Optical glass price references & details table

Which optical glass to choose for your optical components ? It depends mainly on optical glass optical characteristics but one should not overlook two other important points : optical glass price and optical glass availability.

Below you’ll find a comprehensive chart including most of the optical glass references, this chart is based on CDGM references and also includes Schott, Hoya and Ohara glass equivalents.

Optical glass price references

In the below chart, price reference base is the most common optical glass H-K9L/N-BK7 which have a reference value of 10. All the other glass reference price shows how much times they are more expensive (or less) than H-K9L. (for example H-FK61 have a relative price of 126, meaning it is 12.6 times more expensive that H-K9L.

Optical glass availability

Unlike float glass, optical batch are manufacturer in batch, these batches are scheduled several month in advance which means that in case on high demand some references availability maybe short. The availability that is shown in below chat is an information about the frequency of production of each reference and the existence of security stock.

Optical glass detailed table

Optical glass from CDGM and equivalents with price reference.

CDGM Code	CDGM Type	nd	Vd	Density (g/cm3)	Availability	Relative Price	SCHOTT Code	SCHOTT Type	HOYA Code	HOYA Type	OHARA Code	OHARA Type
497816	H-FK61	1.497	81.61	3.7	on stock	80	497816	N-PK52A	497816	FCD1	497816	S-FPL51
497816	H-FK61B	1.497	81.61	3.68	on stock	74	497816	N-PK52A	497816	FCD1B	497816	S-FPL51
457903	H-FK71	1.4565	90.27	3.63	common	144			457903	FCD10
438945	H-FK95N	1.4378	94.52	3.52	very common	158			(437-951)	(FCD100)	-439950	(S-FPL53)
470669	H-QK1	1.47047	66.88	2.3	low avaibility	98
487704	H-QK3L	1.48749	70.44	2.43	on stock	23	487704	N-FK5	487-704	FC5	487702	S-FSL5
500621	H-K 1	1.49967	62.07	2.47	low avaibility	126
500660	H-K2	1.50047	66.02	2.42	low avaibility	61	500658	BK4	500-660	BSC4	500660	BSL4
505647	H-K3	1.50463	64.72	2.4	low avaibility	61	505650	BK5
508611	K4A	1.50802	61.05	2.43		69
510634	H-K5	1.51007	63.36	2.47	low avaibility	51	510635	BK1	510-634	BSC1	510636	BSL1
511605	H-K6	1.51112	60.46	2.53	low avaibility	51	511604	K7	511605	C7	511605	NSL7
515606	H-K7	1.51478	60.63	2.54	low avaibility	51
516568	H-K8	1.51602	56.79	2.58	low avaibility	50
517642	H-K9L	1.5168	64.2	2.52	on stock	10	517642	N-BK7	517-642	BSC7	516641	S-BSL7
517642	H-K9LGT	1.5168	64.2	2.52	on stock	20	517642	N-BK7HT
517642	H K9L*	1.5168	64.2	2.52	on stock	7	517642	N-BK7	517642	BSC7	516641	S-BSL7
517642	H-K9LA	1.5168	64.2	2.51	on stock	10	517642	N-BK7	517-642	BSC7	516641	S-BSL7
518590	H-K10	1.51818	58.95	2.5	common	36			518-590	E-C3	518590	S-NSL3
