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Thorlabs雙遠(yuǎn)心透鏡
用于機(jī)器視覺的Thorlabs雙遠(yuǎn)心透鏡
（1）雙遠(yuǎn)心透鏡能夠在整個(gè)景深范圍內(nèi)提供不變的放大率
（2）可選放大率：0.051X, 0.128X, 0.243X, 0.528X, 1.00X 或者 2.00X
（3）兼容帶大可達(dá)2/3英寸探頭的C型安裝相機(jī)
（4）每個(gè)透鏡都帶各自的測量和性能數(shù)據(jù)一起發(fā)貨
Thorlab已經(jīng)和Navitar公司合作設(shè)計(jì)一系列機(jī)器視覺應(yīng)用下的遠(yuǎn)心透鏡。有了雙遠(yuǎn)心透鏡，物空間和像空間的放大率就都不取決于在視場中的距離（景深范圍內(nèi)）或者位置。這個(gè)特點(diǎn)非常適合機(jī)器視覺應(yīng)用：在測量面積時(shí)，一個(gè)遠(yuǎn)心透鏡能不用考慮物距或位置的變化，得到相同的測量結(jié)果。關(guān)于遠(yuǎn)心透鏡的詳細(xì)信息以及它們和標(biāo)準(zhǔn)透鏡的區(qū)別，請(qǐng)見遠(yuǎn)心透鏡教程標(biāo)簽。 Thorlabs供應(yīng)0.128X和0.528X兩種放大率的遠(yuǎn)心透鏡。每一個(gè)透鏡都有一個(gè)可變光闌改變f/#值。此類透鏡設(shè)計(jì)用于2/3英寸探頭，比如科學(xué)CCD相機(jī)上的探頭。其它CCD和CMOS相機(jī)中小于2/3英寸的探頭也能使用此類透鏡，但是視場有所減小（其它規(guī)格探頭的視場值可以在規(guī)格標(biāo)簽中找到）。透鏡外殼的外邊帶有C型安裝（1.000英寸-32）螺紋，也兼容我們的相機(jī)。使用SM1A10螺紋適配器，C型安裝能連接上內(nèi)或外SM1（1.000英寸-40）螺紋使之兼容我們的透鏡套筒或其他SM1螺紋安裝座。 每一個(gè)透鏡都有詳細(xì)測試報(bào)告展，給出準(zhǔn)確規(guī)格和透鏡圖表；下表中可獲取PDF報(bào)告示例。圖表展示的典型性能有場曲率、畸變、相對(duì)照度和調(diào)制轉(zhuǎn)移函數(shù)（MTF），詳見上面的曲線標(biāo)簽。 請(qǐng)注意，由于MVTC23005和MVTC23013的大小和重量，用戶必須小心地適當(dāng)安裝并支撐這些透鏡。
MVTC23005b
| Depth of Field for MVTC230050.051X Telecentric Lens | |
| f/# | Depth of Field |
| 7.7 | ±260 mm |
| 11 | ±370 mm |
| 16 | ±540 mm |
| 22 | ±740 mm |
| Field of View for MVTC230050.051X Telecentric Lens | |
| Sensor Format | Field of View (Full) |
| 1/3" | 118 mm |
| 1/2" | 156 mm |
| 1/1.8" | 174 mm |
| 2/3" | 214 mm |
MVTC23013
| Depth of Field for MVTC230130.128X Telecentric Lens | |
| f/# | Depth of Field |
| 6.2 | ±15 mm |
| 12 | ±25 mm |
| 18 | ±40 mm |
| 22 | ±50 mm |
| Field of View for MVTC230130.128X Telecentric Lens | |
| Sensor Format | Field of View (Full) |
| 1/3" | 47.0 mm |
| 1/2" | 62.7 mm |
| 1/1.8" | 70.0 mm |
| 2/3" | 86.2 mm |
MVTC23024
| Depth of Field for MVTC230240.243X Telecentric Lens | |
| f/# | Depth of Field |
| 6.5 | ±11 mm |
| 12 | ±20 mm |
| 18 | ±30 mm |
| 22 | ±37 mm |
| Field of View for MVTC230240.243X Telecentric Lens | |
| Sensor Format | Field of View (Full) |
| 1/3" | 24.7 mm |
| 1/2" | 32.9 mm |
| 1/1.8" | 37.0 mm |
| 2/3" | 45.2 mm |
MVTC23053
| Depth of Field for MVTC230530.528X Telecentric Lens | |
| f/# | Depth of Field |
| 4.6 | ±1 mm |
| 7 | ±1.15 mm |
| 12 | ±1.5 mm |
| 22 | ±2.5 mm |
| Field of View for MVTC230530.528X Telecentric Lens | |
| Sensor Format | Field of View (Full) |
| 1/3" | 11.4 mm |
| 1/2" | 15.1 mm |
| 1/1.8" | 16.9 mm |
