EP0341921A2
Expired / Lapsed
EP
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Camera system
Assignee: Nikon Corp
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Filing: 1989-05-05
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Granted: —
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Expires: 2009-05-05
Abstract
Abstract A camera system has a device for recording an image of a photographing field in a recording medium such as a photographing negative color film, a photometering device for forming a brightness information concerning the brightness of the photographing field, and color information forming device for forming, in accordance with the brightness information, a color information concerning the color of the light from a light source for illuminating the photographing field. The printing process after the development of the image is executed with a suitable control of the printing exposure light quantity in accordance with the color information so that a color print of a good quality can be obtained with a high reproducibility of the color.
Inventors
- 👤 Toshio Sosa
- 👤 Isao Uchida
- 👤 Toru Fukuhara
- 👤 Tadao Takagi
- 👤 Hiroyuki Iwasaki
- 👤 Toshihiro Sato
- 👤 Masaru Muramatsu
- 👤 Kazuto Ohtsuka
- 👤 Tadao Kai
- 👤 Shigeyuki Uchiyama
- 👤 Yoichi Koizumi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 09:48
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/091; G03B7/093; G03B7/097; G03B7/28
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
61 words
A camera system comprising: means for recording the image of a photographing field in a recording medium; photometering means for forming a brightness information concerning the brightness of the photographing field; and color information forming means for forming, in accordance with said brightness information, an information concerning the color of the light from a light source for illuminating said photographing field.
Claim 2
Dependent Claim
61 words
A camera system comprising: means for recording the image of a photographing field in a recording medium; photometering means for forming a brightness information concerning the brightness of the photographing field; and color information forming means for forming, in accordance with said brightness information, an information concerning the color of the light from a light source for illuminating said photographing field.
Claim 3
Dependent Claim
24 words
A camera system according to Claim 1, wherein said photometering means measure the brightness levels of a plurality of regions of said photographing field.
Claim 4
Dependent Claim
51 words
A camera system according to Claim 2, wherein said photometering means forms a plurality of processed informations form the brightness levels of said plurality of regions, including the maximum brightness and the maximum brightness difference, and said color information forming means forms said color information in accordance with said processed informations.
Claim 5
Dependent Claim
44 words
A camera system according to Claim 1, further comprising a flash device for illuminating said photographing field and flash information forming means for forming flash-assisted exposure information, wherein said color information forming means forms said color information in accordance with said flash-assisted exposure information.
Claim 6
Dependent Claim
37 words
A camera system according to Claim 1, further comprising attitude detection means for detecting attitude of the camera during the exposure, wherein said color information forming means forms said color information in accordance with said attitude information.
Claim 7
Dependent Claim
44 words
A camera system according to Claim 1, wherein said color information forming means is capable of forming said color information for each of the photographing frame, said camera system further comprising recording means for recording the color information for each of the photographing frame.
Claim 8
Dependent Claim
40 words
A camera system according to Claim 6, wherein said recording means is capable of recording said color information on a recording medium which is loaded in said camera system and in which said image of said photographing field is recorded.
Claim 9
Dependent Claim
77 words
A camera system comprising: means for recording an image of a photographing field on a recording meidum; photometering means for forming brightness information representing the brightness of said photographing field; color temperature information forming means for measuring the color temperature of said photographing field and forming a color temperature information; print correction information forming means for forming a printing correction information for each of photographing frames in accordance with said brightness information and said color temperature information.
Claim 10
Dependent Claim
77 words
A camera system comprising: means for recording an image of a photographing field on a recording meidum; photometering means for forming brightness information representing the brightness of said photographing field; color temperature information forming means for measuring the color temperature of said photographing field and forming a color temperature information; print correction information forming means for forming a printing correction information for each of photographing frames in accordance with said brightness information and said color temperature information.
Claim 11
Dependent Claim
27 words
A camera system according to Claim 8, wherein said print correction information is an information concerning a color correction to be conducted in the course of printing.
