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BK7 Double-Concave Lenses
Double concave lens(DCV) is similar with plano concave lens. The focus length is negative. It can make parallel light diverge outside. The two sides have same radius of curvature. Double convex lens generally used for expanding beam of light and projection etc. BK7 double concave lens has excellent transmittance from visible to near infrared wavelength (350-2000nm).
BK7 Double-Convex Lenses
BK7 double-convex lenses(DCX) has excellent transmittance during 350nm-2000nm and usually used in finite imaging application. We usually adopt BK7 glass when it’s not necessary to use the advantage of UV grade fused silica.
BK7 Dove Prism
Dove prism is right prism removing right angle. It can get 180°reversing image through the prism. The image rotating angle is twice of prism taking the optical axis as the rotation axis. The dove prism is realizing the internal total reflection based on critical angle principle, so the angle of view is limited. In addition, keep the reflection surface clean and using parallel light is very important.
BK7 Plano-Concave Lenses
BK7 Plano concave lens(PCV) is mainly used in diverging parallel light. BK7 material has high transmittance from visible light to near infrared(350-2000nm). When don’t need the feature of uv silica material, often use this type in laser and telescope application.
BK7 Plano-Convex Lenses
Plano convex lens(PCX) is mainly used in focusing parallel light or transfer spot light to parallel light. BK7 Plano convex lens has high transmittance from visible light to near infrared(350-2000nm).
BK7 Right Angle Prisms
Right angle prism is used to turn the optical path 90 degrees. According to the different azimuth of the prism, the imaging can be divided into the situation that the left and right are consistent and top bottom upside down, or the left and right are different, but the top and bottom are consistent.
BK7 Windows
Optical window is two mutually parallel surfaces of the optical glass after grinding and polishing. They are usually used as electronic sensors, optical lens, laser processing head protection device. In selecting the window, the transmission characteristics and mechanical properties of the material should be considered in line with your application.
Coated or uncoated windows could be provided. The size can be designed according to customer’s requirements.
Filters
Band-pass filter is a kind of optic that can allow specific wavelength light pass and others reflect or cut off. It has many kinds of application like clinical medicine, environmental experiment, fluorescence etc. Besides, arc lamp or gas discharge lamp light can also be selected via band-pass filters. They’re also often used together with laser diode module and LED. Our clients can choose different types according to their demands.