Photoelectric exposure meters for determining the exposure time in recording or reproducing

Industry

CPC
G01J1/4209

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Parent Industries

GPHYSICS G01Measuring instruments G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT COLORIMETRY RADIATION PYROMETRY G01J1/00Photometry

Current Industry

G01J1/4209Photoelectric exposure meters for determining the exposure time in recording or reproducing

Industries

Patents Grantslast 30 patents

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System and devices for measuring light sources and methods of use t...
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- Issue date Feb 22, 2022
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- Issue date May 25, 2021
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Methods, systems, and apparatuses for accurate measurement and real...
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Electronic device and method for providing information of UV dose t...
- Patent number 10,620,041
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Methods, systems, and apparatuses for accurate measurement and real...
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- Issue date Jan 7, 2020
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Methods, systems, and apparatuses for accurate measurement and real...
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Image pickup system
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Extreme ultraviolet light generating apparatus
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- Gigaphoton Inc.
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System for tracking and responding to solar radiation exposure for...
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Optical displacement sensor having a light receiving level upper li...
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Optical composite cure radiometer and method
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Light meter
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- Issue date Jul 7, 1998
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Photometric apparatus
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- Issue date Jun 16, 1998
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- Hiroyuki Iwasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photometry device for camera
- Patent number 5,136,326
- Issue date Aug 4, 1992
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Hidetaka Yokota
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Accumulated exposure detection with exposure terminating attenuator
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Exposure control method and apparatus compensating for detection of...
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Illuminant discriminator with improved boundary conditions
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- Issue date Aug 6, 1991
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light metering device with detector matrix and mean value detection
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Photometric device
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Light quantity measuring system
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- Issue date Jun 27, 1989
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Metering device
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- Issue date Nov 1, 1983
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Photographic spot measuring apparatus
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- Minolta Camera Kabushiki Kaisha
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Calculator
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- Issue date Jan 3, 1978
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- Peter T. Quinn
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Information Patent Grant
Photometer mode indicator
- Patent number 4,030,838
- Issue date Jun 21, 1977
- Tektronix, Inc.
- Jon Leroy Fessler
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

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MEDICAL DEVICE ADAPTIVE CONTROL FOR HOSTILE ENVIRONMENT
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MEDICAL DEVICE ADAPTIVE CONTROL FOR HOSTILE ENVIRONMENT
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LIGHT DETECTION SYSTEM, DISCHARGE PROBABILITY CALCULATING METHOD, A...
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VISION INSPECTION APPARATUS AND A METHOD OF DRIVING THE SAME
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- SAMSUNG DISPLAY CO., LTD.
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METHODS, SYSTEMS, AND APPARATUSES FOR ACCURATE MEASUREMENT AND REAL...
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IMAGING APPARATUS, ELECTRONIC DEVICE AND METHOD PROVIDING EXPOSURE...
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IMAGE CAPTURING APPARATUS, METHOD FOR CONTROLLING IMAGE CAPTURING A...
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- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Photoelectric exposure meters for determining the exposure time in recording or reproducing

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

System and devices for measuring light sources and methods of use t...

Medical device adaptive control for hostile environment

Vision inspection apparatus and a method of driving the same

Light detection system, discharge probability calculating method, a...

Light sensor having adaptively controlled gain

System for tracking and responding to solar radiation exposure for...

Methods, systems, and apparatuses for accurate measurement and real...

Electronic device and method for providing information of UV dose t...

Methods, systems, and apparatuses for accurate measurement and real...

Methods, systems, and apparatuses for accurate measurement and real...

Image pickup system

Focus detection apparatus and method, and image capturing apparatus

Extreme ultraviolet light generating apparatus and control method f...

Extreme ultraviolet light generating apparatus

System for tracking and responding to solar radiation exposure for...

Optical displacement sensor having a light receiving level upper li...

Optical composite cure radiometer and method

Light meter

Photometric apparatus

Photometry device for camera

Accumulated exposure detection with exposure terminating attenuator

Exposure control method and apparatus compensating for detection of...

Illuminant discriminator with improved boundary conditions

light metering device with detector matrix and mean value detection

Photometric device

Light quantity measuring system

Metering device

Photographic spot measuring apparatus

Calculator

Photometer mode indicator

Patents Applicationslast 30 patents

MEDICAL DEVICE ADAPTIVE CONTROL FOR HOSTILE ENVIRONMENT

MEDICAL DEVICE ADAPTIVE CONTROL FOR HOSTILE ENVIRONMENT

LIGHT DETECTION SYSTEM, DISCHARGE PROBABILITY CALCULATING METHOD, A...

VISION INSPECTION APPARATUS AND A METHOD OF DRIVING THE SAME

MEDICAL DEVICE ADAPTIVE CONTROL FOR HOSTILE ENVIRONMENT

SYSTEM AND DEVICES FOR MEASURING LIGHT SOURCES AND METHODS OF USE T...

LIGHT SENSOR HAVING ADAPTIVELY CONTROLLED GAIN

DEVICE FOR DETERMINING A POSITION OF AT LEAST ONE OBJECT

Methods, Systems, and Apparatuses for Accurate Measurement and Real...

SYSTEM FOR TRACKING AND RESPONDING TO SOLAR RADIATION EXPOSURE FOR...

EXTREME ULTRAVIOLET LIGHT GENERATING APPARATUS

EXTREME ULTRAVIOLET LIGHT GENERATING APPARATUS AND CONTROL METHOD F...

IMAGE PICKUP APPARATUS THAT CAUSES LIGHT SOURCE TO EMIT LIGHT WHEN...

SYSTEM FOR TRACKING AND RESPONDING TO SOLAR RADIATION EXPOSURE FOR...

FOCUS DETECTION APPARATUS AND METHOD, AND IMAGE CAPTURING APPARATUS

ELECTRONIC DEVICE AND METHOD FOR PROVIDING INFORMATION OF UV DOSE T...

IMAGE PICKUP SYSTEM

METHODS, SYSTEMS, AND APPARATUSES FOR ACCURATE MEASUREMENT AND REAL...

IMAGE PROCESSING METHOD CAPABLE OF DETECTING NOISE AND RELATED NAVI...

OPTICAL DISPLACEMENT SENSOR

PHOTOELECTRIC CONVERSION APPARATUS, IMAGING SYSTEM, AND DRIVING MET...

IMAGING APPARATUS, ELECTRONIC DEVICE AND METHOD PROVIDING EXPOSURE...

TEST DEVICE AND CONTROL METHOD THEREOF

IMAGE CAPTURING APPARATUS, METHOD FOR CONTROLLING IMAGE CAPTURING A...

Optical composite cure radiometer and method