Carl-zeiss-stiftung

Richard Sachse

Meinrad Machler

Harry Schlemmer

Reinhold Bittner

Horst Stacklies

Franz Gluck

Achim Schindler

Sibylle Machler

An unmetallized grating is mounted on an optically transparent body is subjected to radiation which passes through the body and strikes the flanks of the grating grooves at an angle that is larger than the critical angle of the total reflection.

Reflecting diffraction grating

The invention is directed to an arrangement for determining the spectral characteristic of the refractive index of a liquid or a gas wherein the specimen is enclosed between two boundary surfaces spaced apart between 1 and 50 .mu.m. The surfaces are at least approximately parallel to each other. The boundary surfaces cause interferences when illuminated with white light passing through the surfaces. The interferences are measured by a spectrometer in their wavelength-dependent course and are thereafter evaluated.

Arrangement for determining the spectral characteristic of the

For mounting the optical components of optical apparatus in an adjusted manner, the optical components are either adjusted and permanently fixed in or on shaped component bodies having accurately defined dimensions, or are produced on such bodies at an accurate location and with accurate alignment. Then, the shaped component bodies are assembled in a defined manner, so that the optical components assume the precisely correct location relative to one another.

Method of assembling the optical components of an optical apparatus and

The invention is directed to a through-flow cuvette which can be assembled and wherein the cuvette body is made of two cuvette halves. The cuvette halves are placed one atop the other at their planar surfaces. Convex recesses are formed in these planar surfaces and define the inlet and outlet channels as well as the measuring space.

Through-flow cuvette

In an instrument for spectral measurement in the bloodstream, the light-guide probe is developed with a diameter of, at most, 0.5 mm. By plug connections with precisely defined positions of the light guides, the light guide probe is connected to an illuminating device having a xenon lamp and to a diode line spectrometer. The diode line spectrometer has an aperture ratio which includes the aperture of the light guide without trimming or vignetting.

Instrument for spectral measurement in the bloodstream

For the adjustment and mounting of an optical component in an optical instrument, the optical component is held by an adjusting device not forming part of the instrument. After the adjusting process is completed, the component is attached to the instrument by a liquid or pasty substance which solidifies with slight change in volume. The optical component or its mount and the instrument are so developed that a form-locked, force-locked, or adherence-locked attachment is produced between them. The adjusting process can be made objective by a position-resolving receiver; the evaluation of the adjustment image and the carrying out of the adjustment movements can be effected by a computer which can also carry out the entire adjustment process completely automatically. After the firm attachment of the optical component to the instrument, the adjusting device is removed.

Growing community of inventors

Konigsbronn, Germany

Richard Sachse