Optical Glass Types

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Optical Glass Types

Optical glass can be classified into 17 groups according to its different refractive index (nd) and dispersion coefficient (Vd) positions in the nd - Vd diagram and their chemical composition (Table 1).

Details

Designation of Optical Glass Types

Each optical glass type within a group is designated by an abbreviated group symbol and a number. In addition to the glass type designation, a six-digit code is listed in this catalogue. The first three digits indicate the three numbers after the decimal point of the glass refractive index and the last three digits indicate the Abbe-number. For example H-K9L, n_d=1.51680, v_d=64.2, its code comes to be 517642.

Designation of the Optical Glass without Lead, Arsenic and Cadmium

The optical glass without Lead, Arsenic, Cadmium and other radioactive elements is expressed by a prefix 'H-' indicating its eco-friendly characteristics, for example: H-K9L.

Designation of Low Softening Point Glass Types

Low softening point glass type without Lead, Arsenic, Cadmium and other radioactive elements is prefixed by an alphabet 'D-', for example: D-K9L.

Designation of UV High Transmittance Glass Types

The type of UV high transmittance is prefixed by an alphabet 'U' as usual, which means ultraviolet, for example UQF50. High transmittance glass type is expressed by a suffix '-HT' meaning high transmittance, for example ZF7LHT.

Classification & Designation of Optical Glass Types

*Click on the TYPE in CDGM catalog for more information of the material.*

FK	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-FK61	1.497	81.61	0.00609	497-816	FCD1	497816	N-PK52A	497816	S-FPL51
	H-FK61B	1.497	81.61	0.00609	497-816	FCD1B	497816	N-PK52A	497816	S-FPL51
	H-FK71	1.4565	90.27	0.005057	457-903	FCD10
	H-FK95N	1.4378	94.52	0.004632	(437-951)	(FCD100)			(439950)	(S-FPL53)

QK	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-QK1	1.47047	66.88	0.007035
	H-QK3L	1.48749	70.44	0.006921	487-704	FC5	487704	N-FK5	487702	S-FSL5	487 700	ЛК3
	H-QK3LGTi	1.48749	70.44	0.006921			487705	FK5HTi	487703	S-FSL5Y

K	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-K1	1.49967	62.07	0.00805
	H-K2	1.50047	66.02	0.00758	500-660	BSC4	500658	BK4	500660	BSL4
	H-K3	1.50463	64.72	0.007797			505650	BK5
	K4A	1.50802	61.05	0.008321
	H-K5	1.51007	63.36	0.00805	510-634	BSC1	510635	BK1	510636	BSL1
	H-K6	1.51112	60.46	0.008454	511605	C7	511604	K7	511605	NSL7
	H-K7	1.51478	60.63	0.00849
	H-K8	1.51602	56.79	0.009086
	H-K9L	1.5168	64.2	0.00805	517-642	BSC7	517-642	BSC7	517642	N-BK7
	H-K9LGT	1.5168	64.2	0.00805			517642	N-BK7HT
	H-K9L*	1.5168	64.2	0.00805
	H-K9LA	1.5168	64.2	0.00805	517-642	BSC7	517642	N-BK7	516641	S-BSL7
	H-K9LAGT	1.5168	64.2	0.00805			517642	N-BK7HT

ZPK	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-ZPK1A	1.618	63.39	0.009748	618-634	PCD4	618634	N-PSK53A	618634	S-PHM52
	H-ZPK2A	1.603	65.47	0.00921					603655	S-PHM53
	H-ZPK3	1.59349	67.29	0.00882	593-670	PCD51
	H-ZPK5	1.5928	68.34	0.008674	593-686	FCD515
	H-ZPK7	1.56907	71.3	0.007981

BaK	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-BaK1	1.53028	60.47	0.00877
	H-BaK2	1.53996	59.72	0.009041	540-597	BAC2	540597	N-BAK2	540595	S-BAL12	540 448	ЛФ12
	H-BaK3	1.54678	62.78	0.00871					548628	BAL21
	H-BaK4	1.55248	63.37	0.008719	552-634	PCD3	552635	N-PSK3	552638	BAL23
	H-BaK5	1.56069	58.34	0.00961
	H-BaK6	1.56388	60.76	0.00928	564-608	BACD11	564608	N-SK11	564607	S-BAL41
	H-BaK7	1.56883	56.04	0.01015	569-560	BAC4	569560	N-BAK4	569563	S-BAL14	569 494	БФ6
	H-BaK7GT	1.56883	56.04	0.01015			569560	N-BAK4HT

