Optika B-290TB Digital Brightfield Microscope for Shared Laboratory and Classroom Observation

The Optika B-290TB is a digital binocular microscope built on the B-290 series brightfield platform. It replaces the standard eyepiece with a 10.1 inch Windows tablet and a built-in 5.1 MP camera, so the specimen image is visible on screen as well as through the eyepieces.

The system is used in secondary schools, higher education laboratories, and routine biology or histology settings where a shared, on-screen view speeds up teaching, grading, or peer review.

Built-In Digital Imaging Unit

The B-290TB integrates a 5.1 MP CMOS camera directly into the microscope head, connected to a 10.1 inch IPS multi-touch tablet running Windows 11 on an Intel Core M3-8100Y processor with 12 GB of RAM and 256 GB of storage.

• Camera and tablet share a single power connection for long sessions
• Wireless network support (802.11a/b/g/n/ac) for transferring images
• USB 3.0 Type-C, micro HDMI, and headphone outputs on the tablet

Detachable, Rotating Tablet for Group Discussion

The tablet detaches from the microscope stand and rotates 360 degrees, so it functions as a standalone screen for open discussion or as a laptop-style device with the included keyboard.

• 360 degree rotating and tilting mount
• Lithium-ion battery rated at 3,400 mAh for standalone use

N-PLAN Optics on a Rackless Stage

The B-290TB uses N-PLAN objectives at 4x, 10x, 40x, and 100x oil, giving 40x to 1000x total magnification through the 10x eyepieces. The rackless, double-layer stage moves 75 x 33 mm on a belt-driven mechanism instead of an exposed rack.

• Quadruple reversed nosepiece on ball bearings
• Abbe condenser, N.A. 1.25, centerable

X-LED3 Illumination

Illumination comes from a 3.6 W X-LED3 source with manual brightness control and a fixed color temperature of 6,300 K, rated at more than 65,000 hours of lifetime.

• Low 6 W maximum power draw for the illumination system
• External power supply, 100-240 Vac input, multi-plug EU/UK/US

Ideal Applications

The B-290TB suits settings that benefit from a shared, on-screen view of the specimen rather than single-user eyepiece observation.

• Secondary school and university biology teaching
• Histology and routine tissue sample review
• Group discussion and grading of prepared slides
• Training environments where several people review the same image

Choose the B-290TB when:

• You want a built-in camera and tablet instead of a separate eyepiece camera
• You need a detachable screen for group discussion or standalone review
• Your work is limited to brightfield, with optional darkfield or polarized upgrades
• You want the N-PLAN optics and rackless stage of the wider B-290 series

Optika Value Proposition

Optika has manufactured educational and laboratory microscopes for more than 45 years and sells through dealers in more than 150 countries. The B-290TB carries the 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.