| 2/3" | 20.8 mm |
MVTC23100
| Depth of Field for MVTC231001.00X Telecentric Lens | |
| f/# | Depth of Field |
| 5.6 | ±0.9 mm |
| 8 | ±1.3 mm |
| 11 | ±1.8 mm |
| 16 | ±2.6 mm |
| Field of View for MVTC231001.00X Telecentric Lens | |
| Sensor Format | Field of View (Full) |
| 1/3" | 6.0 mm |
| 1/2" | 8.0 mm |
| 1/1.8" | 8.3 mm |
| 2/3" | 11.0 mm |
MVTC23200
| Depth of Field for MVTC232002.00X Telecentric Lens | |
| f/# | Depth of Field |
| 3.7 | ±0.3 mm |
| 8 | ±0.6 mm |
| 16 | ±1.3 mm |
| 32 | ±2.6 mm |
| Field of View for MVTC232002.00X Telecentric Lens | |
| Sensor Format | Field of View (Full) |
| 1/3" | 3.0 mm |
| 1/2" | 4.0 mm |
| 1/1.8" | 4.2 mm |
| 2/3" | 5.5 mm |
| Key Specificationsa | ||||||
| Item # | MVTC23005b | MVTC23013 | MVTC23024 | MVTC23053 | MVTC23100 | MVTC23200 |
| Magnification | 0.051X | 0.128X | 0.243X | 0.528X | 1.00X | 2.00X |
| Working Distancec | 530 mm | 176 mm | 103 mm | 44 mm | 62.2 mm | 55.9 mm |
| Depth of Fieldd | ±260 mm | ±15 mm | ±11 mm | ±1 mm | ±0.9 mm | ±0.3 mm |
| Field of View for2/3" Format Sensor (Full)e | 214 mm | 86.2 mm | 45.2 mm | 20.8 mm | 11 mm | 5.5 mm |
| Modulation Transfer Function(MTF)f | >51% | >55% | >51% | >51% | >42% | >39% |
| Sample Test Report |  |  |  |  |  |  |
| Lens Mount | C-Mount (1.000"-32) | |||||
| Lens Lengthg,h | 24.84" (630.8 mm) | 11.13" (282.8 mm) | 6.36" (161.6 mm) | 5.29" (134.4 mm) | 2.58" (65.6 mm) | 4.05" (102.9 mm) |
| Lens Housing Diameterat Largest Pointh | Ø9.44" (Ø239.8 mm) | Ø4.06" (Ø103.0 mm) | Ø2.60" (Ø66.0 mm) | Ø1.45" (Ø36.8 mm) | Ø1.48" (Ø37.7 mm) | Ø1.48" (Ø37.7 mm) |
| Weight | 13.0 kg (28.7 lbs)b | 1.7 kg (3.7 lbs) | 0.61 kg (1.34 lbs) | 0.7 kg (1.5 lbs) | 0.18 kg (0.40 lbs) | 0.26 kg (0.56 lbs) |
完整規(guī)格請(qǐng)查看規(guī)格標(biāo)簽。
MVTC23005裝載在耐重手提箱內(nèi)。
工作距離定義為從*個(gè)透鏡表面到景深中心。
設(shè)定在20 lp/mm，50% MTF, 大通光孔徑。
視場規(guī)定為沿探頭對(duì)角線方向。其它規(guī)格探頭的視場值可以在規(guī)格標(biāo)簽中找到。
設(shè)定在70 lp/mm，穿過視場。
不包括C安裝座
詳細(xì)信息請(qǐng)點(diǎn)擊產(chǎn)品編號(hào)旁邊的紅色文件標(biāo)簽。
| Item # | MVTC23005 | MVTC23013 | MVTC23024 | MVTC23053 | MVTC23100 | MVTC23200 |
| Magnification | 0.051X | 0.128X | 0.243X | 0.528X | 1.00X | 2.00X |
| Magnification Error | ± 1% | ± 2% | ± 1% | ± 1% | ± 1% | ± 1% |
| Image Diagonal | 11 mm (2/3" Format) | |||||
| Working Distancea | 530 mm | 176 mm | 103 mm | 44 mm | 62.2 mm | 55.9 mm |
| Depth of Fieldb | ±260 mm | ±15 mm | ±11 mm | ±1 mm | ±0.9 mm | ±0.3 mm |
