公开(公告)号：JPS63305221A

公开(公告)日：1988-12-13

申请号：JP14104287

申请日：1987-06-05

Applicant: MINOLTA CAMERA KK

Inventor： KAWAGOE NOBUKAZU ,  SUGIYAMA MASAMI ,  INABA MASAHITO

IPC: G01J3/46 ,  G01J1/02 ,  G01J3/02 ,  G01N21/47

Abstract: PURPOSE:To improve the reflecting characteristic in a wide wavelength region, by bringing the reflecting surface of an integrating sphere to a diffused reflection surface using a substance showing a flat spectral characteristic and high reflectivity in a visible region. CONSTITUTION:An integrating sphere is formed by bonding an upper semisphere 1-a and a lower semisphere 1-b. Both semispheres 1-a, 1-b are formed by molding and sintering a white resin (tetrafluoroethylene) or white ceramic (aluminum oxide, boron nitride). In colorimetry, the opening 8 of a specimen is brought into contact with the measuring part on the surface of the specimen. The reflected light from the specimen passes through the optical fiber 6 inserted in a light receiving opening and is guided to a light detector not shown in a drawing to be subjected to signal processing. As mentioned above, by bringing the reflecting surface of the integrating sphere to a diffused reflection surface using a substance showing a flat spectral characteristic and high reflectivity in a visible region, the stable illumination of a specimen becomes possible in a wide wavelength range and the measuring accuracy of a colorimetric meter is enhanced.

公开(公告)号：JPS63291302A

公开(公告)日：1988-11-29

申请号：JP12536587

申请日：1987-05-22

Applicant: MINOLTA CAMERA KK

Inventor： KAWAGOE NOBUKAZU ,  SUGIYAMA MASAMI ,  INABA MASAHITO

IPC: G01J3/46 ,  F21V7/22 ,  G03B15/02 ,  G03B15/03

公开(公告)号：JPS62284228A

公开(公告)日：1987-12-10

申请号：JP12901386

申请日：1986-06-02

Applicant: MINOLTA CAMERA KK

Inventor： KAWAGOE NOBUKAZU ,  INABA MASAHITO

IPC: G01J3/28 ,  G01J3/46 ,  G01J3/51

Abstract: PURPOSE:To permit the evaluation of a color with the optional spectral sensitivity set by a user by setting an optional coefft. for every wavelength by a coefft. setting means and calculating the addition value of the products of the coefft. set and the spectrometry value for every wavelength by a calculating means. for sum of products. CONSTITUTION:The user can set the optional weighting coefft. for every wavelength by the coefft. setting means US and the optional user spectral sensitivity can be defined by the set coefft. set. The addition value of the product of the spectrometry value and the coefft. set for every wavelength is calculated in a calculating means SIGMAM for sum of products. The sum of products calculated by the means SIGMAM is the value evaluated by the user spectral sensitivity with the spectrometry values.

公开(公告)号：JPS62284226A

公开(公告)日：1987-12-10

申请号：JP12901486

申请日：1986-06-02

Applicant: MINOLTA CAMERA KK

Inventor： KAWAGOE NOBUKAZU ,  INABA MASAHITO

IPC: G01J3/02 ,  G01J3/28

Abstract: PURPOSE:To obtain a measurement value at a prescribed wavelength and wavelength intervals by making an interpolation calculation of the measured value at the prescribed wavelength from the values for the peak wavelengths of the spectral sensitivities of respective spectral detectors and the measured values of respective photodetectors. CONSTITUTION:The peak wavelengths of the respective spectral detectors combined with optical band-pass filters and photodetectors are stored in a 1st memory means PK. The measured values of the respective photodetectors are stored in a 2nd memory means CM3. The measured value at the prescribed wavelength is subjected to the interpolation calculation from the memory contents of the 1st memory means PK and the memory contents of the 2nd memory means CM3 in an interpolation calculation means INTP. The spectrometry value at the prescribed wavelength is, therefore, obtd. even if there is the variance in the peak wavelengths of the respective spectral detectors.

公开(公告)号：JPH04274716A

公开(公告)日：1992-09-30

申请号：JP3625291

申请日：1991-03-01

Applicant: MINOLTA CAMERA KK

Inventor： INABA MASAHITO ,  OSUGI HITOSHI ,  FUKUDA MASAHIRO

IPC: G01J3/51

Abstract: PURPOSE:To improve the correcting accuracy and to reduce the instrumental error by dividing the color space into a plurality of areas and performing correction for each area. CONSTITUTION:This photoelectric chromaticity meter is provided with a plurality of spectral sensors comprised of optical filters F1-F6 and photoelectric converting elements P1-P6. A plurality of reference samples in each of a plurality of areas divided in the color space are measured by the spectral sensors. A correcting coefficient is obtained so that the sum of the color difference between the measured value and the reference value of the reference sample is minimum for every area, which is in turn stored in a correcting coefficient memory means 8. Taking the correcting coefficient into consideration for tone measured value of an object to be measured, the measuring result is operated by an operating means 7.