ZK	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-ZK1	1.56888	62.96	0.009036	569-631	PCD2	569631	PSK2	569631	BAL22
	H-ZK2	1.58313	59.46	0.009807	583-595	BACD12	583595	SK12	583594	S-BAL42
	H-ZK3	1.58913	61.25	0.009618	589-613	BACD5	589613	N-SK5	589612	S-BAL35	589 612	ТК23
	H-ZK3A	1.58913	61.25	0.009618	589-613	BACD5	589613	N-SK5	589612	S-BAL35	589 612	ТК23
	H-ZK4	1.60881	58.86	0.010344	609-589	BACD3	609589	SK3	609590	BSM3
	H-ZK5	1.61117	55.77	0.010958	611-558	BACD8	611559	SK8	611559	BSM8
	H-ZK6	1.61272	58.58	0.01046	613-586	BACD4	613586	N-SK4	613587	S-BSM4
	H-ZK7	1.61309	60.58	0.01012

LaK	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-LaK1	1.6595	57.35	0.0115	660-573	LAC11	660573	LAK11
	H-LaK2A	1.69211	54.54	0.01269
	H-LaK3	1.74693	50.95	0.01466
	H-LaK4L	1.64	60.2	0.010631	640-602	LACL60	640601	N-LAK21	640601	S-BSM81	639 482	БФ13
	H-LaK5A	1.6779	55.52	0.012211	678-555	LAC12	678552	N-LAK12	678553	S-LAL12
	H-LaK6A	1.6935	53.38	0.012992	694-533	LAC13	694533	N-LAK13	694532	S-LAL13	692 550	СТК12
	H-LaK7A	1.713	53.83	0.013245	713-539	LAC8	713538	N-LAK8	713539	S-LAL8
	H-LaK8A	1.72	50.34	0.014302	720-503	LAC10	720506	N-LAK10	720502	S-LAL10

KF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-KF6	1.51742	52.15	0.009922	517-522	E-CF6			517524	S-NSL36	517 511	КФ7

QF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-QF1	1.54814	45.82	0.011963	548-458	E-FEL1	548 458	N-LLF1	548458	S-TIL1	548 458	ЛФ10
	QF1	1.54811	45.87	0.01195
	H-QF3	1.57501	41.5	0.013854					575415	S-TIL27	575 413	ЛФ5
	QF3	1.57502	41.31	0.01392
	QF5	1.58215	42.03	0.013852	582-420	FL3	582421	LF3	582421	PBL23
	H-QF6A	1.53172	48.84	0.010887	532-488	E-FEL6	532489	N-LLF6	532489	S-TIL6
	QF6	1.53172	48.76	0.010905
	H-QF8	1.54072	47.23	0.011449	541-472	E-FEL2			541472	S-TIL2

F	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-F1	1.60342	38.01	0.015875	603-380	E-F5	603380	N-F5	603380	S-TIM5	603 379	Ф6
	F1	1.60342	38.01	0.015873	603-380	F5	603380	F5	603380	PBM5
	H-F2	1.61293	37	0.016564	613-370	E-F3			613370	S-TIM3	613 345	Ф9
	F2	1.61293	36.96	0.016582	613-370	F3	613370	F3	613370	PBM3
	F3	1.61659	36.61	0.01684	617-366	F4	617366	F4	617366	PBM4
	H-F4	1.62005	36.35	0.01706	620-363	E-F2	620364	N-F2	620363	S-TIM2	620 363	Ф13
	F4	1.62005	36.35	0.01706	620-363	F2	620364	F2	620363	PBM2
	F5	1.62435	35.92	0.01738					621359	PBM11

BaF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-BaF2	1.5697	49.45	0.01152
	H-BaF3	1.57957	53.71	0.01079			580539	N-BALF4			580 380	ЛФ9
	H-BaF4	1.58267	46.6	0.012504
	BaF4	1.58271	46.47	0.01254
	H-BaF5	1.60562	43.88	0.013803			606437	N-BAF4	606437	S-BAM4	606 439	БФ27
	H-BaF6	1.60801	46.2	0.01316			(609466)	(N-BAF52)
	H-BaF7	1.61413	39.99	0.015359
	BaF7	1.61413	40.03	0.01534

