LS-150 and LS-160 Photometers

Ultra-precise portable photometers The LS-150 and LS-160 are portable, lightweight and self-contained photometers for luminance measurement. Worthy successors to the LS-100 and LS-110, these new instruments offer improved functionality and ease of use. This new generation of instruments offers an extended photometric range and increased correlation with the V(?) sensitivity curve (CIE 1931 sensitivity curve, photopic vision). To provide a highly accurate measurement of luminance, the relative spectral response of the measuring instrument must closely match the sensitivity of the human eye for photopic vision, represented by the CIE V(?) luminous efficacy curve. Along with improved usability, the LS-150 and LS-160 offer operators a significantly improved measurement range: from 0.01 cd/m² to 999,900 cd/m² (LS-150) and 0.1 cd/m² to 9,999,000 cd/m² (LS-160). The LS-150 and LS-160 have the same user-friendliness as the renowned LS-100 and LS-110: Reflex sight (SLR) and pistol grip for precise targeting of the area to be measured, even at close range. The measured luminance is displayed on the internal display and the large external monochrome display. The optical system is designed to eliminate stray beams, eliminating the influence of light that is outside the measurement area. Zones of diameter 0.4mm can be measured with the LS-160 equipped with additional eyecups (see the table of optional accessories for more information). The result is a real new generation of devices, precise and user-friendly. The LS-150 satisfies the requirements of the DIN 5032-7 Class B standard. The LS-150 and LS-160 photometers are able to measure all types of light sources: road signs, traffic lights, airport lighting, lamps LEDs, cathode ray tubes, LED screens, etc. Operators can now guarantee minimum luminance, change dim lamps before they cause a problem, create a quality assurance system for lamp production, or control indirectly lit objects like movie screens. The ergonomics of these devices allows use in all conditions.