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Photographic film unit with lens

A film and lens technology, which is applied in the field of electronic flash devices and photographic film units, can solve problems such as unsatisfactory, and achieve the effects of improving efficiency, high yield, and shortening inspection time

Inactive Publication Date: 2005-05-25
FUJIFILM CORP
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  • 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

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  • Photographic film unit with lens
  • Photographic film unit with lens
  • Photographic film unit with lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] 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.

[0070] 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...

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PUM

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Abstract

A lens-fitted photo film unit in which a film chamber in which an unexposed film is preloaded includes a photographing device including a photographing lens and a shutter mechanism, and an electronic flash device including a flash emitting section , a main capacitor and a flash circuit board, the flash emitting part is driven to emit flash under the action of the shutter mechanism; the main capacitor is used to store charges and prepare to discharge in the flash emitting part; the flash circuit board contains a flash circuit, which controls the main capacitor For the flash emission of the charging and flash emission part, the unit has ISO800 or higher high-speed film to allow the main capacitor to have a correspondingly 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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B7/16G03B9/07G03B15/05G03B19/04G03B27/52H05B41/32
CPCG03B7/16G03B9/07G03B15/05G03B19/04G03B27/521G03B2215/0503G03B2219/045H05B41/32G03B17/00
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