2. Consider the Cooper/Neo-Ray Converge, which is a suspended linear direct/indirect luminaire. This luminaire is suitable for commercial and educational settings, including offices, conference rooms, classrooms, libraries, and similar. An image of the luminaire and typical applications are shown below

The candela distribution for this luminaire is as follows: 22.5 45 67.5" 90 880 880 880 880 880 891 885 863 861 857 15" 840 831 804 793 789 25" 752 750 733 720 710 35 650 656 642 635 631 45" 544 550 546 552 552 55 424 431 428 439 446 65" 298 296 286 309 313 750 160 151 147 141 136 85" 34 45 128 345 467 4 77 211 520 676 95 64 132 288 629 808 105" 190 224 382 648 789 1150 271 277 356 492 567 125" 275 275 260 279 294 135 205 192 188 177 173 145* 122 126 143 156 156 155 100 98 102 113 117 165 96 90 81 83 83 1750 94 90 75 68 66 180' 79 79 79 79 79 Answer these questions:2.1. This luminaire exhibits symmetry. (axial, bi-lateral, quadrilateral, no) 2.2. What is the mean luminous intensity at a vertical angle of 85 degrees? [Answer: 192.1 cd] 2.3. What are the zonal lumens in the zone from 20 to 30 degrees? [Answer: 339.5 lumens] 2.4. What 10-degree zone produces the largest mid-zone mean luminous intensity? [Answer: The midzone mean luminous intensity in the zone from 0 to 10 degrees is the largest, Is = 870.8 cd.] 2.5. What 10-degree zone produces the greatest percentage of fixture lumens? What is the percentage? [Answer: The zone from 100 to 110 degrees produces 461.1 lumens, which is about 10.6% of the total lumens.]lb. 2.2. 2.3. 2.9. Reconcile the preyious two answers. That is, why is it that the zone from 130 to 110 degrees produces more than four times more lumens than the zone from D to 1i:I degrees, despite the fact that the mean luminous intensity in the zone from Dto 13 degrees is about double the mean luminous intensity in the zone from 130 to 113 degrees? Sketch a luminous intensity diagram, including at least the 3 degree and 90 degree planes. What is the ClEfiES distribution type for this luminaire? Substantiate your solution with a calculation. [Answer: There are about 2,532 downward lumens and 1,303 upward lumens, which is about 53% downward and 42% upward. This split corresponds to either directfindirect or general diffuse. Directfindirect is probably a better categorization given the shape of the luminous intensity distribution] If the input power to the luminaire is 33.5 watts, what is the efficacy of the luminaire? [Answer: 2 112.3 lumensfwatt] 2.13. if the luminous aperture is [1.53\" {width} x 4' {length}, what is the ayerage luminance in cdfm2 if you we re to look straight at the luminaire {e.g., imagine lying on the floor so that your line-of-sight is perpendicular to the luminous aperture and you are viewing along the luminaire's nadir axis]. [Answen 3,431 cdfml] \f