暗場照明裝置對目標區域提供低角度照明。這些機器視覺光源提高表麵特征的對比度，例如激光壓印或雕刻的標識，特別適用於如BGA植球，讀取激光刻蝕標記或檢查表麵幾何輪廓之類的應用。
暗場照明裝置使用一個單一層LED安裝在相對於光軸 70º (DF 50 模型)或 90º (DF 100, DF 150-1 模式)，或三層LED安裝在相對於光軸 75º (DF 150-3 模型)。
- 三種顏色和五個尺寸
- 提供有效低角度照明
- 提高對比表麵特征例如激光壓印或雕刻標記
- 高速機器視覺應用具有頻閃模式
照明實例:
金屬表麵壓印logo：低角度照明獲得瞭高對比度圖像
工作原理:
| Darkfield 50 Continuous | |
| Part Number | Description |
| NER-011609311 | DF-50, R LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011609321 | DF-50, W LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011609331 | DF-50 B LED-ND 24V-C 2M [6.6'] CBL W/DB9 |
| Darkfield 100 Continuous | |
| NER-011601520 | DF-100-1, R LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011601521 | DF-100-1, R LED-D, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| Darkfield 150 Continuous | |
| NER-011600020 | DF-150-1, R LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600031 | DF-150-1, W LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600070 | DF-150-1, B LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600021 | DF-150-1, R LED-D, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600041 | DF-150-1, W LED-D, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600208 | DF-150-3, R LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600206 | DF-150-3, W LED-ND, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| Darkfield 200 Continuous | |
| NER-011603300 | DF-200-1, R LED-D, 24V-C, 4.5M (15 ft.) Cbl w/Flying Leads |
| Power Supply Darkfields Continuous | |
| NER-011504100 | DSP60 24VDC 2.5A DIN Mount Power Supply |
| Power Supply Cordsets | |
| NER-030028300 | AC Power Cord for DSPxx Power Supply, US |
| NER-030028400 | AC Power Cord for DSPxx Power Supply, EU |
| NER-030028500 | AC Power Cord for DSPxx Power Supply, UK |
| Darkfield 50 Strobed | |
| Part Number | Description |
| NER-011609312 | DF-50, R LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011609322 | DF-50, W LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011609332 | DF-50 B LED-ND 24V-S 2M [6.6'] CBL W/DB9 |
| Darkfield 100 Strobed | |
| NER-011601502 | DF-100-1, R LED-D, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| Darkfield 150 Strobed | |
| NER-011600004 | DF-150-1, R LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600032 | DF-150-1, W LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600080 | DF-150-1, B LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600007 | DF-150-1, R LED-D, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600042 | DF-150-1, W LED-D, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600209 | DF-150-3, R LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| NER-011600207 | DF-150-3, W LED-ND, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| Darkfield 200 Strobed | |
| NER-011603301 | DF-200-1, R LED-D, 24V-S, 4.5M (15 ft.) Cbl w/Flying Leads |
| Power Supply/Controllers Darkfield Strobed | |
| NER-011504100 | DSP60 24VDC 2.5A DIN Mount Power Supply |
| 98-000152-01 | NL200 Lighting Controller (Front Panel Control Only) |
| 98-000152-02 | NL220 Lighting Controller (Ethernet Control Only) |
| 98-000152-03 | NL220F Lighting Controller (Ethernet Control only with Fast Strobe Capability) |
| Power Supply Cordsets | |
| NER-030028300 | AC Power Cord for DSPxx Power Supply, US |
| NER-030028400 | AC Power Cord for DSPxx Power Supply, EU |
| NER-030028500 | AC Power Cord for DSPxx Power Supply, UK |
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