Light Meters

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Definition of Light Meter

A light meter, also known as a photometer or lux meter, is a device used to measure the amount of light present in a specific area. It quantifies the illuminance, which is the level of light falling on a surface per unit area. Light meters provide a numeric value, usually in units of lux or foot-candles, to represent the intensity of light at a particular location.

Contexts and Scopes of Light Meter

  1. Photography: In photography, a light meter helps photographers determine the optimal exposure settings for capturing images. It measures the light falling on a subject and provides readings that guide photographers in adjusting aperture, shutter speed, and ISO settings to achieve proper exposure.

  2. Cinematography: Light meters are extensively used in cinematography to ensure consistent lighting conditions throughout different shots. By measuring the light intensity on the film or digital sensor, cinematographers can maintain a desired level of illumination and create a visually appealing cinematic experience.

Synonyms and Antonyms of Light Meter

Synonyms:

  1. Photometer
  2. Lux meter

Antonyms:

  1. Darkness meter
  2. Absence of light detector

Related Concepts and Terms

  1. Illuminance: Illuminance refers to the measure of light intensity incident on a surface. Light meters provide readings of illuminance, enabling precise control of lighting conditions.

  2. Exposure: Exposure represents the total amount of light reaching the film or image sensor in photography or cinematography. Light meters help determine the correct exposure settings, ensuring optimal image quality.

  3. Incident Light: Incident light refers to the light falling directly on the subject being photographed. Light meters measure the incident light to assess its intensity accurately.

  4. Reflectance: Reflectance is the ratio of incident light reflected by a surface. It influences the amount of light available for measurement and affects the readings obtained from a light meter.

  5. Ambient Light: Ambient light encompasses all sources of light in a given area, including natural and artificial lighting. Light meters measure the ambient light to analyze the overall lighting level.

Real-World Examples and Use Cases

  1. Photography: A photographer uses a light meter to determine the appropriate exposure settings while shooting outdoors, ensuring well-balanced images with accurate lighting.

  2. Film Production: A cinematographer employs a light meter to achieve consistent lighting between different scenes, creating a cohesive visual narrative.

  3. Architectural Design: During the design phase of buildings, architects use light meters to assess the lighting conditions at different locations, ensuring optimal natural light integration.

  4. Environmental Monitoring: Scientists use light meters to measure light intensity in ecological studies, analyzing the impact of light on plant growth, animal behavior, and light pollution.

  5. Industrial Safety: Light meters are utilized in industrial environments to evaluate workplace lighting and ensure compliance with safety regulations, minimizing risks associated with insufficient lighting.

Specific Industries Light Meter is Used in

  1. Photography
  2. Cinematography
  3. Architecture and Interior Design
  4. Environmental Science and Research
  5. Occupational Health and Safety

Specific Use Cases of Light Meter

  1. Determining proper exposure for photography and cinematography.
  2. Assessing lighting conditions in architectural spaces for optimized design.
  3. Analyzing the impact of light on plant growth and ecological systems.
  4. Ensuring workplace safety by evaluating adequate lighting levels.
  5. Investigating light pollution and its effects on the environment and wildlife.

Key Attributes and Characteristics of Light Meter

  1. Accuracy: Light meters provide precise and reliable readings to measure light intensity accurately.

  2. Portability: Light meters come in various sizes, ranging from handheld devices to compact sensors integrated into cameras, ensuring portability and ease of use.

  3. Measurement Range: Light meters can measure a wide range of light intensities, covering both low-light and high-intensity scenarios.

  4. Display and Controls: Light meters feature clear displays and intuitive controls for easy reading and adjustment of settings.

  5. Calibration: Light meters require regular calibration to maintain accuracy. This ensures consistent and reliable measurements over time.

Classifications or Categories of Light Meter

  1. Optical Instruments: Light meters fall into the category of optical instruments, along with microscopes, telescopes, and spectrometers.

  2. Photographic Equipment: Light meters are a crucial component of photographic equipment, enabling precise exposure control.

  3. Scientific Measurement Tools: Light meters are classified as scientific measurement tools due to their ability to quantify light intensity accurately.

Comparisons with Similar Concepts

  1. Light Sensor vs. Light Meter: While both light sensors and light meters measure light intensity, light meters provide quantifiable readings in units of lux or foot-candles, whereas light sensors may only provide relative light levels or trigger specific actions.

  2. Luminance Meter vs. Light Meter: Luminance meters measure the brightness of a light source or surface, while light meters focus on measuring the overall light intensity in a specific area.

