Abstract: A rotary stand (11) having a half-mirror (8) and a photodetector (10) mounted thereon, is continuously rotated around a first rotary shaft (A) passing through a sample (S), and set to a predetermined scattering angle. Simultaneously, a rotary reflecting mirror (7) is rotated at a predetermined angle to direct a reference li8ght (LR) to the half-mirror (8) at all times. The half-mirror (8) is also rotated at its own axis at a predetermined angle so that the direction of a scattering light (LS) at the light emitting side of the half-mirror (8) is identical with the direction of the reference lilght (LR). Accordingly, the reference light may be composed with the scattered light at an arbitrary scattering angle, enabling observation of the Doppler shift in the scattered light direction (FIG. 1).

Abstract: A refrigerant compressor for automobile air-conditioning system is disclosed. The compressor comprises a front end plate member and a cylindrical casing attached to an end surface of the front end plate member. A polygonal shaped portion is formed on the outer peripheral surface of the front end plate member and a plurality of projections are formed on an opposite end of the housing from the polygonal shaped portion. The end surfaces of the projections are aligned on the same plane with each end surface of polygonal shaped portion. The end surfaces of the projections and the polygonal shaped portion have tapped holes for attaching mounting brackets. Therefore, a variety of suitable mounting arrangements can be used to mount the compressor and the mounting angle of the compressor can be adjusted.