526602	H-Kll	1.52638	60.16	2.69	low avaibility	47	526600	BALK1	526-601	BACL1	526600	NSL21
534555	H-K12	1.53359	55.47	2.72	low avaibility	47	534553	ZK5	534-554	ZNC5	534555	ZSL5
522595	H-K50	1.52249	59.48	2.52	low avaibility	29	522595	N-K5	522-595	C5	522598	S-NSL5
523586	H-K51	1.52307	58.64	2.53	on stock	16			523586	C12	523585	NSL51
618634	H-ZPK1A	1.618	63.39	3.61	on stock	70	618634	N-PSK53A	618-634	PCD4	618634	S-PHM52
603655	H-ZPK2A	1.603	65.47	3.5	very common	84					603655	S-PHM53
593673	H-ZPK3	1.59349	67.29	3.36	low avaibility	190			593-670	PCD51
593683	H-ZPK5	1.5928	68.34	4.29	on stock	97			593-686	FCD515
569713	H-ZPK7	1.56907	71.3	4.36	very common	169
530605	H-BaK1	1.53028	60.47	2.74	low avaibility	68
540597	H BaK2	1.53996	59.72	2.84	uncommon	24	540597	N-BAK2	540-597	BAC2	540595	S-BAL12
547628	H-BaK3	1.54678	62.78	2.84	uncommon	31					548628	BAL21
552634	H-BaK4	1.55248	63.37	2.9	common	29	552635	N-PSK3	552-634	PCD3	552638	BAL23
561583	H-BaK5	1.56069	58.34	3.01	low avaibility	33
564608	H-BaK6	1.56388	60.76	3.05	common	27	564608	N-SK11	564-608	BACD11	564607	S-BAL41
569560	H-BaK7	1.56883	56.04	2.83	on stock	10	569560	N-BAK4	569-560	BAC4	569563	S-BAL14
569560	H-BaK7GT	1.56883	56.04	2.83	on stock	23	569560	N-BAK4HT
569561	H-BaK7A	1.56883	56.12	2.84	low avaibility	13	569560	N-BAK4	569-560	BAC4	569563	S-BAL14
573575	H-BaK8	1.5725	57.49	3.18	common	25	573576	N-BAK1	573575	BAC1	573578	S-BAL11
569630	H-ZK1	1.56888	62.96	3.06	low avaibility	46	569631	PSK2	569-631	PCD2	569631	BAL22
583595	H-ZK2	1.58313	59.46	3.24	uncommon	31	583595	SK12	583-595	BACD12	583594	S-BAL42
589613	H-ZK3	1.58913	61.25	3.26	on stock	11	589613	N-SK5	589-613	BACD5	589612	S-BAL35
589613	H-ZK3A	1.58913	61.25	3.31	on stock	10	589613	N-SK5	589-613	BACD5	589612	S-BAL35
609589	H-ZK4	1.60881	58.86	3.53	low avaibility	33	609589	SK3	609-589	BACD3	609590	BSM3
611558	H-ZK5	1.61117	55.77	3.58	low avaibility	35	611559	SK8	611-558	BACD8	611559	BSM8
613586	H-ZK6	1.61272	58.58	3.54	common	22	613586	N-SK4	613586	BACD4	613587	S-BSM4
613604	H-ZK7A	1.61309	60.36	3.41	very common	11
613606	H-ZK7	1.61309	60.58	3.51	low avaibility	13
614551	H-ZK8	1.61405	55.12	3.58	low avaibility	43	614552	SK9	614-551	BACD9	614550	S-BSM9
620603	H-ZK9B	1.62041	60.34	3.58	on stock	10	620603	N-SK16	620-603	BACD16	620603	S-BSM16
620603	H-ZK9A	1.62041	60.34	3.53	common	17	620603	N-SK16	620-603	BACD16	620603	S-BSM16
622567	H-ZK10	1.6221	56.71	3.63	low avaibility	17
623569	H-ZK10L	1.6228	56.91	3.63	common	20	623570	N-SK10	623-569	E-BACD10	623570	S-BSM10
639555	H-ZK11	1.63854	55.45	3.69	on stock	10	639554	N-SK18	639-555	BACD18	639554	S-BSM18
603606	H-ZK14	1.60311	60.6	3.44	on stock	18	603606	N-SK14	603607	BACD14	603607	S-BSM14
617539	H-ZK20	1.6172	53.91	3.66	common	26	617539	SSK1	617539	BACED1	617540	BSM21
623581	H-ZK21	1.62299	58.12	3.56	on stock	18	623580	N-SK15	623-581	BACD15	623582	S-BSM15
