Relationship between Screen Size and Projection Distance

 

Screen size at 4:3

 

Zoomed projection distance

 

 

 

 

 

 

Screen size at 16:9

 

aspect ratio

 

Max.

 

 

Min.

 

H1

 

 

H2

aspect ratio

 

W x D (cm)

 

 

 

 

 

 

 

 

 

W x D (cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40σ 81 x 61

 

2.0 m

 

 

1.2 m

 

55 cm

 

 

6 cm

37σ 81 x 46

 

 

(6.6χ)

 

 

(3.9χ)

 

(1.8χ)

 

 

(0.2χ)

 

 

 

 

 

 

 

 

 

 

 

 

50σ 102 x 76

 

2.5 m

 

 

1.5 m

 

 

69 cm

 

 

8 cm

 

46σ 102 x 57

 

 

 

(8.2χ)

 

 

(4.9χ)

 

 

(2.3χ)

 

 

(0.26χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60σ 122 x 91

 

3.0 m

 

 

1.8 m

 

82 cm

 

 

9 cm

55σ 122 x 69

 

 

(9.8χ)

 

 

(5.9χ)

 

(2.7χ)

 

 

(0.3χ)

 

 

 

 

 

 

 

 

 

 

 

 

70σ 142 x 107

 

3.5 m

 

 

2.1 m

 

 

96 cm

 

 

11 cm

 

64σ 142 x 80

 

 

 

(11.5χ)

 

 

(6.9χ)

 

 

(3.1χ)

 

 

(0.36χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80σ 163 x 122

 

4.0 m

 

 

2.4 m

 

110 cm

 

 

12 cm

74σ 163 x 91

 

 

(13.1χ)

 

 

(7.9χ)

 

(3.6χ)

 

 

(0.4χ)

 

 

 

 

 

 

 

 

 

 

 

 

90σ 183 x 137

 

4.5 m

 

 

2.7 m

 

 

123 cm

 

 

14 cm

 

83σ 183 x 103

 

 

 

(14.8χ)

 

 

(8.9χ)

 

 

(4.0χ)

 

 

(0.46χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100σ 203 x 152

 

5.0 m

 

 

3.0 m

 

137 cm

 

 

15 cm

91σ 203 x 114

 

 

(16.4χ)

 

 

(9.8χ)

 

(4.5χ)

 

 

(0.49χ)

 

110σ 224 x 168

 

 

5.5 m

 

 

3.3 m

 

 

151 cm

 

 

17 cm

 

101σ 224 x 126

 

 

 

 

(18.0χ)

 

 

χ

 

 

(5.0χ)

 

 

(0.56χ)

 

 

 

 

 

 

 

 

(10.8 )

 

 

 

 

 

 

 

 

120σ 244 x 183

 

6.0 m

 

 

3.6 m

 

165 cm

 

 

18 cm

110σ 244 x 137

 

 

(19.7χ)

 

 

χ

 

(5.4χ)

 

 

(0.59χ)

 

 

 

 

 

(11.8 )

 

 

 

 

 

 

 

130σ 264 x 198

 

6.5 m

 

 

3.9 m

 

 

178 cm

 

 

20 cm

 

119σ 264 x 149

 

 

 

(21.3χ)

 

 

(12.8χ)

 

 

(5.8χ)

 

 

(0.66χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

140σ 284 x 213

 

7.0 m

 

 

4.2 m

 

192 cm

 

 

21 cm

128σ 284 x 160

 

 

(23.0χ)

 

 

(13.8χ)

 

(6.3χ)

 

 

(0.69χ)

 

 

 

 

 

 

 

 

 

 

 

 

150σ 305 x 229

 

7.5 m

 

 

4.5 m

 

 

206 cm

 

 

23 cm

 

138σ 305 x 171

 

 

 

(24.6χ)

 

 

(14.8χ)

 

 

(6.8χ)

 

 

(0.75χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

160σ 325 x 244

 

8.0 m

 

 

4.8 m

 

219 cm

 

 

24 cm

147σ 325 x 183

 

 

(26.2χ)

 

 

(15.7χ)

 

(7.2χ)

 

 

(0.79χ)

 

 

 

 

 

 

 

 

 

 

 

 

170σ 345 x 259

 

8.5 m

 

 

5.1 m

 

 

233 cm

 

 

26 cm

 

156σ 345 x 194

 

 

 

(27.9χ)

 

 

(16.7χ)

 

 

(7.6χ)

 

 

(0.85χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

176σ 358 x 268

 

8.8 m

 

 

5.3 m

 

241 cm

 

 

27 cm

162σ 358 x 201

 

 

(28.9χ)

 

 

(17.4χ)

 

(7.9χ)

 

 

(0.86χ)

 

 

 

 

 

 

 

 

 

 

 

 

180σ 366 x 274

 

9.0 m

 

 

5.4 m

 

 

247 cm

 

 

27 cm

 

165σ 366 x 206

 

 

 

(29.5χ)

 

 

(17.7χ)

 

 

(8.1χ)

 

 

(0.86χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

182σ 370 x 277

 

9.1 m

 

 

5.5 m

 

250 cm

 

 

28 cm

167σ 370 x 208

 

