BK7雙凸透鏡具有正焦距,兩個(gè)表面均為凸面且曲率半徑通常相等,能將平行光線匯聚到焦點(diǎn),也可將點(diǎn)光源轉(zhuǎn)化為準(zhǔn)直光束。它在有限共軛的成像應(yīng)用中表現(xiàn)優(yōu)異,當(dāng)物距與像距之比(共軛比)介于1:5至5:1之間時(shí),能有效減小球差等像差,特別適用于1:1成像系統(tǒng)或中繼成像。常見的N-BK7是其經(jīng)典材料基底,在可見光到近紅外波段(約350nm-2000nm)擁有良好的透過率本產(chǎn)品提供未鍍膜版本及多種增透膜選項(xiàng):VIS鍍膜(400-700nm)平均反射率<0.5%,NIR鍍膜(700-1100nm)適用于近紅外應(yīng)用,SWIR鍍膜(1100-1700nm)專為短波紅外優(yōu)化。直徑規(guī)格覆蓋6mm-25.4mm,滿足不同光學(xué)系統(tǒng)需求。
· 光學(xué)元件材料:BK7| 型號(hào) | OLA-060-10-B | OLA-127-15-B | OLA-127-20-B | OLA-127-30-B | OLA-127-40-B | OLA-127-50-B | OLA-127-100-B |
| 工作波長(zhǎng) | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm |
| 光學(xué)元件材質(zhì) | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 |
| 直徑 | 6.0 mm | 12.7 mm | 12.7 mm | 12.7 mm | 12.7 mm | 12.7 mm | 12.7 mm |
| 直徑公差 | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm |
| 通光孔徑 | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA |
| 中心厚度 | 2.4 mm | 4.7 mm | 3.9 mm | 3.1 mm | 2.8 mm | 2.6 mm | 2.2 mm |
| 中心厚度公差 | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm |
| 邊緣厚度 | 1.5 mm | 1.8 mm | 1.8 mm | 1.8 mm | 1.8 mm | 1.8 mm | 1.8 mm |
| 曲率半徑 | 9.9 mm | 14.6 mm | 19.9 mm | 30.4 mm | 40.7 mm | 51.1 mm | 102.6 mm |
| 設(shè)計(jì)波長(zhǎng) | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm |
| 焦距 | 10.0 mm | 15.0 mm | 20.0 mm | 30.0 mm | 40.0 mm | 50.0 mm | 100.0 mm |
| 焦距公差 | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% |
| 背焦距 | 9.2 mm | 13.4 mm | 18.7 mm | 28.9 mm | 39.1 mm | 49.1 mm | 99.3 mm |
| 鍍膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 |
| 增透膜 | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) |
| 表面光潔度 | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) |
| 曲面局部光圈 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| 曲面光圈 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 偏心度 | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin |
| 損傷閾值 | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) |
| 型號(hào) | OLA-254-50-B | OLA-254-75-B | OLA-254-100-B | OLA-254-150-B | OLA-254-200-B | OLA-254-300-B | OLA-254-400-B | OLA-254-750-B |
| 工作波長(zhǎng) | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm | 700 nm-1100 nm |
| 光學(xué)元件材質(zhì) | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 |
| 直徑 | 25.4 mm | 25.4 mm | 25.4 mm | 25.4 mm | 25.4 mm | 25.4 mm | 25.4 mm | 25.4 mm |
| 直徑公差 | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm | +0.00/-0.10 mm |
| 通光孔徑 | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA | 90% CA |
| 中心厚度 | 5.2 mm | 4.1 mm | 3.6 mm | 2.8 mm | 2.5 mm | 2.4 mm | 2.2 mm | |
| 中心厚度公差 | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | ±0.1 mm | |
| 邊緣厚度 | 2.0 mm | 2.0 mm | 2.0 mm | 2.0 mm | 2.0 mm | 2.0 mm | 2.0 mm | |
| 曲率半徑 | 50.6 mm | 76.6 mm | 102.6 mm | 205.6 mm | 308.6 mm | 411.7 mm | 772.2 mm | |
| 設(shè)計(jì)波長(zhǎng) | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm | 587.6 nm |
| 焦距 | 50.0 mm | 75.0 mm | 100.0 mm | 150.0 mm | 200.0 mm | 300.0 mm | 400.0 mm | 750.0 mm |
| 焦距公差 | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% |
| 背焦距 | 48.2 mm | 73.6 mm | 98.8 mm | 199.1 mm | 299.2 mm | 399.2 mm | 749.3 mm | |
| 鍍膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 | 增透膜 |
| 增透膜 | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) | Ravg<0.5%a@工作波長(zhǎng)(6°入射角,單面) |
| 表面光潔度 | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) | 60/40(部分型號(hào)優(yōu)于此光潔度) |
| 曲面局部光圈 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| 曲面光圈 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 偏心度 | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin | ≤3 arcmin |
| 損傷閾值 | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) | 0.80J/cm2@980nm,190fs,100Hz,Ø12.684μm (100 Pulses) |