607567	H-ZK50	1.60738	56.65	3.54	common	26	607567	N-SK2	607-567	BACD2	607568	S-BSM2
607567	H-ZK50GT	1.60738	56.65	3.54	common	36	607567	N-SK2HT
660574	H-LaK1	1.6595	57.35	3.94	low avaibility	46	660573	LAK11	660-573	LAC11
692545	H-LaK2A	1.69211	54.54	3.94	very common	34
747510	H-LaK3	1.74693	50.95	4.08	low avaibility	94
640602	H-LaK4L	1.64	60.2	2.99	very common	53	640601	N-LAK21	640-602	LACL60	640601	S-BSM81
678555	H-LaK5A	1.6779	55.52	3.8	common	55	678552	N-LAK12	678-555	LAC12	678553	S-LAL12
694534	H-LaK6A	1.6935	53.38	3.59	low avaibility	78	694533	N-LAK13	694-533	LAC13	694532	S-LAL13
713538	H-LaK7A	1.713	53.83	3.74	on stock	39	713538	N-LAK8	713-539	LAC8	713539	S-LAL8
720503	H-LaK8A	1.72	50.28	3.88	low avaibility	74	720506	N-LAK10	720-503	LAC10	720502	S-LAL10
720503	H-LaK8B	1.72	50.34	3.77	low avaibility	78	720506	N-LAK10	720-503	LAC10	720502	S-LAL10
651559	H-LaK10	1.65113	55.89	3.73	uncommon	50	651559	N-LAK22	650-557	LACL12	651562	S-LAL54
665546	H-LaK11	1.66461	54.61	4.02	uncommon	46
697562	H-LaK12	1.6968	56.18	3.71	uncommon	66	697562	LAK24			697565	LAL64
652584	H-LaK50A	1.6516	58.4	3.5	common	68	652585	N-LAK7	652-584	LAC7	652585	S-LAL7
697555	H-LaK51A	1.6968	55.53	3.56	on stock	39	697554	N-LAK14	697-555	LAC14	697555	S-LAL14
729547	H-LaK52	1.72916	54.68	4.02	on stock	46	729545	N-LAK34	729-547	TAC8	729547	S-LAL18
755523	H-LaK53B	1.755	52.32	4.22	on stock	55	755523	N-LAK33B	755-523	TAC6	755523	S-YGH51
755523	H-LaK53A	1.755	52.32	4.39	low avaibility	116
734515	H-LaK54	1.734	51.49	4.01	very common	68			734-511	TAC4	734515	S-LAL59
691548	H-LaK59A	1.691	54.82	3.94	low avaibility	63	691547	N-LAK9	691-547	LAC9	691548	S-LAL9
741526	H-LaK61	1.741	52.64	4.1	low avaibility	86			741-526	TAC2	741527	S-LAL61
670517	H-LaK67	1.67	51.7	3.73	low avaibility	77					670516	LAL53
517522	H-KF6	1.51742	52.15	2.47	common	36			517-522	E CF6	517524	S-NSL36
548458	H-QF1	1.54814	45.82	2.58	common	46			548-458	E-FEL1	548458	S-TIL1
548459	QF1	1.54811	45.87	2.94		47
575415	H-QF3	1.57501	41.5	2.6	uncommon	41					575415	S-TIL27
575413	QF3	1.57502	41.31	3.18		40
582420	QF5	1.58215	42.03	3.22		35	582421	LF3	582-420	FL3	582421	PBL23
532488	H-QF6A	1.53172	48.84	2.52	common	43	532489	N-LLF6	532-488	E-FEL6	532489	S-TIL6
532488	QF6	1.53172	48.76	2.78		46
541472	H-QF 8	1.54072	47.23	2.54	uncommon	45			541-472	E-FEL2	541472	S-TIL2
541472	QF8	1.54072	47.2	2.86		56
596392	H-QF14	1.59551	39.22	2.62	low avaibility	47			596-392	E-F8	596392	S-TIM8
581409	H-QF50	1.58144	40.89	2.6	common	41			581-409	E-FL5	581407	S-TIL25
581408	H-QF50A	1.58144	40.75	2.61	common	41			581-409	E-FL5	581407	S-TIL25
581409	QF50	1.58144	40.89	3.23	low avaibility	28
567428	H-QF56	1.56732	42.81	2.62	uncommon	43			567-428	E-FL6	567428	S-TIL26
603380	H-F1	1.60342	38.01	2.63	very common	25			603-380	E-F5	603380	S-TIM5