 

(29.9χ)

 

 

(18.0χ)

 

(8.2χ)

 

 

(0.9χ)

 

 

 

 

 

 

 

 

 

 

 

 

190σ 386 x 290

 

 

 

 

5.7 m

 

 

261 cm

 

 

29 cm

 

174σ 386 x 217

 

 

 

 

 

 

(18.7χ)

 

 

(8.6χ)

 

 

(0.95χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200σ 406 x 305

-

 

 

6.0 m

 

274 cm

 

 

30 cm

184σ 406 x 229

 

 

 

(19.7χ)

 

(9.0χ)

 

 

(0.98χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

210σ 427 x 320

 

 

 

 

6.3 m

 

 

288 cm

 

 

32 cm

 

193σ 427 x 240

 

 

 

 

 

 

(20.7χ)

 

 

(9.4χ)

 

 

(1.05χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

220σ 447 x 335

-

 

 

6.6 m

 

302 cm

 

 

34 cm

202σ 447 x 251

 

 

 

(21.7χ)

 

(9.9χ)

 

 

(1.12χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

230σ 467 x 351

 

 

 

 

 

7.0 m

 

 

315 cm

 

 

35 cm

 

211σ 467 x 263

 

 

 

 

 

 

 

(23.0χ)

 

 

(10.3χ)

 

 

(1.15χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240σ 488 x 366

-

 

 

7.3 m

 

329 cm

 

 

37 cm

220σ 488 x 274

 

 

 

(24.0χ)

 

(10.8χ)

 

 

(1.21χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

250σ 508 x 381

 

 

 

 

7.6 m

 

 

343 cm

 

 

38 cm

 

233σ 508 x 286

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(24.9χ)

 

 

(11.3χ)

 

 

(1.25χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

260σ 528 x 396

-

 

 

7.9 m

 

357 cm

 

 

40 cm

239σ 528 x 297

 

 

 

(25.9χ)

 

(11.7χ)

 

 

(1.31χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

270σ 549 x 411

 

 

 

 

8.2 m

 

 

370 cm

 

 

41 cm

 

248σ 549 x 309

 

 

 

 

 

 

(26.9χ)

 

 

(12.1χ)

 

 

(1.35χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

280σ 569 x 427

-

 

 

8.5 m

 

384 cm

 

 

43 cm

257σ 569 x 320

 

 

 

(27.9χ)

 

(12.6χ)

 

 

(1.41χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

290σ 589 x 442

 

 

 

 

 

8.8 m

 

 

398 cm

 

 

44 cm

 

266σ 589 x 331

 

 

 

 

 

 

 

(28.9χ)

 

 

(13.1χ)

 

 

(1.44χ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300σ 610 x 457

-

 

 

9.1 m

 

411 cm

 

 

46 cm

276σ 610 x 343

 

 

 

(29.9χ)

 

(13.5χ)

 

 

(1.51χ)

 

 

 

 

 

 

 

 

 

 

 

 

APPENDIX

85

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Image 85
NEC SX50 user manual Relationship between Screen Size and Projection Distance

SX50 specifications

The NEC SX50 is a state-of-the-art supercomputer designed for high-performance computing (HPC) applications. This innovative machine is part of the NEC SX series, renowned for its reliability and efficiency in handling complex computational tasks across a diverse range of industries, including academia, research, and industry.

One of the most notable features of the NEC SX50 is its architecture, which incorporates the unique vector processing technology. This technology enables the SX50 to execute various data types simultaneously, significantly improving processing speed and efficiency, especially for workloads that require substantial numerical calculations. The vector processors can operate on large datasets, making them ideal for scientific simulations, weather forecasting, and complex modeling tasks.

Furthermore, the SX50 boasts a high degree of scalability, allowing organizations to expand their computational power as their needs grow. This flexibility is achieved through the system's modular design, which lets users integrate additional processors and memory components without major disruptions.

The NEC SX50 also emphasizes energy efficiency, which is indispensable for modern data centers. The system is equipped with advanced cooling solutions and power management features that minimize energy consumption while maximizing computational performance. This focus on sustainability is vital for organizations aiming to reduce their carbon footprint.

Another noteworthy characteristic of the SX50 is its support for various programming languages and software environments. The system is compatible with popular programming languages, including C, C++, and Fortran, as well as various parallel computing libraries. This compatibility allows researchers and scientists to leverage their existing codebases, facilitating a smooth transition to using this advanced computing platform.

In addition, the SX50 utilizes NEC's proprietary high-speed interconnect technology, which significantly enhances communication between processing units. This feature reduces data transfer times, thereby accelerating overall performance and enabling faster data processing for parallel applications.

Lastly, the system is designed with robustness and reliability in mind, featuring error detection and correction mechanisms to ensure data integrity and system stability. This makes the NEC SX50 a dependable choice for mission-critical applications that demand uninterrupted operation.

In conclusion, the NEC SX50 supercomputer stands out due to its advanced vector processing technology, scalability, energy efficiency, wide programming support, high-speed interconnect features, and robust reliability. These attributes make it an attractive solution for organizations seeking to tackle complex computational challenges and drive innovations in their respective fields.