All Categories

History

Optical inspection equipment Optical measurement tools Diffraction type diffuser plate-Diffraction type diffuser plate
Optical inspection equipment Optical measurement tools Diffraction type diffuser plate-ND Seiko Co., Ltd.

Optical inspection equipment Optical measurement tools Diffraction type diffuser plate
ND Seiko Co., Ltd.

ND Seiko Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

38.9hours


About This Product

In addition to diffusing light, various degrees of diffusion are available, making it ideal for adjusting light intensity when measuring the optical characteristics of a light source.

■Summary

A diffuser plate is used to diffuse the light from the light source and obtain uniform light with no unevenness in the amount of light. In particular, it contributes to improved repeatability regarding reproducibility when measuring light source colors. Diffractive diffusers (LSDs) have the effect of suppressing chromaticity measurement dispersion to a lower level than ordinary diffusers or ND filters, and it is also possible to vary the light intensity by selecting the divergence angle.

■Features

・Equivalent effect to lenses The randomly placed micron-level surface structure created using a surface relief hologram pattern can be expected to have the same effect as a micro-concave lens array, diffusing light through refraction. ・Freedom of choice of light source Since there is no wavelength dependence, it is effective for various light sources such as laser light, white light, and LED light. Even with coherent light and incoherent light, it is possible to diffuse and shape the light into a circle, ellipse, or rectangle at any angle. ・High transmittance It has a high transmittance of 85% to 92% in the wavelength range of 365nm to 1,600nm, allowing you to fully utilize the power of the light source. (The transmittance varies depending on the transmittance of the material, the thickness of the board, the presence or absence of options, etc.) ・Light distribution control The incident wavelength light is distributed (diffused) within a predetermined range and at the same time a high level of uniformity is achieved. It works best with parallel light, but also works with light sources with divergent angles.

■Comparison with general diffuser plate

LSD forms a hologram pattern with fine grooves of approximately 5 μm in diameter on the substrate surface, allowing the light divergence angle to be set arbitrarily, and because the pattern has no periodicity, moiré fringes and color misalignment do not occur. It is designed to be difficult. Additionally, since the diffusion angle can be selected, stable diffusion and high light density (increasing transmittance) can be achieved by combining it with lamp-type LEDs that have a divergence angle. On the other hand, general diffuser plates are polished by sandblasting a substrate (sapphire, quartz, BK7, etc.) with grit depending on the roughness and processed into a matte finish, so the polishing may be done in one direction. Even with common diffuser plates that claim to have high precision, most of them are polished in two directions: top, bottom, left, and right, so the diffuser surface has directionality, and the diffused light may cause moiré fringes or color misalignment.

  • Product

    Optical inspection equipment Optical measurement tools Diffraction type diffuser plate

Share this product


50+ people viewing


Free
Get started with our free quotation service - no cost, no obligation.

No Phone Required
We respect your privacy. You can receive quotes without sharing your phone number.

1 Models of Optical inspection equipment Optical measurement tools Diffraction type diffuser plate

Image Part Number Price (excluding tax) Aluminum adapter LSD material LSD thickness LSD entrance/exit surface
Optical inspection equipment Optical measurement tools Diffraction type diffuser plate-Part Number-Diffraction type diffuser plate

Diffraction type diffuser plate

$ 58.50〜

Φ11.5mm×2.5mm Black alumite treatment

Polycarbonate

0.25mm

Φ8.0mm

Customers who viewed this product also viewed

Reviews shown here are reviews of companies.

See More Diffraction Grating Products

Other products of ND Seiko Co., Ltd.

Reviews shown here are reviews of companies.


View more products of ND Seiko Co., Ltd.

About Company Handling This Product

Response Rate

100.0%


Response Time

38.9hrs

  • Japan

This is the version of our website addressed to speakers of English in the United States. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.

Copyright © 2025 Metoree