Optical System & Interferometers

An optical unit consists of various components. You can assemble a different optical unit or change the configuration of the unit according to the purpose of an experiment by purchasing additional components.In addition, we offer variety of components required for optical adjustment and safety control.

Laser Component

He-Ne laser component excellent in coherence and provides linear polarized beam with stable output
Wavelength: 632.8nm, Output: 1mW

Spatial Filter Component

Emits diverging rays of Gaussian distribution without distortion by transmitting a laser beam focused by an objective lens through a pinhole.
To provide clean spherical waves, it can remove wavefront distortion caused by dirt on the objective lens or the like from the laser beam.

Collimator Lens Component

Converts spherical waves emitted from the spatial filter holder to collimated light.
Not fitted with a stage.Focal length: 300mm

Mirror Component

Uses an aluminum total-reflection mirror having high surface accuracy, providing straight interference fringes. The mirror component is fitted with a stage for optical axis adjustment or interference fringe phase shift experiments.

Beamsplitter Component

Utilizes a plate-type dielectric multilayer half mirror that provides lower intensity loss by dividing light into transmitted light and reflected light to 1:1.
The beamsplitter component is fitted with a stage for optical adjustment.

Screen Component

Projects interference fringes on a □200mm white plate.

Imaging Lens Component

An imaging lens for loading interference fringe images into a camera.Fitted with a stage for focus adjustment.

Camera Component

Loads observation images into a PC by simply connecting the 1/2″ 2 million pixel USB camera to a USB port of the PC.
The camera component is fitted with an YX axis stage, allowing adjustment of focus and image position.

Filter Component

An ND filter installed immediately in front of a camera to attenuate the intensity of laser light to 1% because direct irradiation of laser light into the camera causes saturation.

Stray Light Block Component

Reflected light from the reverse side of a half mirror or multiple-reflected light inside an interferometer sometimes spread out of a laboratory bench as stray light. This component safely blocks such optical paths. It can also be used as a filter since an absorptive ND filter is used.

Polarization Filter Component

Used for adjusting the intensity of He-Ne laser. Use this component when changing laser intensity continuously for optical axis adjustment or camera brightness adjustment. When two units are used in a line, it can turn down the intensity close to zero.

Iris Diaphragm Component

Used for clipping a beam into a circle, or cutting out unnecessary light to obtain only necessary light. It is convenient to use the iris diaphragm component as the reference for alignment.

Slit Component

A slit positioned at the focus spot of light transmitted through a sample in Schlieren. Contrast of projected images changes by fine adjustment of slit position or width.

Adjustment Lens Component

Used when correctly overlapping two beams in parallel during interference fringe adjustment.
After superimposing the spots, remove it from the optical path. Focal length: 300mm

White Light Source Component

White light source of halogen lamp used as the light source of Schlieren.
It will not heat the optical system because light is transmitted by the light guide.

Vibration Isolators Benches

Interferometers are highly sensitive and always require vibration isolator benches to eliminate floor vibrations.

Darkroom Kits

When observing interference fringes projected on a screen or Schlieren projection images, the room needs to be dark. In such cases, having a darkroom is convenient. Covering an experiment area is also very effective as a laser safety control.

Special Order

We will produce custom-made optical units according to your request.

These are low outgassing mirror holders which are ideal for using in the high vacuum conditions.
High precision and high stability rotation motorized stages fitted with bearing positioning slide.
* Label content is only available in Japanese.