BK7 B270 optical glasses

optical glass 1.material: BK7/B270 optical glasses / colored optical glass. 2.ensure product quality.

BK7/B270 optical glasses 

 

   Color optical glass of Ruisen Optics has hundreds of different curve. Supply optical filter from 200nm to 2500nm. Optical glass has color optical glass and colorless optical glass. Color optical glass has phosphate glass and silicate glass. Apply Se and Cd color and selective absorption glass of ion color neutral(Dark) glass. They are widely used in university and institute, research development and military, policy, medical instrument and finance etc.

    cut-off type: block the short wavelength by ab sorption and transmit the long wavelengthselective absorption type:transmission (or absorption) one wavelength (or several wavelengths)neutral density type:similar absorption for the whole visible wavelength range

    The optical glass is the glass material used in the lens, prism, reflector and windows of optical instruments and optical equipments. The various kinds of optical glass are as the follows: Uncolored optical glass, colored optical glass, laser glass, radiation resistance laser glass, radiation protection laser glass and quartz glass. The uncolored optical glass is commonly regarded as the optical glass, which is one of the general specifications in glasses. There are over 200 kinds of number features in total. Each feature has its own optical constants, uniformity, transparency and chemical durability.

Cylindrical lens

1.Material:BK7or other

2.Surface quality :80/50~10/5

3.Tolerance :0.2-0.02mm

4.Coating :AR or other

 

Cylindrical lens

    Focuses light in only one dimension. Similar to a PCX lens in profile, but is a portion of a cylinder instead of a sphere. Cylinder lenses can transform a point of light into a line image. This is useful for making laser line generators. The lense magnifies in one dimension so it can be used for stretching images. Can be used for focusing light into a slit or converging light for a line scan detector.

PCV oblong cylindrical lens can be used together with PCX oblong cylinder lenses for beam expander applications.

The thin lens approximation for the length of a line generated by a negative cylinder lens is:L = 2 * (r0/f) * (z + f)

where L is the line length, r0 is half the beam diameter, z is the projection distance, and f is the focal length of the lens.

Lens Type:Cylindrical lens  

Material:BK7 or other as your requirement  

L/H Tolerance:+/-0.2mm  

Centration:<3' or as your requirement  

Center Thickness Tolerance:+/-0.1mm  

Surface figure:X=λ/4,Y=λ/2  

Surface Quality:60-40.40-20  

EFL Tolerance:+/-3%  

Coating:As your requirement

Trust can supply custom cylindrical lens to your design and to suit your specific applications.

Please email your specification or drawing and we will be happy to return a quotation ASAP. Our average response time is within 24 hours.

Our Products are fully customisable, your further requests are welcome!

BK7 B270 optical glasses