SIGMAKOKI

Register


PDBS
Reflectance : Transmittance
Diameter φD
Transmission
(Wevelength Range 555nm ,
Angle of Incidence : 0°)
Zoom

The polka dot beamsplitter is a beamsplitter that has aluminum coating of halftone dots (polka dots) on the glass substrate. It has a low dependence on the incident angle and can be used in a wide range of wavelengths from ultraviolet region to the infrared region.

◦Reflectance to transmittance ratio is manufactured by adjusting the area ratio of the points that have been coated.
◦Unlike dielectric beamsplitters, the polka dot beamsplitter reflectance and transmittance ratio does not change as the incident angle changes.
◦There are two sizes available φ25.4mm and φ50.8mm diameter and three types of reflectance to transmittance ratio, 7:3, 5:5 and 3:7.

Related product
Products
Technical Data
Documents/Downloads
Guide

▶We also offer different sizes, wavelengths and ratios that are not listed on our website or in our catalog.
W3802
▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format).

Attention

▶When used with a laser beam with high interference, diffraction occurs.
▶When light is incident, scattering light by the halftone dot occurs.
▶By the effect of the refractive index and the thickness of the substrate, the optical path of the transmitted light over the incident light will move by 0.5 extent parallel.
▶When the incident beam diameter is very thin, it is not possible to separate into the split ratio.
▶Do not clean with water or solvents. It may cause surface deterioration.
▶Please use in the environments which are non-condensing and less dust. If the dust or dirt is deposited, please do not blow but blow it off gently with dried air.

Common Specifications
MaterialSynthetic fused silica
Parallelism<3′
CoatingFront Surface: Al+MgF2
Rear Surface: Uncoated
Recommended angle of incidence0 − 45°
Wavelength range250 − 2200nm
Surface Quality (Scratch-Dig)80-50
Dot pitch0.3mm
Clear apertureCircle except surrounding 1.5mm
Outline Drawing

Zoom
Schematic

Zoom
Typical Transmittance Data

Zoom
T: Transmission
Surface enlargement

Zoom
Spec
Compare
Part Number
Add to cart Cart
    JP Yen Stock Qty
PDBS70-25.4C1.5
PDBS70-50.8C1.5
PDBSH-25.4C1.5
PDBSH-50.8C1.5
PDBS30-25.4C1.5
PDBS30-50.8C1.5

70:30

φ25.4mm

1.5mm

30%(+0/-5%)

70:30

φ50.8mm

1.5mm

30%(+0/-5%)

50:50

φ25.4mm

1.5mm

50%(+0/-5%)

50:50

φ50.8mm

1.5mm

50%(+0/-5%)

30:70

φ25.4mm

1.5mm

70%(+0/-5)

30:70

φ50.8mm

1.5mm

70%(+0/-5)

RoHS  

¥17,000

CONTACT
US
RoHS  

¥52,000

CONTACT
US
RoHS  

¥17,000

LOW
RoHS  

¥52,000

CONTACT
US
RoHS  

¥17,000

CONTACT
US
RoHS  

¥52,000

CONTACT
US