COLO-OPTIC900BLPH Phase Contrast Trinocular Microscope (LED)
OVERVIEW
The COLO-OPTIC900BLPH is a high-performance laboratory phase contrast microscope designed for demanding life-science and medical applications.
It combines infinity-corrected optics, advanced phase contrast, ergonomic trinocular observation and modern NeoLED illumination in a robust platform that fits equally well in
cell culture labs, diagnostics and university teaching.
As part of the COLO.Science microscopy line, OPTIC900 microscopes are optimized for bright, high-contrast images, intuitive daily operation and long-term reliability,
from routine slide screening to live cell observation in flasks and culture vessels.
COLO.SCIENCE KNOWLEDGE
Phase contrast microscopy for living cell culture
Learn more about phase contrast principles, typical applications and how to get the best contrast from your COLO-OPTIC900 microscope on COLO.Science.
TYPICAL APPLICATIONS
- Living cell culture monitoring in flasks and culture dishes
- Microbiology, protozoa and microorganism observation
- Routine clinical and veterinary laboratory microscopy
- Teaching and training in universities and medical schools
- General laboratory biology and life-science research
- Phase contrast and brightfield observation of unstained samples
MODELS & DIMENSIONS
| Model | Head / contrast | Stage type | Dimensions / weight |
|---|---|---|---|
| COLO-OPTIC900BLPH | Trinocular, phase contrast, LED | 156 × 138 mm ceramic stage, integrated mechanical stage | See catalog (PDF) |
TECHNICAL SPECIFICATIONS
| Product name | COLO-OPTIC900BLPH Phase Contrast Trinocular Microscope |
| Type | Laboratory biological phase contrast microscope |
| Eyepieces | Extended EWF 10x/20 mm eyepieces, Ø 30 mm tubes; eyepieces can be secured to the tubes. |
| Head | Trinocular Siedentopf head, 30° inclined tubes, interpupillary distance 52–75 mm, diopter adjustment; Ø 30 mm photo port. Optional ergonomic tilting head (0:100 / 50:50) available. |
| Nosepiece | Reversed revolving nosepiece for 4 objectives (optional version for 5 objectives). |
| Objectives – standard | Infinity plan phase contrast objectives: 4x/0.10, 10x/0.25, S40x/0.65, S100x/1.25 oil. All optics anti-fungus treated and anti-reflection coated. |
| Objectives – optional | Infinity achromatic phase contrast objectives: 4x/0.13, 10x/0.30, 20x/0.40, S40x/0.70, S100x/1.25 oil; Plan phase S60x/0.80 objective; other configurations on request. |
| Stage – standard | 156 × 138 mm ceramic stage with integrated 76 × 54 mm mechanical stage. Very tough ceramic surface protects against marks, scratches and stray light reflections. |
| Stage – optional | 185 × 177 mm rackless stage with double slide holder and integrated 75 × 50 mm rackless mechanical stage; no protruding parts, smoother movement and improved safety. |
| Phase contrast condenser (optional) | Height-adjustable NA 1.25 phase contrast disc condenser with positions for plan phase 10x, 20x, S40x, S60x and S100x oil objectives and a darkfield stop for darkfield contrast up to 400x magnification. |
| Focusing | Coaxial coarse and fine adjustments, 100 graduations, 1 μm per graduation, 100 μm per rotation, total travel approx. 14 mm (up to ~25 mm depending on configuration). Adjustable rack stop to protect samples and objectives; coarse focus with adjustable friction control. |
| Illumination | 5 W adjustable NeoLED illumination with internal 100–240 V power supply. Larger apertures enable higher resolution, close to the theoretical diffraction limit. Very low energy consumption, minimal heat and long LED lifetime. |
| Optical system | Infinity corrected optical system; illumination optimized for IOS plan and plan phase objectives, providing high contrast and maximum resolving power. |
| Power & housing | Internal universal power supply 100–240 V AC; LED light source integrated in a robust, white metal housing. Detailed power values and dimensions: see catalog (PDF). |
STANDARD DELIVERY & ACCESSORIES
- COLO-OPTIC900BLPH microscope stand with trinocular head
- Pair of 10x/20 mm EWF eyepieces (secured)
- Standard set of infinity plan phase contrast objectives (according to configuration)
- Ceramic or rackless stage with integrated mechanical stage (as ordered)
- 5 W NeoLED illumination module with built-in power supply
- Phase contrast condenser or brightfield condenser (depending on configuration)
- Power cable and basic user manual / quick start guide
- Dust cover and basic accessory kit
- Optional: ergonomic tilting head, phase contrast disc condenser, darkfield stop
- Optional: camera adapter and digital camera for documentation
Exact contents according to selected configuration, current catalog and order confirmation.
MAIN TECHNICAL PARAMETERS
| Optical system | Infinity corrected, plan phase contrast |
| Observation methods | Brightfield, phase contrast; optional darkfield (up to 400x) |
| Magnification range | Standard: 40x–1000x (4x, 10x, 40x, 100x oil with 10x eyepieces); Optional: up to 1500x with 60x phase objectives and additional configurations. |
| Head type | Trinocular Siedentopf, 30° inclined, 52–75 mm IPD, diopter adjustment |
| Eyepieces | EWF 10x/20 mm, Ø 30 mm, secured against removal |
| Stage travel | Integrated mechanical stage, travel range matching 76 × 54 mm (standard) or 75 × 50 mm (rackless) specimen area. |
| Focusing precision | Fine focus 1 μm per graduation, 100 μm per rotation; total focusing range approx. 14 mm. |
| Illumination | 5 W NeoLED, adjustable intensity, low heat, long lifetime, optimized for IOS plan and plan phase optics. |
| Application focus | Living cell culture, microbiology, education, routine diagnostics and general life-science laboratory work. |




