OPTICAL GLASS OVERVIEW

Optical glass is mainly produced in a continuous melting process. Optical glasses acquire their properties through their chemical composition, melting process, and finishing methods.

There are two common optical glasses: flint glass and crown glass. The difference between the two lies in their index of refraction; however, both are known for their Abbe numbers generally under 60.

The table below shows comparable materials from different manufacturers.

Optical Glass Cross Reference Chart
SCHOTT OHARA HIKARI CDGM
Type Code Type Code Type Code Type Code
N-BK7 517642 S-BSL7 516641 J-BK7 517641 H-K9L 517642
- - S-TIM8 596392 J-F8 596392 H-QF14 596392
- - S-TIM5 603380 J-F5 603380 H-F1 603380
N-SK2 607567 S-BSM2 607568 J-SK2 J-SK2 H-ZK50 607567
N-F2 N-F2 S-TIM2 620363 J-F2 620364 H-F4 620364
N-SF2 648338 S-TIM22 648338 J-SF2 648337 H-ZF1 648338
N-SF5 673323 S-TIM25 673321 J-SF5 673322 H-ZF2 673322
N-SF8 689313 S-TIM28 688311 J-SF8 689312 H-ZF10 689312
N-SF1 717296 S-TIH1 717295 J-SF1 717296 H-ZF3 717295
N-SF10 728285 S-TIH10 728285 J-SF10 728284 H-ZF4 728283
N-SF4 755274 S-TIH4 755275 J-SF4 755276 H-ZF6 755275
N-SF11 785257 S-TIH11 785257 J-SF11 785256 H-ZF13 785257
N-SF6 805254 S-TIH6 805254 J-SF6 805255 H-ZF7LA 805255
N-SF57 847238 S-TIH53 847238 J-SF03 847238 H-ZF52A 847238
Material data sheets

AVAILABLE MATERIALS

Based upon customer demand, Sydor Optics offers Optical Glass made from the following substrate materials. Of course, if you don’t see a material you need, please contact a Sales Engineer, who will gladly discuss additional options that may be available.