Data print unit for non-removable-film camera
US5630177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1993 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jan 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/243
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a data print unit (40), a lower frame (50) and an upper frame (60) are assembled into a single unit by retaining tabs, shafts (71) and (81) of a year-month data indicator wheel (70) and of a day data indicator wheel (80) are inserted from the outside surface of upper frame (60), and print data plates (75) and (85) are fixed to the ends of shafts (71) and (81) from the outside surface of lower frame 50 by press fitting flanged insertion pins (78) and (88). A light-emitting diode (91) and a reflecting mirror that reflects the light beam emitted from light-emitting diode (91) and projects it on the rear surface of the film via light transmission holes (53a) and (53b) are built into the sandwich structure of lower frame (50) and upper frame (60). Translucent year-month data sections are formed on data plate (75) and translucent day data sections are formed on data plate (85). The year-month data indicator wheel (70) and data plate (75) can be replaced without separating the relatively high cost assembled unit, and the data plate can be attached and removed relatively easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.