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CO2 Test Instrument 4260nm Bandpass Filter

CO2 Test Instrument 4260nm Bandpass Filter

4260nm carbon dioxide CO2 detection infrared bandpass filter It is mainly used for CO2 CO2 detection instruments to improve the signal-to-noise ratio of detecting co2. 1. the product introduction Kingki's high-performance narrow-band infrared filter with spectral coverage from 210nm to...

  • Features & Specification

    4260nm carbon dioxide CO2 detection infrared bandpass filter

    It is mainly used for CO2 CO2 detection instruments to improve the signal-to-noise ratio of detecting co2.

    1. the product introduction

    Kingki's high-performance narrow-band infrared filter with spectral coverage from 210nm to 5400nm has long life, no drift, high transmittance, deep cutoff, high quality and low price.

    image001.jpg

    (4300nm carbon dioxide CO2 infrared bandpass filter)


    2. CO2 infrared filter parameter curve: (You can fill in the demand table at the end of the text to tell us that you want the product)

    image003.jpg


    3. the application:

    4300nmCO2 infrared bandpass filter, mainly used for CO2 detection, improving signal-to-noise ratio.

    Commonly used to detect co2 scenes:

    CO2 monitoring of various industrial and agricultural plants, workshops, greenhouses, clean rooms, etc.

    Ventilation control and environmental quality monitoring for homes, villas, office buildings, conference rooms, classrooms, etc.

    Ventilation control and environmental quality monitoring in public places such as hotels, exhibition halls, hospitals, shopping malls, bars, restaurants, airports, railway stations, entertainment halls, theaters, etc.

    Units that produce and use carbon dioxide gas.


    4. the company's strength

    Kingki has long been responsible for the research and production of military optical coatings. The chief engineer has more than 40 years of military optical coating experience, 33 national authorized patents, and nine scientific and technological achievements won the People's Republic of China Science and Technology Progress Award.

    Kingki has a high-end factory building of 4,000 square meters, 13 sets of advanced coating machines and complete test equipment, with the ability to mass produce high-end optical filters.

    Kingki's wide range of products, excellent performance, quality and cheap, prompt delivery.


    5. Demand table

    band pass filters


    AOI

    central

    FWHT

    Tpek

    block

    OD

    metal

    D

    purpose

    quantity

    delivery

    e.g.1

    785±2nm

    10±2

    ≥80%

    200-1100

    6

    no

    10

    fluorometric

    2


    yours














    金吉奥梦公司实力1.jpg


    Zinc sulfide has an index of around 2.2 at 2 µm and 2.15 at 15 µm. It has suf- ficient transparency for use as a quarter-wave antireflection coating over the range 0.4–25 µm. Germanium, silicon, gallium arsenide, indium arsenide, and indium antimonide can all be treated satisfactorily by a single layer of zinc sulfide. The procedure to be followed for hard, rugged zinc sulfide films is described in a paper by Cox and Hass [1]. The substrate should be main- tained at around 150° C during coating and cleaned by a glow discharge immediately before coating. The transmittance of a germanium plate with a single-layer zinc sulfide antireflection coating is shown in Figure 4.2.

    Zinc sulfide, even deposited under the best conditions, can deteriorate after prolonged exposure to humid atmospheres. Somewhat harder and more robust coatings are produced with cerium oxide or silicon monoxide. Cerium oxide, when deposited at a substrate temperature of 200° C or more, forms very hard and durable films of refractive index 2.2 at 2 µm. Unfortunately, in common with many other materials it displays a slight absorption band at 3 µm owing to adsorbed water vapor. Silicon monoxide does not show this water vapor band to the same degree, and so Cox and Hass have recom- mended this material as the most satisfactory for coating germanium and silicon in the near infrared. The index of silicon monoxide evaporated in a good vacuum at a high rate is around 1.9. The transmittance of a silicon plate coated on both sides with silicon monoxide is shown in Figure 4.3.


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