Konica Corporation

Konishiroku Photo Industry Co., Ltd.

Hideaki Haraga

Atsuo Ezaki

Syoji Matsuzaka

Toshihiko Yagi

Kuniaki Uezawa

Keisuke Tobita

Koji Tashiro

Miki Kon

Yutaka Kaneko

Kaoru Onodera

Yuichi Atarashi

Tawara Komamura

Hiroshi Takada

Toshifumi Iijima

Noritaka Nakayama

Masaru Iwagaki

Hidetaka Ninomiya

Eiichi Sakamoto

Hiroshi Shimazaki

Kiyoshi Yamashita

Yoshitaka Yamada

Hiroshi Ikeda

Hiroshi Kibayashi

Shinri Tanaka

Satoru Shimba

Shuri Mizoguchi

Masami Fujita

Kiyoaki Hazama

Tadanobu Sekiya

Takao Hosaka

Yasushi Irie

Hiroaki Takano

Hideo Akamatsu

Ken Ishida

Kouji Tashiro

Kenji Michiue

Naoshi Kunieda

Takashi Kamio

Michiko Nagato

Hiroyuki Iizuka

Kazuhisa Aratame

Kijiro Suzuki

Kei Kaneiwa

Katsutoyo Suzuki

Hiroshi Ideda

Jun Kitahara

Yoshihide Urakawa

Yoshichika Noda

In a lens-fitted film unit provided with an unexposed film having an ISO sensitivity Sviso; a lens having a fixed focal length of f (mm) and a fixed f-number F; a shutter having a fixed shutter speed T (sec); a system sensitivity index S is larger than 0 and not larger than 4.5; wherein the system sensitivity index S is represented as follows: S&equals;EV value Ev&minus;Film sensitivity index Sv, Ev&equals;3.32 log (F /T) Sv&equals;3.32 log (0.3&times;Sviso)

Lens-fitted film unit

A lens-fitted film unit including a main body; a photographic film, pre-loaded in the main body; an electronic flash unit; a shutter unit; a camera lens; and a diaphragm. In the lens-fitted film unit, a guide number of the electronic flash unit, a T-number determined from the camera lens and the diaphragm and a shutter speed of the shutter unit are determined so that A is not more than 8.5 when A represents an EV value of a reference exposure amount of the lens-fitted film unit under a stroboscopic photographing state minus 1.5; and intensity of a latent image, formed on the photographic film under the condition that a reference reflection panel being placed at a predetermined distance between 2-3 m from the lens-fitted film unit is illuminated by the electronic flash unit without other lights in the stroboscopic photographing state, corresponds to intensity of a latent image obtained under a photographing condition of photographing luminance not more than A&plus;5.0 in EV value.

Lens-fitted film unit with a built-in electronic flash unit and image forming method based on a photographic film exposed by the lens-fitted film unit with a built-in electronic flash unit

A silver halide light sensitive color photographic material is disclosed, comprising a support and at least a light sensitive silver halide emulsion layer which comprises a silver halide emulsion and a coupler, the photographic material further comprising a luminance component information recording layer.

Silver halide light sensitive color photographic material

An image forming method is disclosed, wherein a photographic element comprising a support having on at least one side thereof at least a photographic component layer containing light sensitive silver halide is subjected to exposure and photographic processing to form a dye image, in which the photographic processing is allowed to be completed, while the residual silver content in the photographic element is 5% or more; image information in the visible light wavelength region, in which the dye image has absorption, and image information in the invisible light wavelength region are read, and the obtained image information is further subjected to image processing to reduce noise due to the residual silver.

Image forming method

A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a transparent support having on one side thereof a cyan dye-forming coupler-containing red-sensitive silver halide emulsion layer, a magenta dye-forming coupler-containing green-sensitive silver halide emulsion layer, a yellow dye-forming coupler-containing blue-sensitive silver halide emulsion layer, a non-light-sensitive hydrophilic colloid layer and an invisible light-sensitive silver halide emulsion layer containing a dye forming coupler, a colored coupler or a DIR compound.

Silver halide color photographic light-sensitive material

A method to recover the resources incorporated in a photographic material is disclosed. An exposed silver salt light-sensitive photographic material is subjected to color development processing; the obtained image information is optically read; digital image information is obtained by converting the read information to electrical signals, and the resulting image information is recorded on a recording medium, and resources incorporated in a photographic material is recovered from the processed photographic material.

Resources recovery method in a silver salt photographic system

A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a red-sensitive layer, a green-sensitive layer and a yellow dye-forming blue-sensitive layer, wherein the photographic material satisfies a specified relation, which is concerned with latent image keeping thereof. Further, at least one light-sensitive layer of the photographic material comprises a silver halide emulsion layer containing internally reduction-sensitized silver halide grains.

Silver halide light-sensitive color photographic material

The present invention describes a silver halide color negative photographic light-sensitive material having an improved graininess and an excellent image quality even when picture-taken under various light sources each having a color temperature different from daylight. A silver halide color photographic material comprises a light-sensitive layer unit containing a red-sensitive silver halide emulsion and a cyan coupler, a light-sensitive layer unit containing a green-sensitive silver halide emulsion and a magenta coupler, and a light-sensitive layer unit containing a blue-sensitive silver halide emulsion and a yellow coupler, wherein RMS granularity of at least one of the light-sensitive layer units has the following relations;

Silver halide color negative photographic light sensitive material

A silver halide photographic light-sensitive material is disclosed which comprises a support and, provided thereon, a silver halide emulsion layer comprising silver halide grains having a surface phase and an internal phase adjacent to said surface phase. The internal phase has a thickness of 100 .ANG., and the silver iodide content of the surface phase is higher than that of the internal phase.

Silver halide photographic light-sensitive material having a high

A silver halide color photographic light-sensitive material of which the color reproducibility and printing suitability are kept improved against the variation of photographing conditions, such as a change in light source, is disclosed. The photographic material comprises a support and provided thereon a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, wherein at least one of said emulsion layers is of three-layer structure comprising a low-speed elemental emulsion layer, a medium-speed elemental emulsion layer and a high speed emulsion layer arranged in this sequence from the side facing the support, and a maximum color density of said medium-speed emulsion layer is not more than 0.35.

A silver halide color photographic light-sensitive material improved in graininess, comprising a support having thereon a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, wherein at least one of the red-sensitive emulsion layer and the green-sensitive emulsion layer has the three-layered structure, in which the low speed silver halide emulsion layer, medium speed silver halide emulsion layer and high speed silver halide emulsion layer are coated on the support in this order; and the coating amount of silver in the layer increases in the order of the medium speed layer, low speed layer and high speed layer.

Silver halide color photographic light-sensitive material having a wide

A silver halide reversal photographic light-sensitive material is disclosed, which is improved in color reproducibility and gradation. The photographic material comprises a support having thereon a photographic component layers including at least two silver halide layers and a DIR layer. At least one of the emulsion layers comprises at least two silver halide emulsion layers which are substantially the same in color-sensitivity and different from each other in speed. The DIR layer contains a DIR compound and a silver halide emulsion and does not substantially contribute for any image formation.

Silver halide reversal photographic light-sensitive material

A silver halide photographic material is disclosed which comprises a support coated with photographic layers including one or more silver halide emulsion layers, at least one of said silver halide emulsion layers containing silver halide grains with a silver iodide content of 3.0-15 mol %, and at least one of said photographic layers containing a compound represented by the following general formula (I): ##STR1## where Y is an aromatic group or a 5- or 6-membered heterocyclic group.

Silver halide photographic material that is resistant to fogging during

Growing community of inventors

Hino, Japan

Hideaki Haraga