Double Concave Lens

Double Concave Lens

Double Concave, in similar cased, still known as bi-concave lens. The same optical property with the plano-concave lens. PHYO OPTICS supply double concave lens by N-BK7,Fused Silica,CaF2,SF11,H-BaK4,H-BaK7,etc, used as 190-2100nm based on different optical material and coating...
Double Convex Lens

Double Convex Lens

Double Convex lens, also as bi-convex lens. It is the similar function with the plano convex lens, they are all positive lens used for focus beam. The used wavelength range as 190-2100nm. Material can be N-BK7,Fused Silica,CaF2,SF11,H-BaK4,H-BaK7,etc, other special request...
Reticle Scales Patterns

Reticle Scales Patterns

A reticle, also known as a graticule, scales, patterns, used in eyepiece of a sighting device, such as telescope, microscope, or oscilloscope, etc. They are engraved lines in the eyepieces, with chrome coating. The engraved signes including: cross, dots, lines, circles, scales...
Optical Flats

Optical Flats

Optical flat: High accurate of the surface for single or both sides. Processed by the optical grade glass,used as a stardard for interferometer, to create the interference fringes by comparasion. Ideally used in laboratory interferometers or quality checking as the stardard. M...
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