61-6882-41 Cold Filter CLDF-50S
Analyzer, Testing Equipment

61-6882-41 Cold Filter CLDF-50S

model: 61-6882-41
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6882-41Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6882-41
Product Brand: SIGMAKOKI CO., LTD.

Features

  • Tungsten lamps and halogen lamps emit hot rays (infrared rays) along with visible light, which can raise the temperature of the irradiator.
  • A cold filter transmits visible light and attenuates infrared light, thereby preventing the temperature of the irradiator from rising.
  • By combining the rapid decay of transmittance from the visible to the near-infrared, which is characteristic of dielectric multilayer mirrors, with the high absorptivity on the long wavelength side of the infrared (1000~2000 nm), which is characteristic of hot-wire absorption filters, the entire visible light region can be transmitted and infrared light can be efficiently blocked.
  • It can also be ***d as a powerful infrared cut filter for CCD cameras.
  • This filter prevents infrared light from appearing in the image.
  • It can also be ***d in biomedical observation microscopes where you do not want the temperature of the specimen to change due to illumination.
  • * If there is light incident at an angle from an angle to the filter, the transmittance will decrease on the longer wavelength side of the visible range.
  • Placing the filter near a light source such as a lamp can ca*** sudden temperature changes due to infrared absorption, which can damage the filter.
  • * There is no visible anti-reflection coat on the back of the cold filter.
  • * For this reason, absorption by the hot-wire absorption filter and backside reflection (4%) can ca*** loss of 20% or less.

Spec

  • [
    common specification]
  • Material: Heat absorbing glass
  • Incident angle: 0°
  • Adaptive wavelength: 400 - 2000nm (block 900nm or more)
  • Scratch - dig: 60?40
  • Effective diameter: Circle inscribed to 90% of outer dimensions of square
  • [Individual specification]
  • Transmittance band wavelength (0 degree incidence): 400 - 600nm
  • Transmittance band transmittance rate (0 degree incidence): >80%
  • Cut-off band wavelength (0 degree incidence): 800 - 2000nm
  • Cut-off band transmittance rate (0 degree incidence): <10%
  • Half wavelength (50%): 700±20nm
  • RoHS conform product

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