Telecentric lens | 合法醫療器材資訊網
Atelecentriclensisacompoundlensthathasitsentranceorexitpupilatinfinity;intheprior...Telecentriclensestendtobelarger,heavier,andmoreexpensivethannormallensesofsimilarfocallengthandf-number.Thisispartlyduetothe ..
A telecentric lens is a compound lens that has its entrance or exit pupil at infinity; in the prior ... Telecentric lenses tend to be larger, heavier, and more expensive than normal lenses of similar focal length and f-number. This is partly due to the ..
f-theta lens原理 f-theta lens中文 sill f-theta lens F-theta Scan lenses f theta lens功用 f-theta distortion f theta distortion定義 Fisheye lens “柯惠”禮來爾泰鉸接型可裝填固定器及標準/深度抓握型可吸收固定釘釘匣 披 衣 菌 難治 長欣生技口罩評價 長欣生技股票 medline surgical face mask Medline non27375 Medline Amazon Aspartate aminotransferase
F-Theta Lenses Tutorial | 合法醫療器材資訊網
F-theta lenses have been engineered to provide the highest performance in laser scanning or engraving systems. These lenses are ideal for engraving and ... Read More
F | 合法醫療器材資訊網
F-Theta Objektive sind dazu ausgelegt, für verschiedenste Anwendungen einen Laserstrahl auf ein ebenes Bildfeld zu fokussieren. Sie werden sehr häufig mit ... Read More
F | 合法醫療器材資訊網
2016年2月16日 — A non distortion F-Theta lens of 1.37mm focal length has an image circle of d = -pi 1.37 mm = 4.30 mm. Therefor a f=3.17mm F-Theata lens with ... Read More
Fisheye lens | 合法醫療器材資訊網
A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to ... The first such diagonal fisheye was the Fish-eye Takumar 18 mm f/11, released by Pentax (Asahi Optical) in ... For an equisolid angle projection (typical o Read More
Glossary | 合法醫療器材資訊網
A non distortion F-Theta lens of 1.37mm focal length has an image circle of d = -pi 1.37 mm = 4.30 mm ... Source of the various angles and formulae: wikipedia. Read More
Numerical aperture | 合法醫療器材資訊網
Numerical aperture versus f-number — In this sense, the traditional thin-lens definition and illustration of f-number is misleading, and defining it in terms ... Read More
Telecentric lens | 合法醫療器材資訊網
A telecentric lens is a compound lens that has its entrance or exit pupil at infinity; in the prior ... Telecentric lenses tend to be larger, heavier, and more expensive than normal lenses of similar focal length and f-number. This is partly due to the .. Read More
數值孔徑 | 合法醫療器材資訊網
A i = n sin θ = n sin arctan D 2 f ≈ n D 2 f -displaystyle -mathrm NA_i}} =n-sin -theta =n-sin -arctan -frac D}2f}}-approx n-frac D}2f}}} -displaystyle - ... Read More
鱼眼镜头 | 合法醫療器材資訊網
鱼眼镜头指視角接近或等於180°的鏡頭,視角為眾多鏡頭之冠。這類鏡頭一般焦距極短,在135 ... 歷史上,135画幅最廣的魚眼鏡頭是藝康旗下的6毫米f/2.8,視角接近220°。 ... 例如一次成像的全景相机理光THETA,即在机身相对位置布置了两枚鱼眼镜头以采集全天球图像。 ... The prices of these lenses are high, but not extreme. Read More
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