  3. Spectrometer vs. Light Meter: Spectrometers analyze the spectral composition of light, enabling measurement of specific wavelengths, whereas light meters provide an overall measure of light intensity without analyzing its spectral characteristics.

By understanding the concept of a light meter and its diverse applications, we can appreciate its significance in the realm of scientific instruments. Whether in photography, cinematography, environmental monitoring, or other fields, light meters play a pivotal role in achieving accurate and consistent lighting conditions.

  • Exact match keyword: "light meter"
  • N-gram classification: "scientific instrument"
  • Substring matches: "photometer", "lux meter"
  • Category: Scientific Instruments
  • Search intent: Measurement of light intensity
  • Semantic relevance: Photometry, illuminance, exposure
  • Parent category: Measurement Tools
  • Subcategories: Photography, Cinematography, Physics, Environmental Monitoring
  • Synonyms: Photometer, Lux meter
  • Similar searches: Light sensor, Luminance meter, Spectrometer
  • Related searches: Photography exposure, Cinematography lighting, Illuminance measurement
  • Geographic relevance: Global
  • Topically relevant entities: Light intensity, illuminance, exposure settings
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Product code: IC-M502B
lluminance meter including battery, operating instructions and calibration protocol. 0.1 lx to 199900 lx/0.001 fc to19990 fc
$818.00 AUD + GST
$899.80 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 3rd of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-CENTER530
The CENTER530 is the ideal light meter for basic lighting investigations. With its detachable probe you can use it as a single handed unit, or use it with the sensor away from your body. Its wide measurement range also makes it suitable for measuring outdoor lighting.
$170.00 AUD + GST
$187.00 AUD Inc. GST
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8 in stock info icon
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Product code: LM8102
Measure light, sound, air speed, %RH, temperature & type K sensors in one unit! - Great value 5 in 1 unit - Min/Max hold function - With 2 Year Extended Warranty!
$379.20 AUD + GST
$417.12 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 27th of July 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-FLUKE-941
The Fluke 941 is a handheld luminometer than can measure visible light sent from a variety of light sources, to include fluorescent, metal halide, high pressure sodium, or incandescent lamps.
$509.30 AUD + GST
$560.23 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 17th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: LM-81LX
Durable, accurate and easy to use handheld light meter. - Measures light in lux & foot-candle - Lux Range: 0 to 20,000 - Foot-Candle Range: 0 to 2,000 - With 2 Year Extended Warranty!
$109.90 AUD + GST
$120.89 AUD Inc. GST
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8 in stock info icon
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Product code: IC-TTV-335
The Testboy TV 335 is a digital luxmeter in a practical and robust plastic housing with a large measurement range of up to 400.000 Lux. - Photo diodes sensitive to artificial light (e.g. LED lighting) - Adjustable color temperature - Data-Hold function
$289.00 AUD + GST
$317.90 AUD Inc. GST
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4 in stock info icon
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Product code: IC-M502C
The MAVOLUX Compact is a Class C instrument in accordance with DIN 5032-7 and EN 13032-1 appendix B. It includes high-quality, luminosity function matching and cosine correction, and it's laid out for reliable measurement of daylight and all sources of artificial light including LED with a large measuring range and accuracy.
$818.00 AUD + GST
$899.80 AUD Inc. GST
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1 in stock info icon
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Product code: UV340A
Pocket Uv Light Meter for UVA & UVB, 290 nm to 390 nm. - Seperate UV light sensor probe - Hi, Lo measurement range - Built in zero button
$249.90 AUD + GST
$274.89 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 27th of July 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-MQ-200
Quantum Separate Sensor with Handheld Meter
$1,071.00 AUD + GST
$1,178.10 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 10th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-M502N
The Gossen Foto M502N MavoLux Model 5032 C is a high precision luxmeter that is optimally suited for measuring very high light intensities (brightest daylight, head lights, etc.) without any additional accessories. The 5032C has a USB interface for powering the meter, meter control, and data display/storage using GLUX 2 software (included). The MavoLux 5032 C is typically used in basic/general applications. Sensor cable is permanently attached. Precision meter for measuring the illuminance in Lux and Footcandles in accordance with IEC 13032-1, Appendix B The silicon photo diode is color corrected, i.e. its spectral response is matched to the photopic daylight vision of the human eye V(λ) Luminance can be measured in cd/m² or fL when using the Luminance Attachment (optional accessory)
$1,289.00 AUD + GST
$1,417.90 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 3rd of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: LM-8000A
Four-in-one solution for the temperature, humidity, air velocity and light. - Lightweight and durable for handheld use - Hold button freezes current reading - With 2 Year Extended Warranty!
$239.70 AUD + GST
$263.67 AUD Inc. GST
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3 in stock info icon
