Relative Partial Dispersions
N-PK52A(H-FK61)				SF10(ZF4)
Ps,t	0.2824	P's,t	0.2802	Ps,t	0.2170	P's,t	0.2135
PC,s	0.5417	P'C',s	0.5857	PC,s	0.4666	P'C',s	0.5036
Pd,C	0.3054	P'd,C'	0.2548	Pd,C	0.2890	P'd,C'	0.2401
Pe,d	0.2388	P'e,d	0.2369	Pe,d	0.2361	P'e,d	0.2323
Pg,F	0.5379	P'g,F'	0.4777	Pg,F	0.6038	P'g,F'	0.5341
Pi,h	0.7479	P'i,h	0.7421

Abnormal  Dispersions
N-PK52A(H-FK61)				SF10(ZF4)
△PC,t	-0.1067	△PC,s	-0.0530	△PC,t	0.0040	△PC,s	-0.0020
△PF,e	0.0106	△Pg,F	0.0312	△PF,e	0.0008	△Pg,F	0.0064

What is the application of Achromatic Lenses?
1. Projectors: in projection display technology, achromatic lenses are used in the optical system of projectors. These lenses ensure colour accuracy and clarity of the projected image, enhancing the visual experience of the viewer.
2. Spectral analysis: achromatic lenses are used in spectral analysis instruments in scientific research and industrial testing. These lenses ensure spectral accuracy and resolution and help researchers to analyse the composition and properties of substances.
3. Medical imaging: in medical imaging equipment, such as endoscopes and ophthalmic examination equipment, achromatic lenses are used to capture high-definition images of the inside of the human body. These lenses provide clear and no chromatic aberration images to help doctors with diagnosis and treatment.

What materials are Yutai Optics' achromatic lenses?
Yutai Optics recommends the most popular five pairs of materials:
1. N-BK7 / N-SF5
2. N-BAF10 / N-SF10
3. N-LAK22 / N-SF6
4. N-BAF10 / N-SF57
5. N-SSK8 / N-SF10

Highly Recommended Optical Lenses from Yutai Optics:
Optical Spherical Singlet Lenses
Double Concave (DCV) Lenses
N-SF11 Cylindrical Lens
BK7 Lenses