Polarized light microscopes can measure the properties of asbestos, such as refractive indices, birefringence, retardation, extinction angles, pleochroism and signs of elongation, helping in the identification of asbestos. LV100ND POL/DS is a high-performance, polarized light microscope with accessories that enable dispersion staining observation at up to 400x magnification.
Microscopes for dispersion staining allow for qualitative analysis and identification of asbestos
Polarized light microscopes can measure the properties of asbestos, such as refractive indices, birefringence, retardation, extinction angles, pleochroism and signs of elongation, helping in the identification of asbestos. LV100ND POL/DS is a high-performance, polarized light microscope with accessories that enable dispersion staining observation at up to 400x magnification.
Highlights
The LV100ND POL/DS employs optics with high extinction factors, facilitating detection and observation of high-precision optical properties.
The LV100ND POL/DS enables analysis of birefringence, extinction angles, signs of elongation, refractive indices, birefringence magnitudes, and pleochroism of asbestos.
Changing the objectives and PH modules allows observation of asbestos dispersion colors corresponding to the refractive indices of the immersion liquid. The LV100ND POL/DS enables both quantitative analysis and dispersion staining observation of asbestos.
A fully rotatable circular graduated stage offers trouble-free sample rotation and accurate analysis during polarization observation.
Birefringence:Mixture of rock wool and chrysotile
 |  |
| The cross Nicols, diagonal position | The cross Nicols, extinction position |
Extinction angle:Amosite
 |  |
| The parallel Nicols, cleavage face aligned with the crosshair | The cross Nicols, extinction angle measured |
Sign of elongation
 |  |
| Amosite Positive: Subtractive diagonal position | Crocidolite Negative: Additive diagonal position |
Refractive index (refraction index of the liquid nD=1.605):Chrysotile and amosite
 |  |
| The upper part of a specimen is focused | The lower part of a specimen is focused |
Retardation (optical path difference) for obtaining birefringence magnitude:Amosite
 |  |  |
| Diagonal position | Subtractive diagonal position confirmed (a test plate is inserted) | Analyzer rotation angle measured (Senarmont compensator is inserted) |
Pleochroism:Crosidolite
 |  |
| Parallel to vibration direction of polarizer | Orthogonal to vibration direction of polarizer |
Dispersion colors
 |  |  |
Chrysotile nD = 1.550, red-violet to blue | Amosite nD = 1.680, pink | Crocidolite nD = 1.680, orange to red ocher |
| 型號 | LV100ND POL/DS |
| 光學(xué)系統(tǒng) | CFI60無限遠(yuǎn) |
| 照明 | 新型照明器（亮度超過100 W） |
| 12 V-50 W鹵素?zé)簦ㄐ滦?/span>LV-HL50W型號）;內(nèi)置12 V-50 W直流變壓器;帶有后鏡片的預(yù)定心燈箱;內(nèi)置復(fù)眼鏡頭; ND8，NCB11濾光片 | |
| 調(diào)焦 | 同軸粗/細(xì)調(diào)焦旋鈕;焦點(diǎn)：30毫米;粗：每轉(zhuǎn)14毫米; |
| 微調(diào)：每轉(zhuǎn)0.1毫米;最小讀數(shù)：以1μm為增量（左：粗/微，右：微調(diào)旋鈕） | |
| 目鏡 | 10倍; FOV22; CM型有十字準(zhǔn)線和千分尺，目鏡刻度 |
| 鏡筒 | 用于偏光顯微鏡的P-TT3三目鏡筒;帶十字線 |
| 偏光中間管 | 檢偏鏡可拆卸;可切換的正視/錐光觀察;帶板/補(bǔ)償槽;聚焦和定心Bertrand鏡頭 |
| 檢偏鏡 | 360°旋轉(zhuǎn)表盤;最小讀數(shù)角度0.1° |
| 物鏡轉(zhuǎn)盤 | 可對中五孔物鏡轉(zhuǎn)盤;帶DIN補(bǔ)償器插槽 |
| 載物臺 | 用于偏光顯微鏡的高精度圓形載物臺;可水平旋轉(zhuǎn)360°; |
| 可以固定在特定的位置;以1°為增量刻度（0.1°讀數(shù)，帶刻度）; 45°點(diǎn)擊停止 | |
| 可連接的機(jī)械平臺;游標(biāo)0.1毫米 | |
| 聚光器 | LV-CUD通用冷凝器干燥（NA 0.9），DC PH1，DC PH2和LV-C 2-4x鏡頭是必需的 |
| P擺出式冷凝器（可選） | |
| 起偏鏡 | C-SP簡易偏光鏡;一鍵式外擺式 |
| 物鏡 | 偏振：CFI Achromat P 4X，P 10X，LWD P 20X，P 40X，P 100X油 |
| 分散：CFI Achromat R-DS 10X，CFI Plan Achromat C-DS 10X，CFI Plan Fluor R-DS 40X | |
| 補(bǔ)償器 | P-CL1/4λ＆色板，石英楔形補(bǔ)償器或Sénarmont |
| 補(bǔ)償器可以插入偏振中間管槽 | |
| 測量濾片 | IF546 / 12濾光片（?45mm） |
| 能量消耗 | 1.2 A / 75 W |
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