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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 E-FD80 690-311 NBFD29 770-297
FCD10A 459-902 FD60-W 805-255 NBFD30 859-300
FCD100 437-951 FD225 808-228 NBFD32 730-322
FCD500 554-718 FD270 684-268 TAF1 773-496
FCD515 593-686 E-FDS1-W 923-209 TAF3D 804-465
FCD600 594-605 E-FDS2 003-193 TAFD5G 835-427
FCD705 550-755 E-FDS3 104-170 TAFD25 904-313
PCD4 618-634 FDS16-W 986-165 TAFD30 883-408
PCD40 620-639 FDS18-W 946-180 TAFD32 871-407
PCD51 593-670 FDS20-W 870-200 TAFD33 881-401
LAC8 713-539 FDS24-W 921-240 TAFD35 911-353
LAC14 697-555 FDS90-SG 847-238 TAFD37A 900-374
TAC6 755-523 FF8 752-251 TAFD40-W 001-255
TAC8 729-547 NBFD10 834-373 TAFD45 954-323
E-FD1L 717-295 NBFD13 806-407 TAFD55-W 001-291
E-FD4L 755-275 NBFD15-W 806-333 TAFD65 051-269
E-FD10L 728-283 NBFD25 855-252
E-FD15L 699-301 NBFD27 901-271

 

Common glass type

   Glass Type Code    Glass Type Code    Glass Type Code
FC5 487-704 E-FL6 567-428 FDS24 921-240
FCD1B 497-816 E-F2 620-363 FF5 593-354
BSC7 517-642 E-F5 603-380 BAFD7 702-412
E-C3 518-590 E-FD2 648-338 BAFD8 723-380
BAC4 569-560 E-FD5 673-322 LAF2 744-449
BACD5 589-613 E-FD8 689-312 LAF3 717-480
BACD16 620-603 E-FD13 741-278 NBF1 743-492
BACED5 658-509 FD60 805-255 NBFD11 786-439
E-CF6 517-522 FD110 785-257 NBFD15 806-333
E-FEL1 548-458 FD140 762-266 TAFD40 001-255
E-FEL2 541-472 E-FDS1 923-209 TAFD55 001-291
E-FL5 581-409 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. E-FEL6 532-488 Ref. E-ADF50 654-396
Ref. FCD505 593-686 Ref. E-F1 626-357 Ref. E-BACD10 623-569
Ref. LBC3N 606-637 Ref. E-F3 613-370 Ref. E-BACED20 649-530
Ref. BACD2 607-567 Ref. E-F8 596-392 Ref. E-BAF8 624-471
Ref. BACD4 613-586 Ref. E-FD1 717-295 Ref. E-LAF7 750-350
Ref. BACD11 564-608 Ref. E-FD4 755-275 Ref. NBFD3 805-396
Ref. BACD14 603-607 Ref. E-FD7 640-346 Ref. NBFD12 800-423
Ref. BACD15 623-581 Ref. E-FD10 728-283 Ref. TAF2 795-454
Ref. BACD18 639-555 Ref. E-FD15 699-301 Ref. TAF3 804-465
Ref. LAC7 652-584 Ref. FDS90 847-238 Ref. TAF4 788-475
Ref. LAC9 691-547 Ref. TAC2 741-526 Ref. TAF5 816-466
Ref. LAC10 720-503 Ref. TAC4 734-511 Ref. TAFD5F 835-427
Ref. LAC12 678-555 Ref. BAF10 670-472 Ref. TAFD37 900-374
Ref. LAC13 694-533 Ref. BAF11 667-483
Ref. LACL60 640-602 Ref. E-ADF10 613-444
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