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Glass Lenses Pressed BlanksList of Glass Types

Glass Lenses Pressed Blanksガラスモールドレンズ用プリフォーム

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.

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)

Recommended glass type

   Glass Type Code    Glass Type Code    Glass Type Code
FCD1 497-816 FD225 808-228 TAF3D 804-465
FCD10A 459-902 E-FDS1-W 923-209 TAFD5G 835-427
FCD100 437-951 E-FDS2 003-193 TAFD25 904-313
FCD515 593-686 FDS16-W 986-165 TAFD30 883-408
FCD600 594-605 FDS18-W 946-180 TAFD32 871-407
FCD705 550-755 FDS20-W 870-200 TAFD33 881-401
PCD4 618-634 FDS24 921-240 TAFD35 911-353
PCD40 620-639 FDS90-SG 847-238 TAFD37A 900-374
PCD51 593-670 NBFD10 834-373 TAFD40 001-255
LAC8 713-539 NBFD13 806-407 TAFD45 954-323
LAC14 697-555 NBFD15-W 806-333 TAFD55 001-291
TAC8 729-547 NBFD30 859-300 TAFD65 051-269
FD60-W 805-255 TAF1 773-496

 

Common glass type

   Glass Type Code    Glass Type Code    Glass Type Code
FC5 487-704 E-F2 620-363 FDS90 847-238
FCD1B 497-816 E-F5 603-380 FF5 593-354
BSC7 517-642 E-FD1 717-295 FF8 752-251
E-C3 518-590 E-FD2 648-338 BAFD7 702-412
BAC4 569-560 E-FD4 755-275 BAFD8 723-380
BACD5 589-613 E-FD5 673-322 LAF2 744-449
BACD14 603-607 E-FD8 689-312 LAF3 717-480
BACD15 623-581 E-FD10 728-283 NBF1 743-492
BACD16 620-603 E-FD13 741-278 NBFD3 805-396
BACD18 639-555 E-FD15 699-301 NBFD11 786-439
BACED5 658-509 FD60 805-255 NBFD15 806-333
E-CF6 517-522 FD110 785-257 TAF3 804-465
E-FEL1 548-458 FD140 762-266 TAFD5F 835-427
E-FEL2 541-472 E-FDS1 923-209 TAFD37 900-374
E-FL5 581-409 E-FDS3 104-170
E-FL6 567-428 FDS18 946-180

 

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

   Glass Type Code    Glass Type Code    Glass Type Code
Ref. FCD10 457-903 Ref. LACL60 640-602 Ref. E-ADF10 613-444
Ref. FCD505 593-686 Ref. E-FEL6 532-488 Ref. E-ADF50 654-396
Ref. LBC3N 606-637 Ref. E-F1 626-357 Ref. E-BACD10 623-569
Ref. BACD2 607-567 Ref. E-F3 613-370 Ref. E-BACED20 649-530
Ref. BACD4 613-586 Ref. E-F8 596-392 Ref. E-BAF8 624-471
Ref. BACD11 564-608 Ref. E-FD7 640-346 Ref. E-LAF7 750-350
Ref. LAC7 652-584 Ref. TAC2 741-526 Ref. NBFD12 800-423
Ref. LAC9 691-547 Ref. TAC4 734-511 Ref. TAF2 795-454
Ref. LAC10 720-503 Ref. TAC6 755-523 Ref. TAF4 788-475
Ref. LAC12 678-555 Ref. BAF10 670-472 Ref. TAF5 816-466
Ref. LAC13 694-533 Ref. BAF11 667-483
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