Catalog of Bausch and Lomb Glasses

      This page is an effort to get the Bausch and Lomb glasses into a catalog on line. This catalog is for glasses that are no longer made to my knowledge but those who may have some glass made by Bausch and Lomb may be interested in getting the correct (as best that I can transcribe from a paper catalog) refractive indices for the glasses that Bausch and Lomb made.

I don't know the date of the catalog but indications are that it's from the '60s at the least as the ZIP code is included in the company address. That address is:

Bausch and Lomb
Special Products Division
PO Box 543
Rochester, Ny. 14602

There is a number on the last page of the catalog (I have a xerox copy of it) with the number 43-30,0871. The thing that is interesting about this catalog is the number of partial dispersion values given.

Note that the glasses are defined only by their 6 digit reference number and grouped together by their basic type. For those who don't know how this number is put together, the first three digits are the first three digits of the Nd value - 1 (or the numbers to the right of the decimal point) and the second three numbers are the first 3 digits of the VD value (decimal point between the second and third digit is dropped).

Also note that these values are superseded if you have the exact melt indices that should come with every piece of optical glass. Those values are often a bit different than these "stock" values listed here and are what the glass really is. If you don't have a sheet containing the exact values, these values will do for most work but you may have to adjust one or more curves on the optical design after building the optic to make the design work to spec.

