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Hot mirror

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133: 36: 341: 199:, were unusually sensitive to infrared radiation, and tended to produce colors that were contaminated with infrared. This was particularly problematic with scenes that contained strong sources of infrared, such as fires, although the effect could be moderated by inserting a photographic hot mirror filter into the imaging pathway. Conversely, these cameras could be used for 288: 307: 236: 382: 207:
filter, more commonly known as an infrared filter, into the imaging pathway, most commonly by mounting the filter on the front of the lens.
132: 119: 286:, George A. Freeman, "Iodine-containing electric incandescent lamp with heat conserving envelope", issued 1965-09-28 57: 100: 72: 161: 53: 136:
Hot mirror in front of the image sensor of a DSLR. Note reddish reflection of ambient light, and teal edge of filter.
79: 46: 375: 176:. By transmitting visible light wavelengths while reflecting infrared, hot mirrors can also serve as dichromatic 215: 211: 86: 406: 244: 68: 302: 283: 164:
varying between zero and 45 degrees, and are useful in a variety of applications where the buildup of
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can damage components or adversely affect spectral characteristics of the illumination source.
196: 145: 352: 401: 321: 149: 259: 93: 153: 305:, Bulent E. Yoldas, "Heat mirror for incandescent lamp", issued 1982-08-24 395: 177: 157: 185: 160:
to pass. Hot mirrors can be designed to be inserted into the optical system at an
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Some early digital cameras designed for visible light capture, such as the
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by redirecting unwanted infrared frequencies back to the filament.
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Special reflective surface meant to aid in infrared light direction
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reflected by an infrared hot mirror range from about 750 to 1250
29: 152:, often employed to protect optical systems by reflecting 356: 60:. Unsourced material may be challenged and removed. 376: 8: 383: 369: 156:back into a light source, while allowing 120:Learn how and when to remove this message 227: 7: 337: 335: 58:adding citations to reliable sources 355:. You can help Knowledge (XXG) by 258:Melentijevic, Ilija (2015-03-04). 25: 339: 180:for specialized applications in 34: 260:"What is Infrared Photography?" 45:needs additional citations for 235:Hickey, Eamon (January 2005). 1: 237:"A Look Back at the NC2000" 423: 334: 214:incorporate hot mirrors, 193:Associated Press NC2000 182:fluorescence microscopy 351:-related article is a 137: 303:US patent 4346324 284:US patent 3209188 216:increasing efficiency 135: 201:infrared photography 54:improve this article 322:"A cool light bulb" 212:incandescent bulbs 138: 364: 363: 197:Nikon Coolpix 950 146:dielectric mirror 144:is a specialized 130: 129: 122: 104: 16:(Redirected from 414: 385: 378: 371: 343: 336: 326: 325: 318: 312: 311: 310: 306: 299: 293: 292: 291: 287: 280: 274: 273: 271: 270: 255: 249: 248: 243:. Archived from 241:Robgalbraith.com 232: 125: 118: 114: 111: 105: 103: 62: 38: 30: 21: 422: 421: 417: 416: 415: 413: 412: 411: 392: 391: 390: 389: 332: 330: 329: 320: 319: 315: 308: 301: 300: 296: 289: 282: 281: 277: 268: 266: 257: 256: 252: 234: 233: 229: 224: 203:by inserting a 162:incidence angle 150:dichroic filter 126: 115: 109: 106: 63: 61: 51: 39: 28: 23: 22: 15: 12: 11: 5: 420: 418: 410: 409: 404: 394: 393: 388: 387: 380: 373: 365: 362: 361: 344: 328: 327: 313: 294: 275: 250: 247:on 2011-07-15. 226: 225: 223: 220: 178:beam splitters 154:infrared light 128: 127: 42: 40: 33: 26: 24: 18:Heat reflector 14: 13: 10: 9: 6: 4: 3: 2: 419: 408: 405: 403: 400: 399: 397: 386: 381: 379: 374: 372: 367: 366: 360: 358: 354: 350: 345: 342: 338: 333: 323: 317: 314: 304: 298: 295: 285: 279: 276: 265: 264:Kolari Vision 261: 254: 251: 246: 242: 238: 231: 228: 221: 219: 217: 213: 208: 206: 202: 198: 194: 189: 187: 183: 179: 175: 171: 167: 163: 159: 158:visible light 155: 151: 147: 143: 134: 124: 121: 113: 110:December 2009 102: 99: 95: 92: 88: 85: 81: 78: 74: 71: –  70: 66: 65:Find sources: 59: 55: 49: 48: 43:This article 41: 37: 32: 31: 19: 407:Optics stubs 357:expanding it 346: 331: 316: 297: 278: 267:. Retrieved 263: 253: 245:the original 240: 230: 209: 190: 186:eye tracking 141: 139: 116: 107: 97: 90: 83: 76: 69:"Hot mirror" 64: 52:Please help 47:verification 44: 205:cold mirror 184:or optical 170:Wavelengths 396:Categories 269:2022-10-05 222:References 174:nanometers 166:waste heat 142:hot mirror 80:newspapers 402:Mirrors 94:scholar 349:optics 309:  290:  96:  89:  82:  75:  67:  347:This 101:JSTOR 87:books 353:stub 210:New 195:and 148:, a 73:news 56:by 398:: 262:. 239:. 188:. 140:A 384:e 377:t 370:v 359:. 324:. 272:. 123:) 117:( 112:) 108:( 98:· 91:· 84:· 77:· 50:. 20:)

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Heat reflector

verification
improve this article
adding citations to reliable sources
"Hot mirror"
news
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scholar
JSTOR
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dielectric mirror
dichroic filter
infrared light
visible light
incidence angle
waste heat
Wavelengths
nanometers
beam splitters
fluorescence microscopy
eye tracking
Associated Press NC2000
Nikon Coolpix 950
infrared photography
cold mirror
incandescent bulbs
increasing efficiency

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