603380	F1	1.60342	38.01	3.43		20	603380	F5	603-380	F5	603380	PBM5
613370	H-F2	1.61293	37	2.65	common	27			613370	E-F3	613370	S-TIM3
613370	F2	1.61293	36.96	3.5		20	613370	F3	613-370	F3	613370	PBM3
617367	H-F3	1.61659	36.65	2.68	low avaibility	29
617366	F3	1.61659	36.61	3.57		20	617366	Fil	617366	F4	617366	PBM4
620364	H-F4	1.62005	36.35	2.67	on stock	16	620364	N-F2	620-363	E-F2	620363	S-TIM2
620364	F4	1.62005	36.35	3.57	low avaibility	14	620364	F2	620-363	F2	620363	PBM2
624359	H-F5	1.62435	35.92	2.69	low avaibility	43
624359	F5	1.62435	35.92	3.64		20					621359	PBM11
625356	F6	1.62495	35.57	3.6		25	625356	F7	625-356	F7
636354	F7	1.63636	35.35	3.73		26	636353	F6	636-353	F6	636354	PBM6
626357	H-F13	1.62588	35.7	2.69	low avaibility	44			626-357	E-F1	626357	S-TIM1
626357	F 13	1.62588	35.7	3.63		25	626357	F1	626-357	F1	626357	PBM1
640345	H-F51	1.6398	34.46	2.76	low avaibility	46			640-346	E FD7	640345	S-TIM27
570495	H BaF2	1.5697	49.45	2.82	low avaibility	61
580537	H BaF3	1.57957	53.71	3.14	low avaibility	61	580539	N-BALF4
583466	H BaF4	1.58267	46.6	2.91	low avaibility	57
583465	BaF4	1.58271	46.47	3.28		45
606439	H BaF5	1.60562	43.88	2.97	low avaibility	77	606437	N-BAF4			606437	S-BAM4
608462	H BaF6	1.60801	46.2	3.11	low avaibility	57	-609466	(N-BAF52)
614400	H BaF7	1.61413	39.99	2.88	low avaibility	81
614400	BaF7	1.61413	40.03	3.56		49
626391	H-BaF8	1.62604	39.07	2.96	low avaibility	64	626390	BASF1	626-391	BAFD1	626392	BAM21
622532	H-ZBaF1	1.6223	53.17	3.57	low avaibility	43	622533	N-SSK2			622532	S-BSM22
640483	ZBaF2	1.63962	48.27	3.83		41
657511	H-ZBaF3	1.65691	51.12	3.77	uncommon	29
664355	H-ZBaF4	1.66426	35.48	3.11	low avaibility	52	664360	N-BASF2
671473	H-ZBaF5	1.67103	47.29	3.58	low avaibility	38
667484	H-ZBaF16	1.66672	48.42	3.59	common	33	667484	BAFN11	667-483	BAF11	667483	S-BAH11
668419	ZBaF17	1.66755	41.93	3.8		45	668419	BASF6	668-419	BAFD6	668419	BAH26
702412	H-ZBaF20	1.70154	41.15	3.64	very common	28	702410	N-BASF52	702-412	BAFD7	702412	S-BAH27
723380	H-ZBaF21	1.72341	37.99	3.62	very common	28			723380	BAFD8	723380	S-BAH28
658509	H-ZBaF50	1.65844	50.85	3.77	very common	24	658509	N-SSK5	658-509	BACED5	658509	S-BSM25
683445	ZBaF51	1.68273	44.5	4.14		37	683445	BAF50	683-447	BAF22	683447	BAH51
670472	H-ZBaF52	1.67003	47.2	3.57	common	29	670471	N-BAF10	670-472	BAF10	670473	S-BAH10
648338	H-ZF1	1.64769	33.84	2.73	common	21	648338	N-SF2	648-338	E-FD2	648338	S-TIM22
648339	H-ZF1A	1.64769	33.89	2.79	on stock	19	648338	N-SF2	648-338	E-FD2	648338	S-TIM22
648338	ZF1	1.64769	33.84	3.84		16	648339	SF2	648-338	FD2	648338	PBM22
673322	H-ZF2	1.6727	32.17	2.9	on stock	19	673323	N-SF5	673322	E-FD5	673321	S-TIM25
673322	ZF2	1.6727	32.17	4.08		16	673322	SF5	673322	FD5	673321	PBM25
717295	H-ZF3	1.71736	29.5	3.06	on stock	29	717296	N-SF1	717295	E-FD1	717295	S-TIH1
