Type	Code	n_c	n_d	n_F	n_g	v_d	s.g.	Coloring
S-LAH52Q	800422	1.79389	1.79952	1.81282	1.82356	42.24	4.47	390/335

S-LAH52Q has positive dn/dT

S-LAH52Q is an optical glass with extremely large positive dn/dT. In Automotive camera lens systems, the focal length is often a fixed distance. Refractive index fluctuations within the optical system should certainly be a consideration, as cars are used in environments where the temperature range can vary widely from below zero in colder climates to more that 50°C inside a car on a summer day. Since many optical glasses have low dispersion and negative dn/dT values, the refractive indices fluctuations due to temperature change can be adjusted efficiently when these materials are combined with S-LAH52Q. In addition to Automotive camera lens systems, S-LAH52Q can also be used for Projectors, Interchangeable Photographic lenses, and various other applications.

Advantages

Extremely large positive dn/dT
Can be used for automotive camera lenses, projectors and photographic interchangeable lenses

Comparison

Type	Code	n_c	n_d	n_F	n_g	v_d	s.g.	Coloring
S-LAH52Q	800422	1.79389	1.79952	1.81282	1.82356	42.24	4.47	390/335
S-LAH52	800422	1.79388	1.79952	1.81281	1.82355	42.2	4.41	40/34

S-LAH52Q

Optical glass type S-LAH52Q: large positive dn/dT and used for automotive camera lenses, projectors, and more.

S-LAH52Q has positive dn/dT

Advantages

Comparison

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