MICROSCOPE MAKER

Build your own view.

Place a lens. Follow the light. Make an image.

An open optical bench. Two specimens. More than one good design.
An ideal light microscope · model & sources ↓

Opening the optical bench… The explanation below remains available.

WHY THESE PARTS?

One point on the specimen.
One place in the image.

The objective collects transmitted light. In this infinity-corrected design, the tube lens forms the image at the camera. Focus brings the specimen and sensor into the correct relationship.

The sensor samples that image into pixels. A larger picture can still contain no new detail. Your design has to balance the specimen area, optical detail and camera sampling.

  1. Illuminate. The LED and condenser provide the model’s uniform illumination.
  2. Collect and form. The objective and tube lens set the imaging geometry.
  3. Sample. The camera records a finite number of detector pixels.
  4. Compare. Change one choice and use the same specimen to explain the consequence.
What is calculated · model limits & sources

A design experiment, with stated limits.

This is an ideal transmitted-light camera microscope using a compatible family of infinity-corrected optics. The nominal objective labels assume a 200 mm tube lens. Changing the tube lens changes actual magnification. No eyepiece is required for this camera path.

The paraxial lens model calculates focus, inversion and field size. A Gaussian intensity-blur approximation represents diffraction and geometrical defocus; pixel-area integration happens before camera sampling. This is not a full partially coherent brightfield calculation, an aberration model, or a prediction for arbitrary commercial optics. The two specimens are constructed absorption patterns, not acquired biological evidence. The 3D assembly and light guide illustrate connectivity; their displayed dimensions are not the numerical optical distances.

Brightness is normalized relative transmission at 550 nm, multiplied by the relative exposure. Absolute illumination throughput, detector noise, colour response, saturation capacity in electrons and specimen dose are not modelled. Pixels can clip at the display maximum. No automatic contrast adjustment is applied.

Without a condenser the assumed uniform illumination model is unavailable; that does not mean a real specimen would receive no light. Without the objective or tube lens, the selected microscope image model is unavailable; this does not calculate every possible shadow or alternative optical configuration.

Calibration features have fixed dimensions: the grid spacing is 25 µm, and the two central bars are 0.6 µm wide with 2 µm centre-to-centre spacing. The image is inverted. The displayed scale bar changes with actual field size. Enlarging a view scales the same native detector pixels. Saved views contain the full settings and do not claim measured data.

These open separate experiences. Prepared specimens are not imported into this builder.

The same detector pixels, enlarged.

Ideal specimen map · upright

Constructed transmission before optics; not a camera image.

Camera image · inverted

Native detector samples, enlarged.

Begin a new build?

The starter illumination and specimen stage will return. Your saved comparisons will stay in the notebook.

Share this design

This link includes the parts, specimen and optical settings. It does not include your notebook or predictions.