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Product code: IC-850010
Measures short wave UV-C light for applications such as UV light fume hoods, UV sterilization, industrial glass and non-destructive testing.
$1,369.30 AUD + GST
$1,506.23 AUD Inc. GST
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1 in stock info icon
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Product code: IC1587LM
Compact and easy to use hand held digital light meter. - Range: 0.1 to 50,000 Lux - Data Hold - 3 Ranges
$99.50 AUD + GST
$109.45 AUD Inc. GST
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7 in stock info icon
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Product code: 0560-0540
The sensor of the testo 540 is adapted to the spectral sensitivity of the eye. - Range: 0 to 99,999 Lux - Incl. calibration protocol - Resolution: 1 Lux (0 to 19.999 Lux), 10 Lux (remaining range)
$259.70 AUD + GST
$285.67 AUD Inc. GST
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2 in stock info icon
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Product code: LX-1108
Light Meter, Bar Graph Lcd, 5 Ranges, 4 Light Type Selection. - 40.00/400.0/4,000/40,000/400,000 Lux - Lux & Foot-candle unit selection - With 2 Year Extended Warranty!
$239.50 AUD + GST
$263.45 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 27th of July 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC1584LM
Professional Digital Light Meter with max measurement of 400,000lux. - Selectable Lux or fc scale - Data hold & relative mode - Long-life silicon photo diode sensor
$284.414 AUD + GST
$312.86 AUD Inc. GST
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5 in stock info icon
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Product code: LT40
Extech LED Light meters are used for monitoring and optimizing environmental light levels in buildings, schools, and offices. LED lighting is being used more commonly, because they are less expensive, more energy efficient and brighter.
$249.40 AUD + GST
$274.34 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 14th of September 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: UVC254
Short wave 254 nm ultra-violet irradiance measurement. With 2 Year Extended Warranty!
$759.80 AUD + GST
$835.78 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 27th of July 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-CENTER532
UV light meter with removable probe and large LCD display. Fully covers UVA and UVB measuring ranges.
$279.70 AUD + GST
$307.67 AUD Inc. GST
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12 in stock info icon
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Product code: 850071
Handheld anemometer that records air speed, air temperature, relative humidity, light and thermocouple temperature onto removable SD Cards. - Features a 4-parameter environmental probe and also accepts standard type K or J thermocouple probes. -Complete kit that includes soft carrying case, detachable probe, instruction manual and an SD card.
$569.40 AUD + GST
$626.34 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 10th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-850011
Enables precise measurement of illuminance, color temperature, correlated color temperature or color difference simultaneously shown on a backlit display. Excellent for art galleries and museums, film and TV studios, lighting manufacturers, stores and designers. Meets CIE photopic spectral response and color temperature. Lux and foot candle selectable with general or LED light modes and a hold function. Comes in a protective foam lined carrying case complete with a tripod screw, magnetic mount, 9V battery and instructions.
$1,019.60 AUD + GST
$1,121.56 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 10th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-850004
Sper Scientific’s Bluetooth® Light Meter is small, light, and simple to use with results displayed on the meter’s large 1.5” backlit display. Choose readings in lux or foot-candles.
$239.00 AUD + GST
$262.90 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 10th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC850006
Sper Scientific's LED Light Meter compensates for the wide variety of color temperatures available in modern LED lighting. Choose modes for 2700K, 3000K, 3500K, 4000K, 4500K, 5000K, or 6500K and the meter's internal calibration is adjusted for that color temperature resulting in equally accurate readings at every color temperature.
$519.40 AUD + GST
$571.34 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 19th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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$2,689.10 AUD + GST
$2,958.01 AUD Inc. GST
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Backorder Now, once ordered your item will dispatch before the 24th of August 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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Product code: IC-TTV-333
The Testboy TV 333 accurately and easily measures light stength and intensity using a freely moving sensor. The Testboy TV 333 can measure up to 100,000 Lux, suitable for measurements in offices, conference rooms, classrooms and other public buildings.
$221.00 AUD + GST
$243.10 AUD Inc. GST
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4 in stock info icon
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Product code: IC-LX1118
Light meter with five measurement ranges. Can measure on Lux or Foot-candle.
$289.20 AUD + GST
$318.12 AUD Inc. GST
in stock icon
Backorder Now, once ordered your item will dispatch before the 27th of July 2024, call 1300 737 871 (NZ 0800 737 871) to confirm
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