公开(公告)号：JPH01271740A

公开(公告)日：1989-10-30

申请号：JP5248489

申请日：1989-03-02

Applicant: MINOLTA CAMERA KK

Inventor： YUASA YOSHIO ,  YASUMOTO HIDETOSHI ,  NARUSE KAZUHIKO ,  KAWAGOE NOBUKAZU ,  INABA MASAHITO

IPC: G03B27/73

Abstract: PURPOSE:To easily obtain the best printing data by displaying a color slurring direction from a hue based on the printing data of a hue based on the selected printing data. CONSTITUTION:A user sequentially performs printing based on three kinds of data on light emitting quantity such as set data on light emitting quantity with which the nearly best print can be obtained, the data of over exposure side which is a little larger than the set data and the data of under exposure side which is a little smaller that the set data. Then he selects the print which is the closest to the best print from three printed results and resets the data on the light emitting quantity at the time of performing printing which is the closest to the best as the data on light quantity for the best print in a setting device. A display device 29 displays, at such a time, what value is outputted. For example, when the user judges that exposure is reduced so as to be on the under exposure side according to the printed results, he performs printing based on the data on light emitting quantity of the under exposure side outputted from a multiplexer 27 by operating a switch RS1 until the display device 29 displays the value showing the under exposure side. Thus, an operation for obtaining the best print can be facilitated.

公开(公告)号：JPS63305225A

公开(公告)日：1988-12-13

申请号：JP14104387

申请日：1987-06-05

Applicant: MINOLTA CAMERA KK

Inventor： SUGIYAMA MASAMI ,  KAWAGOE NOBUKAZU ,  INABA MASAHITO

IPC: G01J3/46 ,  G01J3/02 ,  G01N21/47

Abstract: PURPOSE:To simplify an auxiliary tool, which supports a main body part, by forming a bottom surface, which is brought into contact with the surface of a sample in an expanding flat surface, and providing a sample opening in said flat surface so that the opening is deviated in one direction. CONSTITUTION:A lighting circuit 3, which controls the light emission of a xenon tube 2, is arranged at the rear side of an integrating sphere 18. The lower surface of the integrating sphere 18 is made to be an expanding surface. A sample opening 20 is provided in said flat surface so that the opening is deviated in one direction. The sample opening 20 of the integrating sphere 18 is brought into contact with a surface to be measured, and colors are measured. A light measuring circuit 4 integrates the signals, which are detected with spectral sensors S1 and S2, for the respective waveforms and performs A/D conversion.

公开(公告)号：JPS6236651A

公开(公告)日：1987-02-17

申请号：JP8529085

申请日：1985-04-20

Applicant: MINOLTA CAMERA KK

Inventor： NARUSE KAZUHIKO ,  YUASA YOSHIO ,  INABA MASAHITO

IPC: G03B17/18 ,  G01J1/42

Abstract: PURPOSE:To display a exposing data with high resolution by selecting the display of a scale at the display of the exposing data. CONSTITUTION:Outputs from a photometric circuit 1001, an exposure time setting device 102, an ISO setting device 103, and a relative G number setting device 104 are supplied to an arithmetic circuit 105 and 8-bit exposure information is calculated. When a switch SW21 is closed a switching device 1015 turns a scale display part 1012 to a display state and a decoder 1014 displays dots corresponding to a diaphragm value to be displayed. When the SW21 is opened, the device 1015 turns a scale display part 1013 to a display state to display dots corresponding to a diaphragm value to be displayed. If the SW20 and SW21 are turned on and off respectively, wide range display using the scale 1012 and a fine diaphragm value display using the scale 1013 can be attained.

公开(公告)号：JPS5954196A

公开(公告)日：1984-03-28

申请号：JP16283182

申请日：1982-09-18

Applicant: Minolta Camera Kk

Inventor： YUASA YOSHIO ,  NARUSE KAZUHIKO ,  INABA MASAHITO

IPC: G03B15/05 ,  H05B41/34

公开(公告)号：JPS58100843A

公开(公告)日：1983-06-15

申请号：JP20049681

申请日：1981-12-11

Applicant: MINOLTA CAMERA KK

Inventor： YUASA YOSHIO ,  YASUMOTO HIDETOSHI ,  KAWAGOE NOBUKAZU ,  NARUSE KAZUHIKO ,  INABA MASAHITO

IPC: G03B27/72

Abstract: PURPOSE:To make a titled device small-sized, to control the quantity of light emission with high accuracy, and also to shorten one exposure time, by controlling the quantity of light emission per once of a pulse light source, and the number of times of light emission, in accordance with an exposure quantity data which is set manually or automatically. CONSTITUTION:A light emission control part 1 controls a light emitting tube 3, and emitted light of the tube 3 is reflected by a mirror 5, transmits a negative film 7, and is projected and forms an image on an easel surface 11 through a lens 9. In this case, an exposure quantity data output part 13 supplies data of exposure quantity which is set manually or automatically, to an operating part 15. The operating part 15 decides the first unit light emission quantity approximating to a value which has divided the total light emission quantity corresponding to the exposure quantity data, by a suitable number, emits light by a suitable number of times by its light emission quantity, and when the remaining quantity which has subtracted the product of its light emission quantity and the number of time of light emission, from the total light emission quantity, the light emission quantity per once is varied by a small quantity, and the total number of times of light emission becomes the same extent at all times irrespective of the total light emission quantity.