Glass Catalog of Bausch and Lomb glasses.
Glass VD 1014 NA' NC ND Nd Ne NF Ng NG' Nh 365n
Type . 1014nm 766.5nm 656.3nm 589.3nm 587.6nm 546.1nm 486.1nm 435.8nm 434.1nm 404.7nm 365nm
Borosilicate Crown Glasses
498670 67.0 * 1.49316 1.49577 1.49800 1.49808 1.49984 1.50320 1.50717 1.50732 1.51048 *
506596 59.6 * 1.50058 1.50347 1.50600 1.50609 1.50811 1.51196 1.51656 1.51675 1.52039 *
511635 63.5 1.5017 1.50578 1.50860 1.51100 1.51107 1.51300 1.51665 1.52096 1.52114 1.52454 1.53057
517645 64.5 1.5076 1.51179 1.51461 1.51700 1.51707 1.51899 1.52262 1.52690 1.52709 1.53043 1.53644
Crown Glasses
513605 60.5 1.5030 1.50708 1.50999 1.51250 1.51258 1.51459 1.51846 1.52304 1.52324 1.52685 1.53332
518596 59.6 1.5083 0.51242 1.51544 1.51800 1.51807 1.52015 1.52413 1.52886 1.52906 1.53279 1.53951
523586 58.6 1.5130 1.51729 1.52036 1.52300 1.52307 1.52520 1.52929 1.53415 1.53435 1.53819 1.54505
524595 59.5 1.5142 1.51838 1.52140 1.52400 1.52408 1.52618 1.53021 1.53500 1.53520 1.53898 1.54578
Light Barium Crown
541599 59.9 1.53090 1.53522 1.53833 1.54100 1.54109 1.54323 1.54736 1.55266 1.55246 1.55633 1.56326
573568 56.8 * 1.56614 1.56954 1.57250 1.58259 1.57498 1.57962 1.58514 1.58538 1.58975 *
573574 57.4 1.56160 1.56619 1.56956 1.57250 1.57259 1.57497 1.57953 1.58497 1.58521 1.58951 1.59723
Dense Barium Crown
588612 61.2 1.57710 1.58184 1.58513 1.58800 1.58811 1.59036 1.59474 1.59992 1.60015 1.60424 *
611572 57.2 1.5993 1.60423 1.60785 1.61100 1.61109 1.61364 1.61853 1.62438 1.62462 1.62923 1.63754
611588 58.8 * 1.60439 1.60793 1.61100 1.61109 1.61357 1.61853 1.62396 1.62421 1.62867 *
612595 59.5 * 1.60544 1.60896 1.61200 1.61209 1.61455 1.61924 1.52484 1.62508 1.62946 *
617549 54.9 1.6048 1.60995 1.61370 1.61700 1.61710 1.61977 1.62493 1.63115 1.63142 1.63642 1.64516
617551 55.1 * 1.60994 1.61371 1.61700 1.61710 1.61976 1.62490 1.63104 1.63130 1.63617 *
620603 60.3 * 1.61342 1.61596 1.62000 1.62011 1.62255 1.62724 1.63282 1.63306 1.63748 *
623569 56.9 * 1.61606 1.61978 1.62300 1.62309 1.62571 1.63073 1.63675 1.63701 1.64171 *
638555 55.5 1.6254 1.63074 1.63461 1.63800 1.63810 1.64084 1.64611 1.65243 1.65271 1.65772 *
651558 55.8 * 1.64362 1.64757 1.65100 1.65109 1.65389 1.65924 1.66563 1.66591 1.67097 *
Extra Dense Barium Crown
657509 50.9 1.6431 1.64894 1.65323 1.65700 1.65714 1.66018 1.66614 1.67327 1.67358 1.67927 1.68981
657572 57.2 * 1.64972 1.65362 1.65700 1.65710 1.65984 1.66510 1.67134 1.67162 1.67649 *
Crown Flint
524510 51.0 1.5129 1.51759 1.52100 1.52400 1.52408 1.52655 1.53127 1.53702 1.53726 1.54185 1.55029
526546 54.6 1.5151 1.51954 1.52277 1.52560 1.52568 1.52797 1.53239 1.53770 1.53793 1.54215 1.54981
529516 51.6 1.5174 1.52217 1.52560 1.52860 1.52869 1.53112 1.53584 1.54153 1.54178 1.54633 1.55493
Light Barium Flint
588534 53.4 1.5762 1.518110 1.58479 1.58800 1.58809 1.59072 1.59580 1.60187 1.60212 1.60697 1.61579
Barium Flint
570481 48.1 1.5578 1.56300 1.56695 1.57040 1.57049 1.57332 1.57880 1.58548 1.58575 1.59114 1.60116
584460 46.0 1.5706 1.57598 1.58013 1.58380 1.58391 1.58693 1.59282 1.60002 1.60033 1.60615 1.61698
605436 43.6 1.5910 1.59682 1.60130 1.60530 1.60542 1.60872 1.61518 1.62310 1.62345 1.62987 1.64191
670472 47.2 * 1.66123 1.66585 1.67000 1.67008 1.67384 1.68004 1.68801 1.68836 1.69472 *
Dense Barium Flint
617385 38.5 * 1.60731 1.61242 1.61700 1.61714 1.62093 1.62843 1.63772 1.63811 1.64571 *
Extra Light Flint
541473 47.3 * 1.53386 1.53768 1.54100 1.54110 1.54382 1.54912 1.55555 1.55583 1.56102 *
550458 45.8 1.5371 1.54228 1.54623 1.54970 1.54981 1.55267 1.55824 1.56506 1.56534 1.57085 *
559455 45.5 1.5456 1.55086 1.55495 1.55850 1.55860 1.56182 1.56722 1.57417 1.57447 1.58010 1.59060
Light Flint
573425 42.5 1.5585 1.56425 1.56861 1.57250 1.57262 1.57581 1.58208 1.58978 1.59011 1.59637 1.60811
Dense Flint
596397 39.7 * 1.58649 1.59130 1.59560 1.59574 1.59929 1.60632 1.61498 1.61538 1.62245 *
605380 38.0 1.5889 1.59538 1.60045 1.60500 1.60514 1.60892 1.61638 1.62561 1.62601 1.63358 1.64792
617366 36.6 1.6001 1.60684 1.61218 1.61700 1.61715 1.62115 1.62904 1.63887 1.63929 1.64740 1.66280
621362 36.2 * 1.61066 1.61610 1.62100 1.62114 1.62520 1.63325 1.64327 1.64371 1.65197 *
635350 35.0 1.6169 1.62417 1.62985 1.63500 1.63518 1.63945 1.64797 1.65859 1.65908 1.66784 *
Extra Dense Flint
649338 33.8 1.6301 1.63754 1.64355 1.64900 1.64916 1.65370 1.66275 1.67408 1.67458 1.68397 1.70190
668323 32.3 1.6478 1.65573 1.66215 1.66800 1.66819 1.67307 1.68285 1.69520 1.69565 1.70585 1.72567
673322 32.2 1.6521 1.66012 1.66663 1.67250 1.67269 1.67764 1.68751 1.69984 1.70042 1.71084 1.73080
689309 30.9 1.6673 1.67584 1.68271 1.68900 1.68919 1.69446 1.70501 1.71827 1.71886 1.72996 *
720293 29.3 1.6963 1.70555 1.71309 1.72000 1.72022 1.72602 1.73766 1.75239 1.75304 1.76542 1.79005
751278 27.8 1.7248 1.73473 1.74303 1.75060 1.75084 1.75721 1.77005 1.78637 1.78709 1.80089 *
Short Flint
613442 44.2 * 1.60451 1.60894 1.61300 1.61311 1.61640 1.62280 1.63055 1.63086 1.63714 *
Lanthanum Crown
651584 58.4 * 1.64389 1.64771 1.65100 1.65110 1.65372 1.65885 1.66486 1.66510 1.66983 *
691548 54.8 * 1.68305 1.68730 1.69100 1.69111 1.69411 1.69991 1.70677 1.70708 1.71248 *
Lanthanum Flint
720362 36.2 * 1.70802 1.71434 1.72000 1.72016 1.72488 1.73422 1.74586 1.74636 1.75605 *
720420 42.0 * 1.70957 1.71508 1.72000 1.72016 1.72422 1.73220 1.74196 1.74239 1.74965 *
720460 46.0 * 1.71033 1.71543 1.72000 1.72013 1.72385 1.73109 1.73995 1.74031 1.74753 *
720475 37.5 * 1.71063 1.71561 1.72000 1.72013 1.72375 1.73077 1.73927 1.73963 1.74645 *
867310 31.0 * 1.85036 1.85910 1.86700 1.86726 1.87389 1.88706 1.90396 1.90465 1.91874 *

