The Optika B-293LD1 is a trinocular LED fluorescence microscope for laboratories that combine routine brightfield work with fluorescence observation. It uses IOS N-PLAN objectives at 10x, 20x, and 40x plus an IOS W-PLAN 100x dry objective without cover glass, giving 100x to 1000x total magnification. The epi-fluorescence attachment has a 3-position slider with a blue filter set included, covering common fluorochromes such as FITC and GFP. The infinity optical system keeps image quality stable with added optical components, and a trinocular head adds a camera port for documentation alongside visual observation. It suits laboratories that need a single microscope for routine and fluorescence sample review, with a camera option built in.
Optika B-293LD1 Trinocular LED Fluorescence Microscope
The Optika B-293LD1 is a trinocular upright microscope built on the B-290 series infinity-corrected platform, equipped for both brightfield and LED fluorescence observation.
The system supports epi-fluorescence alongside standard transmitted brightfield, with a camera port on the trinocular head for documentation.
IOS N-PLAN / W-PLAN Optics
The B-293LD1 uses IOS N-PLAN objectives at 10x, 20x, and 40x plus an IOS W-PLAN 100x dry objective without cover glass, giving 100x to 1000x total magnification through WF10x/20 eyepieces secured by a screw.
- Quadruple reversed nosepiece on ball bearings
- Anti-fungus treated optics
LED Fluorescence with Blue Filter Set
The epi-fluorescence attachment has a 3-position slider, 2 for fluorescence and 1 for brightfield, with a blue filter set included (excitation 460-490 nm, dichroic 505 nm, emission 515LP nm), supporting fluorochromes such as Acridine Yellow, Acridine Orange, Auramine, DiO, DTAF, FITC, GFP, and YFP.
- LED fluorescence source, 3.6 W, peak wavelength 465 nm, with light intensity control
- Trinocular Siedentopf head, 30 degrees inclined, 360 degrees rotating
Rackless Double-Layer Stage
The double-layer stage moves 75 x 33 mm on a rackless mechanism, with a vernier scale accurate to 0.1 mm on both axes.
- Abbe condenser, N.A. 1.25, objective-coded iris diaphragm, focusable and centerable
X-LED3 Transmitted Illumination
Transmitted light comes from a 3.6 W X-LED3 source with light intensity control and a fixed color temperature of 6300 K.
- External power supply, 100-240 Vac input, 6 Vdc output, multi-plug
Ideal Applications
The B-293LD1 suits laboratories combining routine transmitted-light work with fluorescence sample review.
- Combined brightfield and fluorescence teaching or research labs
- Laboratories with occasional fluorescence needs
- General biology work needing a single, dual-technique microscope
- Training environments introducing fluorescence microscopy
- Documentation of both brightfield and fluorescence images via the trinocular port
Choose the B-293LD1 when:
- You need brightfield and LED fluorescence on the same microscope
- You want the blue filter set included rather than purchased separately
- You need a trinocular head for camera documentation
- You want infinity-corrected optics for future accessory additions
Optika Value Proposition
The Optika B-293LD1 carries the same X-LED3 illumination used across the Optika range, backed by a 10-year warranty on mechanical and optical parts and a lifetime warranty on the X-LED light source.
Technical specifications – B-293LD1
| Specification | B-293LD1 |
|---|---|
| Type | Upright, aluminum die-cast |
| Head | Trinocular, Siedentopf, 30 degree inclination, 360 degree rotating, IPD 55-75 mm, dioptric adjustment on both eyepieces |
| Eyepieces | WF10x/20, field number 20 mm, high eyepoint, secured by screw |
| Nosepiece | Quadruple, reversed, rotation on ball bearings |
| Objectives | IOS N-PLAN 10x/0.25, 20x/0.40, 40x/0.65; IOS W-PLAN 100x/0.80 (no cover, dry), anti-fungus treated |
| Stage | Double layer, rackless, 150×139 mm, moving range 75×33 mm, vernier scale 0.1 mm |
| Condenser | Abbe, N.A. 1.25, objective-coded iris diaphragm, focusable and centerable |
| Focusing | Coaxial coarse and fine, limit stop, adjustable tension |
| Brightfield illumination | X-LED3, 3.6 W, 6300 K, light intensity control |
| Fluorescence illumination | LED, 3.6 W, peak wavelength 465 nm, light intensity control |
| Epi-fluorescence attachment | 3-position slider (2 fluorescence, 1 brightfield), blue filter set included |
| Power supply | External, 100-240 Vac, output 6 Vdc, multi-plug |
Options and Accessories – B-293LD1
The Optika B-293LD1 ships with a fixed set of IOS objectives and a blue filter set. Additional objectives and B-290 series accessories extend magnification and add observation techniques.
- M-145 IOS N-PLAN objective 10x, compatible with B-292LD1, B-292LD1.50, B-293LD1.50, B-293LD1
- M-146 IOS N-PLAN objective 20x, compatible with B-292LD1, B-292LD1.50, B-293LD1.50, B-293LD1
- M-147 IOS N-PLAN objective 40x, compatible with B-292LD1, B-292LD1.50, B-293LD1.50, B-293LD1
- M-698.2 IOS W-PLAN objective 100x (dry), compatible with B-292LD1, B-293LD1
- M-174 polarizing filter set for the B-290 series
- M-184 darkfield stop for the B-290 condenser
- 15104 cleaning kit