| Working f/#c | f/8 | f/7 | f/8 | f/7 | f/11 | f/11 |
| System f/# | f/7.7 - f/22 | f/6.2 - f/22 | f/6.5 - f/22 | f/4.6 - f/22 | f/5.6 - f/16 | f/3.7 - f/32 |
| Field of View for2/3" Format Sensor (Full)d | 214 mm | 86.2 mm | 45.2 mm | 20.8 mm | 11 mm | 5.5 mm |
| Telecentricity | 0 ± 0.03° | 0 ± 0.01° | 0 ± 0.04° | 0 ± 0.17° | 0 ± 0.04° | 0 ± 0.02° |
| Max Distortion | 0 ± 0.03% | 0 ± 0.01% | 0 ± 0.02% | 0 ± 0.035% | 0 ± 0.002% | 0 ± 0.01% |
| Modulation Transfer Function (MTF)e | >51% | >55% | >51% | >51% | >42% | >39% |
| Coherent Transfer Function (CTF)e | >63% | >67% | >63% | >62% | >54% | >49% |
| Image NA | 0.0614 | 0.071 | 0.062 | 0.071 | 0.045 | 0.045 |
| Object NA | 0.00315 | 0.0091 | 0.015 | 0.038 | 0.045 | 0.090 |
| Lateral Color | R-G: < 1.7 µmB-G: < 0.08 µm | R-G: < 2.8 µmB-G: < 1 µm | R-G: < 1 µmB-G: < 1 µm | R-G: < 3 µmB-G: < 1 µm | R-G: < 1.7 µmB-G: < 0.05 µm | R-G: < 2.3 µmB-G: < 0.4 µm |
| Average Transmittance | 96%f | 97%f | 97%f | 97%f | 94%f | 93%g |
| Lens Mount | C-Mount (1.000"-32) | |||||
| Lens Lengthh,i | 24.84" (630.8 mm) | 11.13" (282.8 mm) | 6.36" (161.6 mm) | 5.29" (134.4 mm) | 2.58" (65.6 mm) | 4.05" (102.9 mm) |
| Lens Housing Diameterat Largest Pointi | Ø9.44" (Ø239.8 mm) | Ø4.06" (Ø103.0 mm) | Ø2.60" (Ø66.0 mm) | Ø1.45" (Ø36.8 mm) | Ø1.48" (Ø37.7 mm) | Ø1.48" (Ø37.7 mm) |
| Lens Weight | 13.0 kg (28.7 lbs) | 1.7 kg (3.7 lbs) | 0.61 kg (1.34 lbs) | 0.7 kg (1.5 lbs) | 0.18 kg (0.40 lbs) | 0.26 kg (0.56 lbs) |
工作距離定義為從*個(gè)透鏡表面到景深中心。
設(shè)定在20 lp/mm, 50% MTF, 大通光孔徑。不同通光孔徑的景深由下表給出。
工作f/#值用于決定其它規(guī)格除非其它特別說明。
視場規(guī)定為沿探頭對(duì)角線方向。其它規(guī)格探頭的視場值可以在下表中找到。
定為70 lp/mm，橫穿視場。
定為460 nm - 630 nm.
定為486 nm - 656 nm.
不含帶螺紋的C型安裝座。
| Item # | Lens Magnification | Field Curvature | Distortion | Relative Illumination@ 588 nm | MTF | ||
| MVTC23005 | 0.051X |  |  |  | f/7.7 | f/11 | f/22 |
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| MVTC23013 | 0.128X |  |  |  | f/6.2 | f/12 | f/22 |
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| MVTC23024 | 0.243X |  |  |  | f/6.5 | f/12 | f/22 |
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| MVTC23053 | 0.528X |  |  |  | f/4.6 | f/7 | f/22 |
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| MVTC23100 | 1.00X |  |  |  | f/5.6 | f/8 | f/16 |
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| MVTC23200 | 2.00X |  |  |  | f/3.7 | f/8 | f/32 |
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