FI109632B - Valkoinen valaisu - Google Patents

Valkoinen valaisu Download PDF

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Publication number
FI109632B
FI109632B FI20002430A FI20002430A FI109632B FI 109632 B FI109632 B FI 109632B FI 20002430 A FI20002430 A FI 20002430A FI 20002430 A FI20002430 A FI 20002430A FI 109632 B FI109632 B FI 109632B
Authority
FI
Finland
Prior art keywords
light
illumination
measuring
luminous
subject
Prior art date
Application number
FI20002430A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI20002430A0 (fi
FI20002430A (fi
Inventor
Mika Antila
Original Assignee
Nokia Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Corp filed Critical Nokia Corp
Priority to FI20002430A priority Critical patent/FI109632B/fi
Publication of FI20002430A0 publication Critical patent/FI20002430A0/fi
Priority to CNB018184790A priority patent/CN100385490C/zh
Priority to PCT/EP2001/012735 priority patent/WO2002037454A2/fr
Priority to EP01992993.4A priority patent/EP1336171B1/fr
Priority to AU2002216003A priority patent/AU2002216003A1/en
Priority to US09/985,729 priority patent/US6674060B2/en
Publication of FI20002430A publication Critical patent/FI20002430A/fi
Application granted granted Critical
Publication of FI109632B publication Critical patent/FI109632B/fi

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals
FI20002430A 2000-11-06 2000-11-06 Valkoinen valaisu FI109632B (fi)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI20002430A FI109632B (fi) 2000-11-06 2000-11-06 Valkoinen valaisu
CNB018184790A CN100385490C (zh) 2000-11-06 2001-11-02 白照明
PCT/EP2001/012735 WO2002037454A2 (fr) 2000-11-06 2001-11-02 Illumination blanche
EP01992993.4A EP1336171B1 (fr) 2000-11-06 2001-11-02 Illumination blanche
AU2002216003A AU2002216003A1 (en) 2000-11-06 2001-11-02 White illumination
US09/985,729 US6674060B2 (en) 2000-11-06 2001-11-06 Method and apparatus for illuminating an object with white light

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20002430 2000-11-06
FI20002430A FI109632B (fi) 2000-11-06 2000-11-06 Valkoinen valaisu

Publications (3)

Publication Number Publication Date
FI20002430A0 FI20002430A0 (fi) 2000-11-06
FI20002430A FI20002430A (fi) 2002-05-07
FI109632B true FI109632B (fi) 2002-09-13

Family

ID=8559439

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20002430A FI109632B (fi) 2000-11-06 2000-11-06 Valkoinen valaisu

Country Status (6)

Country Link
US (1) US6674060B2 (fr)
EP (1) EP1336171B1 (fr)
CN (1) CN100385490C (fr)
AU (1) AU2002216003A1 (fr)
FI (1) FI109632B (fr)
WO (1) WO2002037454A2 (fr)

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WO2002037454A3 (fr) 2002-08-15
EP1336171A2 (fr) 2003-08-20
WO2002037454A2 (fr) 2002-05-10
FI20002430A0 (fi) 2000-11-06
FI20002430A (fi) 2002-05-07
EP1336171B1 (fr) 2015-07-29
CN100385490C (zh) 2008-04-30
US6674060B2 (en) 2004-01-06
AU2002216003A1 (en) 2002-05-15
US20020113192A1 (en) 2002-08-22
CN1568496A (zh) 2005-01-19

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