717295	ZF3	1.71736	29.5	4.46		22	717295	SF1	717295	FD1	717295	PBH1
728283	H-ZF4A	1.72825	28.32	3.05	on stock	26	728285	N-SF10	728-283	E-FD10	728285	S-TIH10
728283	H-ZF4AGT	1.72825	28.32	3.05	on stock	29
728283	ZF4	1.72825	28.32	4.51		20	728284	SF10	728-283	FD10	728285	PBH10
740283	H-ZF5	1.74	28.3	3.16	on stock	54					740283	S-TIH3
740282	ZF5	1.74	28.24	4.65		25	740282	SF3	740-282	FD3	740283	PBH3
755275	H-ZF6	1.7552	27.53	3.24	on stock	43	755274	N-SF4	755-275	E-FD4	755275	S-TIH4
755275	ZF6	1.7552	27.53	4.78	on stock	17	755276	SF4	755-275	FD4	755275	PBH4
805255	H-ZF7LA	1.80518	25.46	3.35	on stock	49	805254	N-SF6	805-255	FD60	805254	S-TIH6
805255	H-ZF7LAGT	1.80518	25.46	3.35	on stock	49	805254	N-SF6HT ultra	805-255	FD60-w
806254	ZF7	1.80627	25.37	5.19	common	25
805255	ZF7L	1.80518	25.46	5.19	on stock	25	805254	SF6	805-255	FD6	805254	PBH6
805255	ZF7LGT	1.80518	25.46	5.19	low avaibility	45
654337	ZF8	1.65446	33.65	3.91		60	654337	SF9	654-337	FD9	654336	PBM29
689312	H-ZF10	1.68893	31.16	2.92	very common	34	689313	N-SF8	689-312	E-FD8	689311	S-TIM28
689312	ZF10	1.68893	31.18	4.21		45	689313	SF8	689-312	FD8	689311	PBM28
699301	H-ZF11	1.69894	30.05	2.95	very common	36	699302	N-SF15	699-301	E-FD15	699301	S-TIM35
699301	ZF11	1.69895	30.07	4.06		45	699302	SF15	699-301	FD15	699301	PBM35
762266	H-ZF12	1.76182	26.61	3.17	very common	71	762265	N-SF14	762-266	FD140	762265	S-TIH14
762266	ZF12	1.76182	26.55	4.64		60	762265	SF14	762-266	FD14	762265	PBH14
785257	H-ZF13	1.78472	25.72	3.25	on stock	49	785257	N-SF11	785-257	FD110	785257	S-TIH11
785257	H-ZF13GT	1.78472	25.72	3.25	on stock	49
785258	ZF13	1.78472	25.76	4.87		43	785258	SF11	785-257	FD110	785257	PBH11
667331	H-ZF39	1.6668	33.05	2.92	low avaibility	51					667330	S-TlM39
741278	H-ZF50	1.74077	27.76	3.1	common	54			741-278	E-FD13	741278	S-TIH13
741278	ZF50	1.74077	27.76	4.46		64	741276	SF13	741-278	FD13	741278	PBH13
785261	ZF51	1.7847	26.08	4.99		64	785261	SF56A	785-261	FDS3	785262	PBH23
847238	H-ZF52	1.84666	23.78	3.51	on stock	50	847238	N-SF57	847-238	FDS90	847238	S-TIH53
847238	H-ZF52GT	1.84666	23.78	3.51	on stock	50	847238	N-SF57HT ultra	847-238	FDS90-SG	847238	S-TIH53W
847238	H-ZF52TT	1.84666	23.78	3.51	low avaibility	101
847238	H-ZF52A	1.84666	23.78	3.52	low avaibility	74	847238	N-SF57	847-238	FDS90	847238	S-TIH53
847238	ZF52	1.84666	23.83	5.49	low avaibility	57	847238	SF57	847238	FDS9	847239	PBH53
923209	H-ZF62	1.92286	20.88	4.01	on stock	163	923209	N-SF66	923209	E-FDS1
923209	H-ZF62GT	1.92286	20.88	4.01	common	212	923209	N-SF66	923-209	E-FDS1-w
808227	H-ZF71	1.8081	22.7	3.3	uncommon	258			808-228	FD225	808228	S-NPH1
808227	H-ZF71GT	1.8081	22.7	3.3	low avaibility	284			808-228	FD225	808228	S-NPH1W
923189	H-ZF72A	1.92286	18.9	3.57	on stock	166					923189	S-NPH2
