Optical glass materials and direct pressing product are fabricated in Akishima factory Tokyo, Japan and supplied to the pressed lens blanks factory(HOPT-RP) in the Kingdom of Thailand as strip bar(Extruded bar).HOPT-RP supply reheat-pressing blanks or rolled and sliced blanks to the polishing factory nearby.

Direct Pressed Blanks (DP)

Direct pressed Blanks are formed by a fully automatic direct casting and process. HOYA's DP product is better. superior to its RP product in dimensional accuracy in outside diameter, thickness, etc.

Re-heat Pressed Blanks (RP)

Re-heat pressed Blanks are formed by a manual press method using a glass cutting and glass softening process.

Rolled and Sliced Blanks (RS)

Rolled and Sliced Blanks are formed that has been precisely rounded off and sliced. HOYA's RS product is superior to pressed blanks in dimensional accuracy.

New Glass Types

Four Newly Developed Optical Glass Types have been added.

» The details are here.

Recommended Two Series Line Up

We recommend 2 Series ,20 glass types as High Functional Materials for the Customer needs.

» The details are here.

New Standards & Premium Standards

A new standard is set about the refractive property and light transmission characteristics in response to the customer's design needs. Also we present the premium standard to our valued customers.

The premium standard can be selected according to the item. We will propose you to adopt the premium standard according to your design need and specification to achieve the higher performance.

» The details are here.

Quality of Products

•Internal Quality of Products

1 … Tolerance of Refractive Index and Abbe-number
2 … Coloration Code
3 … Thermal Properties
4 … Optical Homogeneity
5 … Stress Birefringence
6 … Striae
7 … Bubbles and Inclusion

•Product Specifications

1 … Diameter and Thickness
2 … Radius Curvature (R)
3 … Inside Diameter
4 … Chamfering

List of Glass Types (Glass Lenses Pressed Blanks)

Click glass type to download the PDF catalog data

H Series

Glass Type	Code	Glass Type	Code	Glass Type	Code
FCD1	497-816	FDS90	847-238	TAFD5F	835-427
FCD100	437-951	E-FDS1	923-209	TAFD25	904-313
FCD505	593-686	E-FDS2	003-193	TAFD30	883-408
		FDS18	946-180	TAFD33	881-401
				TAFD35	911-353
				TAFD40	001-255
				TAFD55	001-291

 

S Series

Glass Type	Code	Glass Type	Code	Glass Type	Code
PCD4	618-634	LAC14	697-555	FD60	805-255
PCD51	593-670	TAC8	729-547	NBFD10	834-373
				NBFD15	806-333
				TAF1	773-496
				TAF3	804-465

 

Common glass type

Glass Type	Code	Glass Type	Code	Glass Type	Code
FC5	487-704	E-CF6	517-522	E-FD8	689-312
LBC3N	606-637	E-FEL1	548-458	E-FD10	728-283
BSC7	517-642	E-FEL2	541-472	E-FD13	741-278
E-C3	518-590	E-FEL6	532-488	E-FD15	699-301
BAC4	569-560	E-FL5	581-409	FD110	785-257
BACD5	589-613	E-FL6	567-428	FD140	762-266
BACD11	564-608	E-F1	626-357	FF5	593-354
BACD14	603-607	E-F2	620-363	FF8	752-251
BACD16	620-603	E-F3	613-370	BAFD7	702-412
BACD18	639-555	E-F5	603-380	BAFD8	723-380
BACED5	658-509	E-F8	596-392	LAF2	744-449
LAC8	713-539	E-FD1	717-295	E-LAF7	750-350
		E-FD2	648-338	NBF1	743-492
		E-FD4	755-275	NBFD3	805-396
		E-FD5	673-322	NBFD11	786-439
		E-FD7	640-346	NBFD13	806-407

 

Ref / Ref glass type will be dropped in production.Please contact for any inquiry.

Glass Type	Code	Glass Type	Code	Glass Type	Code
BACD2	607-567	E-BAF8	624-471	LAF3	717-480
BACD4	613-586	FCD10A	459-902	NBFD12	800-423
BACD15	623-581	FCD10	457-903	TAC2	741-526
BAF10	670-472	LAC7	652-584	TAC4	734-511
BAF11	667-483	LAC9	691-547	TAC6	755-523
E-ADF10	613-444	LAC10	720-503	TAF2	795-454
E-ADF50	654-396	LAC12	678-555	TAF4	788-475
E-BACD10	623-569	LAC13	694-533	TAF5	816-466
E-BACED20	649-530	LACL60	640-602