Claim 12
Dependent Claim
66 words
A camera system comprising: means for forming an image of a photographing field on a recording medium; exposure information forming means for forming exposure information concerning the condition under which an exposure is made for each of photographing frames; recording means for recording the exposure information in accordance with the execution of photographing exposure; and invalidating means for producing an instruction for invalidating said exposure information.
Claim 13
Dependent Claim
66 words
A camera system comprising: means for forming an image of a photographing field on a recording medium; exposure information forming means for forming exposure information concerning the condition under which an exposure is made for each of photographing frames; recording means for recording the exposure information in accordance with the execution of photographing exposure; and invalidating means for producing an instruction for invalidating said exposure information.
Claim 14
Dependent Claim
71 words
A camera system according to Claim 10, further comprising: exposure light quantity determining means for determining the quantity of the exposure light in accordance with the brightness of said photographing field, automatic exposure control means for automatically controlling the exposure in accordance with the exposure light quantity determined by said exposure light quantity determining means, and an exposure correction means for correcting the determined exposure light quantity by a predetermined amount.
Claim 15
Dependent Claim
71 words
A camera system according to Claim 10, further comprising mode switching means for switching the operation between an automatic mode in which the exposure light quantity is controlled in accordance with the brightness of said photographing field and the exposure condition is controlled in accordance with the thus determined exposure light quantity and a manual mode in which the exposure condition is controlled in accordance with manually set exposure light quantity.
Claim 16
Dependent Claim
83 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; print information forming means for forming, for each of photographing frames, a print information including a print density information representative of the density of the print image to be obtained from the recorded image and a print color information representative of the color tone of the print image to be obtained; and recording means for recording said print information in accordance with execution of the exposure.
Claim 17
Dependent Claim
83 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; print information forming means for forming, for each of photographing frames, a print information including a print density information representative of the density of the print image to be obtained from the recorded image and a print color information representative of the color tone of the print image to be obtained; and recording means for recording said print information in accordance with execution of the exposure.
Claim 18
Dependent Claim
48 words
A camera system according to Claim 13, wherein said print information forming means includes means for automatically determining said print information in accordance with the exposure information obtained with said photographing field and manually operable correction means for allowing a predetermined change in the automatically determined print information.
Claim 19
Dependent Claim
91 words
A camera system comprising: recording means for recording the image of a photographing field in a recording medium; brightness measuring means for measuring the brightness of said photographing field; flash means for illuminating said photographing field; judging means for judging that said flash means is used in the exposure to said photographing field when said photographing field has a brightness greater than a predetermined brightness level thereby producing an information indicating that the exposure is a daylight flash exposure; and recording means for recording the information produced by said judging means.
Claim 20
Dependent Claim
91 words
A camera system comprising: recording means for recording the image of a photographing field in a recording medium; brightness measuring means for measuring the brightness of said photographing field; flash means for illuminating said photographing field; judging means for judging that said flash means is used in the exposure to said photographing field when said photographing field has a brightness greater than a predetermined brightness level thereby producing an information indicating that the exposure is a daylight flash exposure; and recording means for recording the information produced by said judging means.
Claim 21
Dependent Claim
63 words
A camera system according to Claim 15, further comprising means for detecting, on the basis of the quantity of light from said flash means, the ratio of the quantity of the flashlight to the total illuminating light quantity illuminating said photographing field, and means for forming an information concerning said ratio, said recording means being capable of recording said information concerning said ratio.
Claim 22
Dependent Claim
136 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; color measuring means for forming a color information upon detection of a color tone of a light with which said photographing field is illuminated; flash means for illuminating said photographing field; means for judging, upon detecting that said flashing means is used in the exposure to said photographing field when said photographing field has a brightness greater than a predetermined level, that the exposure is a daylight flash exposure; means for forming, when the exposure has been judged as being a daylight flash exposure, a correction information by adding to said color information an information which represents a change in said color tone caused by the flash light; and means for recording said correction information in said recording medium.
