Gläser für das Präzisionsblankpressen

Glass Type Catalogue Value After molding *1 Tg At αx10-7 DW S.g Available form *2 Coloration *3
  nd νd nd νd (°C) (°C)          
K-PSFn173 2.14780 17.3 ※7 ※7 406 431 97 1 7.03 (47)/42※6
K-PSFn203 2.01700 20.8 2.01105 20.8 444 466 91 1 6.17 (44)/40※6
K-PSFn2 2.00170 20.6 1.99670 20.6 480 514 92 1 5.48 (50)/40※6
K-PSFn1 1.90680 21.2 1.89948 21.4 498 543 102 1 4.15 (49)/39※6
K-VC91 1.88660 35.0 1.88176 34.9 589 638 95 1 4.87 48/36※6
K-VC90 1.85280 39.0 1.84859 38.9 583 633 94 1 4.98 45/34※6
K-VC99 1.85060 41.6 1.84604 41.5 616 653 73 1 5.15 42/32※6
K-PSFn3 1.83917 23.9 1.83352 24.0 477 515 118 1 3.90 (43)/38※6
K-VC89 1.81000 41.0 1.80589 40.9 528 559 83 1 4.75 40/34
K-VC100 1.80400 43.6 1.79916 43.5 570 609 72 1 4.71 40/34
K-LaFK50 1.77200 50.0 1.76831 49.6 560 592 90 1 5.20 37/29
K-LaFK50T 1.76600 49.8 ※7 ※7 576 612 81 1 4.75 37/30
K-VC82 1.75550 45.6 1.75029 45.4 526 563 80 1 4.25 38/33
K-CD120 1.72250 29.2 1.71468 29.6 508 549 119 1 3.01 43/36
K-ZnSF8 1.71430 38.9 1.71142 38.9 518 546 60 2 3.72 39/34
K-LaFK58 1.69560 59.0 ※7 ※7 542 577 93 1 4.56 36/28
K-LaFK55 1.69400 56.3 1.68874 55.7 514 556 91 1 4.34 37/29
K-VC80 1.69384 53.1 1.68984 52.8 530 566 94 1 3.81 36/29
K-CD45 1.69320 33.7 1.68673 34.1 470 507 121 1 3.13 41/35
K-VC78 1.66955 55.4 1.66625 55.2 520 556 100 1 3.44 35/28
K-PG395 1.65800 36.9 1.65295 36.8 363 392 159※5 1 3.50 38/35
K-LaFK60 1.63246 63.8 1.62847 63.2 485 528 114 1 4.29 38/28
K-PSK200 1.61305 59.0 1.61083 58.9 386 412 123 1 3.38 34/31
K-VC79 1.61035 57.9 1.60736 57.5 516 553 93 2 3.09 34/29
K-PSK300 1.59950 65.6 ※7 ※7 463 498 128 2 3.49 36/31
K-GFK68 1.59240 68.3 1.58999 68.1 512 536 152 1 4.51 34/28
K-PSK100 1.59170 60.7 1.58793 60.5 390 415 114 1 3.24 36/32
K-CSK120 1.58700 59.6 1.58444 59.2 498 536 91 2 3.00 35/31
K-GFK70 1.56907 71.3 1.56626 71.2 485 509 156 1 4.46 34/28
K-PG375 1.54250 62.9 1.53921 62.5 344 367 160※5 2 2.90 36/31
K-PMK30 1.52500 70.4 1.52003 69.9 528 572 87 2 2.60 33/29
K-PBK50 1.52250 62.3 1.52023 62.0 481 518 92 2 2.43 34/29
K-PBK40 1.51760 63.5 1.51497 63.4 501 549 73 2 2.39 33/29
K-PG325 1.50670 70.5 1.50506 70.3 288 317 165※4 1 3.00 34/30
K-PFK80 1.49700 81.5 1.49533 80.9 461 483 154 1 3.60 34/27
K-PFK85 1.48563 85.2 1.48375 85.0 452 484 163 1 3.97 34/29
K-PFK90 1.45880 90.0 1.45744 87.6 431 461 165 1 3.72 34/29
K-CaFK95 1.43425 95.0 1.43312 95.0 431 450 167 1 3.54 33/28

Tg: Transformation Point, At: Yielding Point, α: Thermal Expansion (100~300°C), DW: Chemical Durability
*1 *** Reference value after molding by SUMITA
*2 *** Available form:
○ Gobs or Polished Preform
△ Polished Preform
*3 *** Transmittance wavelength at 80%/5%
*4 *** Value (50~200°C)
*5 *** Value (50~250°C)
*6 *** Transmittance wavelength at 70%/5%
*7 *** Information on special request

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