Partial Dispersions of the glasses.
Glass NF-NC NC-NA' ND-NC Ne-ND NF-Ne NG'-NF Nh-NG' Specific Stain
Type * /NF-NC /NF-NC /NF-NC /NF-NC /NF-NC /NF-NC Gravity Time
Borosilicate Crown Glasses
498670 0.00744 0.00261
0.351
0.00223
0.300
0.00184
.247
0.00336
0.452
0.00412
0.554
0.00316
0.425
2.44 100+
506596 0.00849 0.00289
0.340
0.00253
0.289
0.00211
0.248
0.00385
0.454
0.00479
0.564
0.00364
0.429
2.47 100+
511635 0.00805 0.00282
0.350
0.00240
0.298
0.00200
0.248
0.00365
0.453
0.00449
0.558
0.00340
0.422
2.48 100+
517645 0.00801 0.00282
0.352
0.00239
0.298
0.00199
0.248
0.00363
0.453
0.00447
0.558
0.00334
0.417
2.53 100+
Crown Glasses
513605 0.00847 0.00291
0.344
0.00251
0.296
0.00209
0.247
0.00387
0.457
0.00478
0.564
0.00361
0.426
2.51 100+
518596 0.00869 0.00302
0.348
0.00256
0.295
0.00215
0.247
0.00398
0.458
0.00493
0.567
0.00373
0.429
2.54 100+
523586 0.00893 0.00307
0.344
0.00264
0.296
0.00220
0.246
0.00409
0.458
0.00506
0.567
0.00384
0.430
2.53 100+
524595 0.00881 0.00302
0.343
0.00260
0.295
0.00218
0.248
0.00403
0.457
0.00499
0.567
0.00378
0.428
2.53 100+
Light Barium Crown
541599 0.00903 0.00312
0.346
0.00267
0.296
0.00223
0.247
0.00413
0.457
0.00512
0.567
0.00384
0.429
2.84 100+
573568 0.01008 0.00340
0.377
0.00296
0.294
0.00248
0.246
0.00464
0.460
0.00576
0.571
0.00437
0.434
3.20 22
573574 0.00997 0.00337
0.338
0.00294
0.295
0.00247
0.248
0.00456
0.457
0.00568
0.570
0.00430
0.431
3.21 9
Dense Barium Crown
588612 0.00961 0.00329
0.342
0.00287
0.298
0.00236
0.245
0.00438
0.455
0.00541
0.562
0.00401
0.425
3.29 0.03
611572 0.01068 0.00362
0.339
0.00315
0.295
0.00264
0.247
0.00489
0.458
0.00609
0.570
0.00461
0.432
3.57 0.033
611588 0.01039 0.00354
0.341
0.00307
0.295
0.00257
0.247
0.00475
0.457
0.00589
0.567
0.00446
0.429
3.58 0.017
612595 0.01028 0.00352
0.342
0.00304
0.296
0.00255
0.248
0.00469
0.456
0.00584
0.568
0.00438
0.426
3.45 0.02
617549 0.01123 0.00375
0.334
0.00330
0.294
0.00277
0.247
0.00516
0.459
0.00649
0.578
0.00492
0.438
3.66 0050
617551 0.01119 0.00377
0.337
0.00329
0.294
0.00276
0.247
0.00514
0.459
0.00640
0.572
0.00487
0.435
3.36 0.2
620603 0.01028 0.00354
0.344
0.00304
0.296
0.00255
0.248
0.00469
0.456
0.00582
0.566
0.00442
0.430
3.58 **
623569 0.01095 0.00372
0.340
0.00322
0.294
0.00271
0.247
0.00502
0.458
0.00628
0.573
0.00470
0.429
3.59 **
638555 0.01150 0.00387
0.337
0.00339
0.285
0.00284
0.247
0.00527
0.458
0.00660
0.574
0.00501
0.436
3.59 **
651558 0.01167 0.00395
0.338
0.00343
0.294
0.00289
0.248
0.00535
0.456
0.00667
0.572
0.00506
0.434
3.81 **
Extra Dense Barium Crown
657509 0.01291 0.00429
0.332
0.00377
0.292
0.00318
0.246
0.00695
0.462
0.00744
0.576
0.00569
0.441
3.69 15
657572 0.01148 0.00390
0.340
0.00338
0.294
0.00284
0.247
0.00526
0.458
0.00652
0.568
0.00487
0.424
3.74 **
Crown Flint
524510 0.01027 0.00341
0.332
0.00300
0.292
0.00255
0.248
0.00472
0.459
0.00599
0.583
0.00459
0.446
2.70 100+
526546 0.00962 0.00323
0.336
0.00283
0.294
0.00237
0.246
0.00442
0.459
0.00554
0.576
0.00422
0.439
2.54 100+
529516 0.01024 0.00343
0.335
0.00300
0.293
0.00252
0.246
0.00472
0.461
0.00594
0.580
0.00455
0.444
2.73 100+
Light Barium Flint
588534 0.01101 0.00369
0.335
0.00321
0.292
0.00272
0.247
0.00508
0.461
0.00632
