Optical Glass Cross-Reference Guide

Overview

This guide explains how to use optical glass cross-reference data when reviewing material options for precision optical components. It is written for engineers, OEM buyers, and sourcing teams who need to compare CDGM, Schott, Ohara, and Hoya glass codes before ordering lenses, prisms, windows, or other optical parts.

The table is a starting point for engineering review. It should not be treated as proof that two materials are identical, formally approved substitutes, or ready for production without validation.

How to Use This Cross-Reference

Cross-reference data is useful when a drawing lists one glass family but procurement or engineering needs to evaluate comparable glass from another catalog. Start by comparing refractive index, Abbe number, manufacturer glass code, and the source status marker. Then confirm the actual drawing, wavelength range, coating target, tolerance, environmental requirement, and inspection documentation.

For infrared systems, this glass guide should be used alongside IR optical materials and IR optical component selection. OPTOstokes-IROptical focuses on infrared optical components, CVD ZnSe optics, and drawing-based custom parts; glass cross-reference content is provided as an engineering resource to support early material review.

Key Data Fields

• Refractive index nd @ 588 nm: A primary optical design value used to compare bending power and glass family behavior.
• Abbe number vd: A dispersion indicator. Lower vd usually means stronger dispersion and higher chromatic sensitivity.
• CDGM, Schott, Ohara, and Hoya codes: Manufacturer naming systems that may point to comparable glass families.
• Source status marker: S, P, and X are source markers only. They are not inventory, delivery, certification, or availability promises.

Representative Cross-Reference Candidates

CDGM	Schott	Ohara	Hoya	nd	vd
H-ZF52	SF57HTULTRA	S-TIH53W	FDS90	1.84666598	23.787324
H-ZF7LA	SF6	S-TIH6	FD60	1.80518932	25.47729
H-ZF13	SF11	S-TIH11	FD110	1.78472134	25.719658
H-ZF6	SF4	S-TIH4	FD4	1.75520518	27.547441
H-ZF4A	SF10	S-TIH10	FD10	1.72825449	28.310916
H-ZF3	SF1	S-TIH1	FD1	1.71736082	29.509994
H-ZF10	P-SF8	S-TIM28	MP-FD80	1.68892979	31.160527
H-ZLAF75B	N-LASF46B	S-LAH95	TAFD25	1.90366311	31.419748
H-ZF2	SF5	S-TIM25	FD5	1.67270157	32.17888
H-F4	N-F2	S-TIM2	E-F2	1.62004738	36.34792

Engineering Review Notes

A comparable glass code is not enough to release production. Before substitution, confirm spectral transmission, thermal expansion, chemical durability, bubble and striae grade, blank availability, coating compatibility, and fabrication tolerance. For prism and lens work, also review wedge, centering, surface quality, surface figure, and inspection method.

If your project involves infrared optics rather than visible glass alone, compare the design with ZnSe material, ZnSe prism options, and other IR materials before finalizing the component route.

Request an Equivalent Material Review

To request a practical review, send the target glass code, drawing, wavelength range, dimensions, tolerance, coating target, quantity, and application environment through the contact page. We can help review whether the request should stay with optical glass, move toward an IR material, or be evaluated as a custom optical component.