923189	H-ZF72AGT	1.92286	18.9	3.57	common	200
959175	H-ZF73	1.95906	17.47	3.49	low avaibility	323					959175	S-NPH3
959175	H-ZF73GT	1.95906	17.47	3.49	low avaibility	375
946179	H-ZF88	1.94595	17.94	3.52	on stock	166			946-180	FDS18
946179	H-ZF88GT	1.94595	17.94	3.52	common	212			946-180	FDS 18-W
694492	H-LaF1	1.69362	49.19	3.85	low avaibility	61					-694508	(S-LAL58)
717479	H-LaF2	1.717	47.89	4.25	very common	40	717480	N-LAF3	717-480	LAF3	717479	S-LAM3
744449	H-LaF3B	1.744	44.9	4.39	on stock	33	744449	N-LAF2	744-449	LAF2	744448	S-LAM2
750350	H-LaF4	1.7495	34.99	3.92	very common	60	750348	N-LAF7	750-350	E-LAF7	750353	S-LAM7
750350	H-LaF4GT	1.7495	34.99	3.92	very common	65
754375	H-LaFL5	1.75367	37.49	3.71	low avaibility	92
757477	H-LaF6LA	1.757	47.71	4.06	low avaibility	87	757478	LAFN24	757477	NBF2	757478	S-LAM54
782371	H-LaF7	1.78179	37.09	3.77	low avaibility	89	782372	LAF22A
788475	H-LaF10LA	1.788	47.49	4.3	on stock	49	788475	N-LAF21	788-475	TAF4	788474	S-LAH64
773496	H-LaF50B	1.7725	49.6	4.24	on stock	39	773496	N-LAF34	773496	TAF1	773496	S LAH66
700481	H-LaF51	1.7	48.08	3.82	low avaibility	63					700481	S-LAM51
786442	H-LaF52	1.7859	44.19	4.39	very common	71	786441	N-LAF33	786-439	NBFD11	786442	S-LAH51
743492	H-LaF53	1.7433	49.22	4.16	very common	59	743494	N-LAF35	743-492	NBF1	743493	S-LAM60
800422	H-LaF54	1.79952	42.24	4.51	very common	78	800424	N-LAF36	800-423	NBFD12	800422	S-LAH52
762401	H-LaF55	1.762	40.11	4.3	low avaibility	79					762401	S-LAM55
720437	H-LaF62	1.72	43.68	3.89	low avaibility	62					720437	S-LAM52
802443	H-ZLaF1	1.80166	44.26	4.3	low avaibility	115	802443	LASF11	802-443	NBFD14
803468	H-ZLaF2A	1.80279	46.76	4.65	low avaibility	165	803468	LASF1			803467	LAH62
855366	H-ZLaF3	1.85544	36.59	4.5	low avaibility	167	855366	LASF13	855-366	TAFD13
911353	H-ZLaF4LA	1.91082	35.25	5.07	on stock	93			911-353	TAFD35
911353	H-ZLaF4LB	1.91082	35.28	4.84	low avaibility	75			911-353	TAFD35
804466	H-ZLaF50E	1.804	46.57	4.44	on stock	55	804465	N-LASF44	804-465	TAF3D	804466	S-LAH65VS
804466	H-ZLaF50D	1.804	46.58	4.52	low avaibility	124	804465	N-LASF44	804-465	TAF3	804466	S-LAH65VS
805396	H-ZLaF51	1.8045	39.64	4.41	uncommon	109			805-396	NBFD3	-804396	(S-LAH63)
806410	H-ZLaF52A	1.8061	41.02	4.48	low avaibility	65	806406	N-LASF43	806-407	NBFD13	806409	S-LAH53V
806410	H-ZLaF52	1.8061	40.95	4.45	low avaibility	86	806406	N-LASF43	806-407	NBFD13	806409	S-LAH53V
834372	H-ZLaF53B	1.834	37.21	4.54	on stock	58	834373	N-LASF40	834-373	NBFD10	834372	S-LAH60
834372	H-ZLaF53BGT	1.834	37.21	4.54	on stock	93
835427	H-ZLaF55D	1.83481	42.73	4.56	on stock	62	835431	N-LASF41	835-427	TAFD5G	835427	S-LAH55VS
835427	H-ZLaF55C	1.83481	42.71	4.73	low avaibility	62	835431	N-LASF41	835-427	TAFD5F	835427	S-LAH55VS
806333	H-ZLaF56B	1.8061	33.27	3.79	on stock	55			806-333	NBFD15