0.574
0.00485
0.441
3.33 0.033
Barium Flint
570481 0.01185 0.00395
0.333
0.00345
0.291
0.00292
0.246
0.00548
0.462
0.00695
0.586
0.00539
0.455
3.17 100+
584460 0.01269 0.00415
0.327
0.00367
0.289
0.00313
0.247
0.00589
0.464
0.00751
0.596
0.00582
0.463
3.31 100+
605436 0.01388 0.00448
0.323
0.00400
0.288
0.00342
0.246
0.00646
0.465
0.00827
0.596
0.00642
0.448
3.52 29
670472 0.01419 0.00462
0.326
0.00415
0.293
0.00348
0.245
0.00656
0.462
0.00832
0.586
0.00636
0.448
3.78 100+
Dense Barium Flint
617385 0.01601 0.00511
0.319
0.00468
0.286
0.00393
0.245
0.00750
0.468
0.00968
0.605
0.00760
0.475
3.61 100+
Extra Light Flint
541473 0.01100 0.00382
0.334
0.00332
0.290
0.00282
0.246
0.00530
0.463
0.00671
0.587
0.00519
0.454
2.91 100+
550458 0.01201 0.00395
0.329
0.00347
0.289
0.00297
0.247
0.00557
0.464
0.00710
0.591
0.00551
0.459
2.95 100+
559455 0.01227 0.00409
0.333
0.00355
0.289
0.00302
0.246
0.00570
0.465
0.00725
0.591
0.00563
0.459
3.05 100+
Light Flint
573425 0.01347 0.00436
0.324
0.00389
0.289
0.00331
0.246
0.00627
0.465
0.00803
0.596
0.00626
0.465
3.19 100+
Dense Flint
596397 0.01502 0.00481
0.320
0.00430
0.286
0.00369
0.246
0.00703
0.468
0.00906
0.603
0.00707
0.471
3.41 100+
605380 0.01593 0.00507
0.318
0.00455
0.286
0.00392
0.246
0.00746
0.468
0.00963
0.605
0.00757
0.475
3.49 100+
617366 0.01686 0.00534
0.317
0.00482
0.286
0.00415
0.246
0.00789
0.468
0.01025
0.608
0.00811
0.481
3.64 100+
621362 0.01715 0.00544
0.317
0.00490
0.286
0.00420
0.245
0.00805
0.469
0.01046
0.610
0.00826
0.482
3.67 100+
635350 0.01812 0.00568
0.313
0.00515
0.284
0.00445
0.246
0.00852
0.470
0.01111
0.613
0.00876
0.483
3.70 100+
Extra Dense Flint
649338 0.01920 0.00601
0.313
0.00545
0.284
0.00470
0.245
0.00905
0.471
0.01183
0.616
0.00939
0.489
3.91 46
668323 0.02070 0.00462
0.310
0.00585
0.283
0.00507
0.245
0.00978
0.473
0.01280
0.618
0.01020
0.493
4.03 *
673322 0.020880 0.00651
0.312
0.00587
0.281
0.00514
0.246
0.00987
0.473
0.01291
0.618
0.01042
0.499
3.97 100+
689309 0.02230 0.00687
0.308
0.00629
0.282
0.00546
0.245
0.01055
0.473
0.01385
0.621
0.01110
0.498
4.24 1.75
720293 0.02457 0.00754
0.307
0.00691
0.281
0.00602
0.245
0.01164
0.474
0.01538
0.628
0.01238
0.504
4.51 4
751278 0.02702 0.00830
0.307
0.00757
0.280
0.00661
0.245
0.01284
0.475
0.01704
0.631
0.01380
0.511
4.74 3
Short Flint
613442 0.01386 0.00443
0.320
0.00406
0.292
0.00340
0.245
0.00640
0.461
0.00806
0.581
0.00628
0.453
3.18 **
Lanthanum Crown
651584 0.01114 0.00382
0.343
0.00329
0.295
0.00272
0.244
0.00513
0.460
0.00625
0.561
0.00473
0.423
3.75 .1
691548 0.01261 0.00425
0.337
0.00370
0.247
0.00311
0.247
0.00580
0.460
0.00717
0.569
0.00540
0.428
4.03 **
Lanthanum Flint
720362 0.01988 0.00632
0.318
0.00556
0.285
0.00488
0.245
0.00934
0.470
0.01214
0.611
0.00969
0.487
4.21 **
720420 0.01712 0.00551
0.322
0.00492
0.287
0.00472
0.246
0.00798
0.466
0.01019
0.595
0.00726
0.424
4.10 **
720460 0.01566 0.00510
0.326
0.00457
0.292
0.00385
0.246
0.00724
0.462
0.00922
0.589
0.00722
0.461
4.20 **
720475 0.01516 0.00498
0.328
0.00439
0.290
0.00375
0.247
0.00702
0.463
0.00886
0.584
0.00682
0.449
4.04 **
867310 0.02796 0.00974
0.313
0.00790
0.283
0.00689
0.247
0.01317
0.471
0.01759
0.629
0.01409
0.504
5.30 60