ZBaF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-ZBaF1	1.6223	53.17	0.011704			622533	N-SSK2	622532	S-BSM22	622 567	ТК20/БФ11
	ZBaF2	1.63962	48.27	0.01325
	H-ZBaF3	1.65691	51.12	0.01285
	H-ZBaF4	1.66426	35.48	0.01872			664360	N-BASF2			664 354	БФ28
	H-ZBaF5	1.67103	47.29	0.01419
	H-ZBaF16	1.66672	48.42	0.013769	667-483	BAF11	667484	BAFN11	667483	S-BAH11
	ZBaF17	1.66755	41.93	0.015921	668-419	BAFD6	668419	BASF6	668419	BAH26
	H-ZBaF20	1.70154	41.15	0.017049	702-412	BAFD7	702410	N-BASF52	702412	S-BAH27

ZF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-ZF1	1.64769	33.84	0.01914	648-338	E-FD2	648338	N-SF2	648338	S-TIM22
	H-ZF1A	1.64769	33.89	0.019113	648-338	E-FD2	648338	N-SF2	648338	S-TIM22
	ZF1	1.64769	33.84	0.019142	648-338	FD2	648339	SF2	648338	PBM22
	H-ZF2	1.6727	32.17	0.02091	673-322	E-FD5	673323	N-SF5	673321	S-TIM25
	ZF2	1.6727	32.17	0.020909	673-322	FD5	673322	SF5	673321	PBM25
	H-ZF3	1.71736	29.5	0.024318	717-295	E-FD1	717296	N-SF1	717295	S-TIH1
	ZF3	1.71736	29.5	0.024317	717-295	FD1	717295	SF1	717295	PBH1
	H-ZF4A	1.72825	28.32	0.025716	728-283	E-FD10	728285	N-SF10	728285	S-TIH10

LaF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-LaF1	1.69362	49.19	0.0141					(694508)	(S-LAL58)
	H-LaF2	1.717	47.89	0.014972	717-480	LAF3	717480	N-LAF3	717479	S-LAM3
	H-LaF3B	1.744	44.9	0.01657	744-449	LAF2	744449	N-LAF2	744448	S-LAM2	744 504	СТК19
	H-LaF4	1.7495	34.99	0.021421	750-350	E-LAF7	750348	N-LAF7	750353	S-LAM7
	H-LaF4GT	1.7495	34.99	0.021421
	H-LaFL5	1.75367	37.49	0.020102
	H-LaF6LA	1.757	47.71	0.015866	757-477	NBF2	757478	LAFN24	757478	S-LAM54
	H-LaF7	1.78179	37.09	0.021077			782372	LAF22A

ZLaF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-ZLaF1	1.80166	44.26	0.018111	802-443	NBFD14	802443	LASF11
	H-ZLaF2A	1.80279	46.76	0.017168			803468	LASF1	803467	LAH62
	H-ZLaF3	1.85544	36.59	0.023381	855-366	TAFD13	855366	LASF13
	H-ZLaF4LA	1.91082	35.25	0.025839	911-353	TAFD35
	H-ZLaF4LB	1.91082	35.28	0.025815	911-353	TAFD35
	H-ZLaF50E	1.804	46.57	0.017263	804-465	TAF3D	804465	N-LASF44	804466	S-LAH65VS
	H-ZLaF50D	1.804	46.58	0.017262	804-465	TAF3	804465	N-LASF44	804466	S-LAH65VS
	H-ZLaF51	1.8045	39.64	0.020298	805-396	NBFD3			(804396)	(S-LAH63)

TF	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	H-TF3L	1.6134	44.11	0.013907	613-444	E-ADF10	613445	N-KZFS4	613443	S-NBM51
	TF3	1.61242	44.09	0.01389
	H-TF5	1.6541	39.54	0.016543	654-396	E-ADF50	654397	N-KZFS5	654397	S-NBH5
	H-TF8	1.72046	34.76	0.020728			720347	N-KZFS8	720347	S-NBH8

D	CDGM				HOYA		SCHOTT		OHARA		ГОСТ
	TYPE	nd	Vd	nF-nC	CODE	TYPE	CODE	TYPE	CODE	TYPE	Код (d)	Тип
	D-FK61	1.497	81.61	0.00609	497-816	M-FCD1
	D-FK61A	1.497	81.61	0.00609	497-816	M-FCD1
	D-FK95	1.4378	94.52	0.004632
	D-QK3L	1.48749	70.44	0.006921			487704	N-FK5			487 700	ЛК3
	D-K9	1.51633	64.06	0.00806			516641	P-BK7	516641	L-BSL7
	D-K9GT	1.51633	64.06	0.00806
	D-K59	1.5176	63.5	0.00815
	D-PK3	1.525	70.37	0.00746