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  2. Optical parts Ultra-high vacuum window TF type (Shibuya Optical Co., Ltd.)
Optical parts Ultra-high vacuum window TF type-TF34
Optical parts Ultra-high vacuum window TF type-Shibuya Optical Co., Ltd.

Optical parts Ultra-high vacuum window TF type
Shibuya Optical Co., Ltd.

About This Product

It is the only device in the world that has cleared the harsh standards for use as an ultra-high vacuum window for measurements in the International Thermonuclear Experimental Reactor (ITER), which is being promoted by six poles: Japan, the United States, the EU, Russia, China, and South Korea. Ultra-high vacuum windows are windows for observing (measuring) the inside of a vacuum container, and can be used up to the ultra-high vacuum region thanks to special sealing technology in which various crystal window materials, quartz window materials, etc. are crimped and mounted on elastic metal.

■Type of installed window material (various coats and high-precision polishing possible)

CaF2, MgF2, Lif, Ge, Si, KRS-5, BK7, crystal, synthetic quartz, lead glass, sapphire, etc.

■Features

・Extremely large diameter can also be manufactured. ・No thermal distortion on the window Since there is no thermal assembly process, a highly accurate transmission wavelength without distortion can be obtained. ・Maintaining surface accuracy For example, after assembling a λ/10 window, λ/10 can be maintained in approximately 80% of the area excluding the outer periphery. (Standard product is optically polished on both sides) ・AR coating, etc. After the window is coated, it is assembled without a thermal process, so there are no spots. Please let us know the transmission wavelength or transmission wavelength band and desired transmittance. ・Crack-proof structure Because the window retains its elasticity, cracks and leaks are less likely to occur even when bolts are tightened unevenly. ・Pressure-resistant structure: Even if the vacuum side reaches positive pressure, there will be no leaks or windows coming off. ・Non-magnetic, non-radiative. Can be used optimally in high radiation environments without disturbing the magnetic field. (Standard flange: SUS304L, special order product: SUS316L, etc.) ・Radiation resistance Gamma rays 1 x 106 x rays/h with a total of 6.3 x 109 or more. (However, in the case of ZnSe) ・Shock resistance: 30G/3,000 cycles or more in XYZ directions. ・He leakage amount <1×10^-10Pam3/sec As a result, it is mostly <0.1×10^-10Pam3/sec. ・Bake temperature <200℃ However, since it is a mechanical seal, it may differ depending on the size and type of window material. ・Connection flange CF standard flange ・Various types of windows are available that enable vacuum introduction of transmission wavelength bands from ultraviolet to visible light to infrared. ・Special specifications are welcome. Coated products, high surface precision, high pressure applications, lenses, wedges, Brewster, etc. ・Inspection report submitted He leak, hood method performed at room temperature.

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    Optical parts Ultra-high vacuum window TF type

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1 Models of Optical parts Ultra-high vacuum window TF type

Image Part Number Price (excluding tax) ≒Length Flange thickness Flange outer diameter Window effective diameter
Optical parts Ultra-high vacuum window TF type-Part Number-TF34

TF34

Available upon quote

3

10

34

12

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About Company Handling This Product

Shibuya Optical Co., Ltd.

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