801350	H-ZLaF66	1.801	34.97	3.89	very common	59	801350	N-LASF45			801350	S-LAM66
801350	H-ZLaF66GT	1.801	34.97	3.89	very common	59	801350	N-LASF45HT
883409	H-ZLaF68C	1.883	40.85	5.34	very common	246	883408	N-LASF31A	883-408	TAFD30	883408	S-LAH58
883392	H-ZLaF68N	1.883	39.22	5.17	common	152
883408	H-ZLaF68B	1.883	40.79	5.53	low avaibility	362	883408	N-LASF31A	883-408	TAFD30	883408	S-LAH58
816465	H-ZLaF69	1.816	46.55	5.01	low avaibility	231			816-466	TAF5	816466	S LAH59
816466	H-ZLaF69A	1.816	46.56	5.06	common	194			816-466	TAF5	816466	S-LAH59
850323	H-ZLaF71	1.85026	32.3	4.22	very common	108					850323	S LAH71
850322	H-ZLaF71AGT	1.85026	32.22	4.42	low avaibility	108	850322	N-LASF9
881402	H-ZLaF73	1.881	40.16	5.2	uncommon	267			881401	TAFD33
904313	H-ZLaF75A	1.90366	31.32	4.56	on stock	65	904313	N-LASF46A	904-313	TAFD25	904313	S-LAH95
904314	H-ZLaF75B	1.90366	31.42	4.56	low avaibility	118	904313	N-LASF46B	904-313	TAFD25	904313	S-LAH95
850301	H-ZLaF76	1.85013	30.06	3.98	low avaibility	109					850300	S-NBH57
850300	H-ZLaF76A	1.85013	30.01	4.31	common	82					850300	S-NBH57
901371	H-ZLaF78B	1.90069	37.05	4.95	low avaibility	164			(900-374)	(TAFD37A)
954323	H-ZLaF89L	1.95375	32.31	5.1	common	132			954-323	TAFD45	954323	S-LAH98
1254	H-ZLaF90	2.00069	25.43	4.74	very common	90			001-255	TAFD40
3283	H-ZLaF92	2.0033	28.32	5.02	uncommon	116					3283	S-LAH79
613441	H-TF3L	1.6134	44.11	2.8	on stock	100	613445	N-KZFS4	613444	E-ADF10	613443	S-NBM51
612441	TF3	1.61242	44.09	3.25	low avaibility	180
654395	H-TF5	1.6541	39.54	3.01	low avaibility	132	654397	N-KZFS5	654-396	E-ADF50	654397	S-NBH5
497816	D-FK61	1.497	81.61	3.9	low avaibility	173			497-816	M-FCD1
497816	D-FK61A	1.497	81.61	3.68	on stock	140			497-816	M-FCD1
438945	D-FK95	1.4378	94.52	3.52	low avaibility	189
487704	D-QK3L	1.48749	70.44	2.43	very common	92	487704	N-FK5
516641	D-K9	1.51633	64.06	2.41	low avaibility	41	516641	P-BK7			516641	L-BSL7
516641	D-K9GT	1.51633	64.06	2.41	common	51
518635	D-K59	1.5176	63.5	2.41	low avaibility	41
525704	D-PK3	1.525	70.37	2.65	low avaibility	255
621638	D-ZPK1A	1.62087	63.83	3.69	common	182			(619-639)	(M-PCD4)
594673	D-ZPK3	1.59419	67.3	3.37	low avaibility	190			(592-670)	(M-PCD51)
593683	D-ZPK5	1.5928	68.34	4.29	low avaibility	150			593-686	FCD515
569713	D-ZPK7	1.56907	71.3	4.36	low avaibility	221
583594	D-ZK2	1.58313	59.38	2.96	very common	47			583-595	M-BACD12	583594	L-BAL42
587596	D-ZK2L	1.587	59.6	2.99	low avaibility	47
589612	D-ZK3	1.58913	61.15	2.83	very common	47	589612	P-SK58A	589-613	M-BACD5N	589612	L-BAL35
592607	D-ZK3L	1.5917	60.7	2.84	low avaibility	49
624582	D-ZK21	1.62446	58.21	2.99	low avaibility	51			(623-582)	(M-BACD15)
609579	D-ZK79	1.60886	57.9	3.19	low avaibility	87	610579	(P-SK60)
678549	D-LaK5	1.6779	54.89	3.37	low avaibility	91					678549	L-LAL12
