photometer

A scientific instrument used to measure the intensity of light, either by comparing a light source to a standard or by measuring light levels for photographic purposes.

• 🌐جهاز علمي يُستخدم لقياس شدة الضوء، إما بمقارنة مصدر الضوء بمرجع معياري أو لقياس مستوى الإضاءة لأغراض فوتوغرافية.

1. Luminous intensity meter C1 formal scientific

   An instrument used to measure the brightness or luminous intensity of a light source by comparing it to a standard source, either visually or photoelectrically.

   • The scientist used a photometer to measure the output of the new LED bulb.
   • A visual photometer compares two light sources side by side.
   • Photoelectric photometers provide more accurate readings than older models.

   🌐مقياس الضوء

2. Photographic light meter B2 formal technical

   A device used in photography to measure the intensity of light, helping to determine the correct exposure settings.

   • The photographer adjusted the aperture based on the photometer reading.
   • A built-in photometer in the camera helps set the shutter speed.
   • He used a handheld photometer to measure the light in the studio.

   🌐مقياس الضوء الفوتوغرافي

   المرادفات: exposure meterlight meter

• photometers plural form
• photometers' possessive plural form
• photometer's possessive singular form