Notes:
Locations with a "*" in them are values not tested for. These values that are missing are in the infrared and ultraviolet colors and some Stain Test times.
Locations with a "**" in them are glasses that dissolve in HNO3
Glasses with a marked after them were also available with a non-browning formulation so that in the face of high gamma radiation they didn't brown like normal glass will and were marked with the number and a "P" after them. If you find such a glass, all that is really different is that it can be used in a nuclear reactor without the browning problems that normal glasses would do. Also, as a result of the conditioning, the transmission is slightly less than that of the regular glass, mostly in the short wavelengths over 500microns.


For other glass catalogs you may want to go to the Schott website which has a Windows program which has their whole catalog in an interesting program and then there is the OHara website which has a catalog in Excel format (unfortunately, I don't have a copy of Excel which is new enough to read the file) which shows all of their glasses and also another file which relates their glass names with that of the Schott system.
Sorry that there are two tables but otherwise the page would be extremely wide. The best thing to do is to take and copy the tables to your word processor and print in a font size that fits the page. There is a space after each entry so you can do a global search for a space and change into something else like a tab character and thus get the proper spacing.
This whole catalog has been hand typed into the page so there may be transcription errors. If you find any, please let me know. I have done as good as I can to make sure that there are no errors but there is always the possibility of there being one or more. I will again admonish those who are actually making a refractor using these glasses to use the actual refractive indices that the melt sheet shows rather than these ones as you will end up with a better refractor with them. Preliminary design is what these charts are for and this is what you should consider them to be worth. Do the basic design and finalize the design with the melt data.