Claim 23
Dependent Claim
136 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; color measuring means for forming a color information upon detection of a color tone of a light with which said photographing field is illuminated; flash means for illuminating said photographing field; means for judging, upon detecting that said flashing means is used in the exposure to said photographing field when said photographing field has a brightness greater than a predetermined level, that the exposure is a daylight flash exposure; means for forming, when the exposure has been judged as being a daylight flash exposure, a correction information by adding to said color information an information which represents a change in said color tone caused by the flash light; and means for recording said correction information in said recording medium.
Claim 24
Dependent Claim
57 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; light-receiving means for receiving light from said photographing field; and means for detecting, from an output of said light-receiving means, the frequency of the light illuminating said photographing field and forming a flicker information indicating the frequency of said light.
Claim 25
Dependent Claim
57 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; light-receiving means for receiving light from said photographing field; and means for detecting, from an output of said light-receiving means, the frequency of the light illuminating said photographing field and forming a flicker information indicating the frequency of said light.
Claim 26
Dependent Claim
19 words
A camera system according to Claim 18, further comprising means for recording said flicker information in said recording medium.
Claim 27
Dependent Claim
76 words
A camera system according to Claim 18, further comprising: means operative in response to the output of said light-receiving means and capable of forming a color information upon detection of the color of a light illuminating said photographing field; means for forming a light sorting information by sorting the type of said light on the basis of said flicker information and said color information; and means for recording said light sorting information in said recording medium.
Claim 28
Dependent Claim
83 words
A camera system comprising: means for recording, in a recording medium, an image of a photographing field including a major photographing object; means for measuring brightness levels of a plurality of regions of said photographing field; means for forming a back light information upon detecting, on the basis of the brightness levels of the respective regions of said photographing field, that said major photographing object is illuminated by a back light; and means for recording said back light information in said recording medium.
Claim 29
Dependent Claim
83 words
A camera system comprising: means for recording, in a recording medium, an image of a photographing field including a major photographing object; means for measuring brightness levels of a plurality of regions of said photographing field; means for forming a back light information upon detecting, on the basis of the brightness levels of the respective regions of said photographing field, that said major photographing object is illuminated by a back light; and means for recording said back light information in said recording medium.
Claim 30
Dependent Claim
108 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; flash means for illuminating said photographing field; means for setting the quantity of light to be emitted from said flash means; means for detecting the quantity of light emitted from said flash means upon an exposure; means for comparing the detected quantity of light from said flash means with the set value of the light quantity set by said setting means and forming a difference information corresponding to the difference between the detected light quantity and the set light quantity; and means for recording the difference information in said recording medium.
Claim 31
Dependent Claim
108 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; flash means for illuminating said photographing field; means for setting the quantity of light to be emitted from said flash means; means for detecting the quantity of light emitted from said flash means upon an exposure; means for comparing the detected quantity of light from said flash means with the set value of the light quantity set by said setting means and forming a difference information corresponding to the difference between the detected light quantity and the set light quantity; and means for recording the difference information in said recording medium.
Claim 32
Dependent Claim
101 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; photometering means for forming a brightness information representing the brightness of said photographing field; means for determining an optimum exposure light quantity on the basis of said brightness of said photographing field; means for computing controlled exposure light quantity from the exposure time and aperture value actually used in an exposure; means for forming a difference information corresponding to the difference between the optimum exposure light quantity and the controlled exposure light quantity; and means for recording said difference information in said recording medium.
Claim 33
Dependent Claim
101 words
A camera system comprising: means for recording an image of a photographing field in a recording medium; photometering means for forming a brightness information representing the brightness of said photographing field; means for determining an optimum exposure light quantity on the basis of said brightness of said photographing field; means for computing controlled exposure light quantity from the exposure time and aperture value actually used in an exposure; means for forming a difference information corresponding to the difference between the optimum exposure light quantity and the controlled exposure light quantity; and means for recording said difference information in said recording medium.
References Cited (Backward Citations)
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