnetic head with the magnetic recording area of the film and retracting the magnetic head from the magnetic recording area; and a controller for controlling the head contact/retracting device in such a manner as to maintain the magnetic head in a contact position in contact with the magnetic recording area during the power supply holding by the power supply holding device, and in a retracted position retracted from the magnetic recording area when the holding of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.