Unlock instant, AI-driven research and patent intelligence for your innovation.

Photographic roll film unit mounted with lens and electronic flasher used for the same unit

A technology of electronic flash and film, applied to lighting devices, camera bodies, cameras, etc., can solve problems such as unsatisfactory

Inactive Publication Date: 2005-10-19
FUJIFILM CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this idea is far from ideal since doing so would discharge the main capacitor through this resistor or the LED

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Photographic roll film unit mounted with lens and electronic flasher used for the same unit
  • Photographic roll film unit mounted with lens and electronic flasher used for the same unit
  • Photographic roll film unit mounted with lens and electronic flasher used for the same unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] exist figure 1 Among them, a lens-fitted photo film unit with an electronic flash device is composed of a photo film chamber 1, which contains a shooting mechanism with a simple structure and preloaded film. Usually, the film chamber 1 is covered with a cardboard wrapping 2 . There are some openings on the cardboard cladding 2, and the camera lens 3, the viewfinder 4 and the winding wheel 5 etc. are exposed outside through the openings. The film chamber 1 wrapped by the cardboard wrapping 2 can be used for taking pictures.

[0076] A photographic lens 3 is exposed at the center of the front of the film chamber 1 . The viewfinder 4 is above the camera lens 3. The flash emitting part 6 is on the right of the viewfinder 4 . A button 7a is installed under the flash emitting part 6, which is used to switch on and off the flash charging switch 7 (see figure 2 ). On the top surface of the photo film unit there are: a shutter button 8; a count window 9 for indicating th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A lens-fitted photo film unit, wherein a film chamber equipped with non-exposure film comprises a shooting device comprising a camera lens and a shutter device, and an electronic flash device comprising a flash-emitting section for emitting flash light driven by the shutter device, a main capacitor for storing charge to be discharged in the flash-emitting section, and a flash printed circuit board comprising a flash circuit for controlling the charging of the main capacitor and the flash emitting of the flash-emitting section. The photo film unit is pre-loaded with photo film having speed of ISO 800 or higher, to allow the main capacitor to have corresponding small capacitance.

Description

[0001] This application is a divisional application of Chinese patent application No. 95106022.8. field of invention [0002] The present invention relates to a lens-fitted photo film unit and an electronic flash device for the unit. More particularly, the present invention relates to a lens-fitted photo film unit in which an electronic flash unit is improved in design to accommodate simplification of structure and structure. technical background [0003] Lens-fitted photo film units have been marketed, allowing anyone who wants to enjoy photography to take pictures. This photographic film unit includes a film chamber which includes a simple photographing mechanism and is preloaded with film. There are also various types of photo film units with additional functions: "FUJICOLOR QUICK SNAP FLASH" (trade name; manufactured by Fuji Film Co., Ltd.) models with an electronic flash device included among them. [0004] A flash unit consists of a flash circuit, typically with a ma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G03B7/16G03B9/07G03B15/05G03B19/04G03B27/52H05B41/32
CPCG03B27/521G03B19/04G03B7/16G03B15/05G03B2219/045G03B9/07H05B41/32G03B2215/0503G03B17/00
Inventor 本村克美内山圭司亀山信行今村孝持田光义畑幸次高城纯一
Owner FUJIFILM CORP