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... white background, the old lumens metric only measures white light. Lumens, or brightness, tells the projector buyer little about the brightness of colors in photos, videos or graphics. Fortunately, a newer ... White as well as the brightness of Color.
Low Color Brightness
High Color Brightness
Both projectors are set their brightest Testing and photography conducted byto Lumita Inc. mode.
Actual photograph of ... Brightness, or technically Light Output, is only a measurement of white light. To measure brightness, projector makers will take nine brightness readings across the entire image. The average of the nine ... ) and 2600 lumens (White Brightness). 2. The data in Table 1 was obtained from Projector Central based on information available from these manufacturers. 3. The White Brightness data in Table ... 2 was obtained through Projector Central, as specified by the manufacturers. These manufacturers do not provide Color Brightness (Color Light ...
... of imaging companies. For more information about Lumita visit www.Lumita.com.
PROJECTOR DATA
Tests were conducted on individual units of over 200 different models. The ... PR-524 are calibrated using Illuminant A (Tungsten.) Due to the mercury lamps and dichroic filters used in DLP front projection displays the absolute accuracy of ... questioned. In fact our own experiences at Lumita demonstrate wide variability (when measuring projectors) among different brands and models of photometers depending on the quality of their ... precise alignment and positioning of the illuminance heads and the focal plane of the projector. The jig creates a relative repeatability specification of +- 2mm for the placement ... the beginning of each experiment. The jig provides corner focus targets allowing the projector geometry to be properly aligned to the jig. A laser center line ... is projected during setup to facilitate aligning the optical axis of the projector perpendicular to the focal plane.
Focal Plane Area
Due to minor anomalies ...