694531	D-LaK6	1.69384	53.13	3.5	very common	69	694532	P-LAK35	694-532	M-LAC130	694532	L-LAL13
731539	D-LaK52	1.7305	53.94	4	low avaibility	106			729-540	M-TAC80
669554	D-LaK70	1.6691	55.39	3.35	low avaibility	115
689311	D-ZF10	1.68893	31.08	2.84	common	77	689313	P-SF8	689-312	M-FD80	689310	L-TIM28
2207	D-ZF93	2.0017	20.7	6.11	low avaibility	252			(002-193)	(M-FDS2)
774496	D-LaF50	1.774	49.59	4.93	on stock	156			(773-495)	(M-TAF1)
768493	D-LaF050	1.76842	49.28	4.51	very common	186			768-492	M-TAF101
743493	D-LaF53	1.7433	49.33	4.26	common	126			743-493	M-NBF1	743-493	I-LAM60
731405	D-LaF79	1.73077	40.51	3.21	low avaibility	171			731-405	M-LAF81	731405	L-LAM69
803455	D-ZLaF50	1.80337	45.49	4.89	common	254			(801-455)	(M-TAF31)
810410	D-ZLaF52LA	1.81	40.99	4.56	very common	104	810409	P-LASF51
822427	D-ZLaF61	1.82241	42.71	4.92	low avaibility	249			(821-427)	(M-TAFD51)
884372	D-ZLaF67	1.88385	37.2	5.5	common	325			(882-372)	(M-TAFD307)
809410	D-ZLaF81	1.8088	41	4.55	low avaibility	123	809405	P-LASF50	(808-409)	(MC-NBFD135)
852401	D-ZLaF85A	1.85222	40.11	5.22	very common	307			(851-401)	(M-TAFD305)	~854404	(L-LAH85V)
854406	D-ZLaF85L	1.8537	40.58	5.28	low avaibility	371			(851-401)	(M-TAFD305)	854404	L-LAH85V
855406	D-ZLaF85LS	1.8545	40.59	5.29	low avaibility	371			(851-401)	(M-TAFD305)	854404	L-LAH85V
846401	D-ZLaF85LN	1.84558	40.09	4.96	common	134			(851-401)	(M-TAFD305)	854404	L-LAH85V
487704	H-QK3LGTi						487705	FK5HTi			487703	S-FSL5Y
519633	H-K90GTi						517642	(N-BK7HTi)			~516643	(BSL7Y)
581409	QF50GTi						581409	LF5HTi			581408	PBL25Y
620364	F4GTi						620364	F2HT			620363	PBM2Y

What is the meaning of the glass type letters ?

Letters in the glass types correspond to specific information about the glass. For example prefix “H” (H-K9L) for CDGM is meant for environment friendly glass (no lead, no cadmium, no arsenic) and is equivalent to “N” prefix for Schott.

Prefix D for CDGM is used to show that a glass is easily moldable as having a low softening point.

How to read glass code and glass index

Glass codes are set according to international usage, it is made of 6 digits and can be divided in two 3 digits numbers : the three first digits being the rounded value after the decimal point of glass refractive index (nd) and the three last digits being the abbe number (Vd) rounded at the decimal value.

For example H-BaK2 code is 540597 coming from nd : 1.53996 (rounded to 540) and Vd : 59.72.

What is nd & Vd ?

The nd value stands for refractive index of a glass at 587.56 nm wavelength. While Vd is the value of glass’s Abbe number also at 587.56nm. Optical glass material suppliers provide different tolerance level for nd & Vd, the tightest being grade 1 (+/-30×10-5 for nd & +/-0.5% on Vd).

More information about optical glass