A novel autocollimating method for measuring the focal distances is presented. It may be used for measuring the focal distances of lenses and single optical elements in the visible, infrared and ultraviolet range. The relative uncertainty of this method is about 0.1%. The limited uncertainty is over 0.03%.
A new method for adjusting the lateral transfer hollow retroreflector is presented. It allows in a simple way to adjust the hollow retroreflectors with a lateral shifting. It enables to make the manufacturing process of adjustable lateral hollow retroreflectors easier and cheaper. The testing optical bed of this method is displayed. The evaluation of uncertainties and a limit value for this method are given.
A new method of adjusting an optical axis of the lens of receiving module (RM) of laser rangefinder (LRF) [1] to the
main axis of space vehicle is described. The testing unit for LRF was designed and described [2]. The unit allows to
measure the focal plane position of main lens, RM detectivity, level of nonaxis source of light, transmittance of optical
system and dynamic range of RM and to make the most of adjustings. The uncertainty of adjusting four laser beams to
the main axis of space vehicle consists of uncertainty of adjusting the optical axis of RM to the main axis of space
vehicle, uncertainty of adjusting central fiber of fiber-optic coupler (FOC) RM to the optical axis and uncertainty of
adjusting laser beams of laser transmitter module (LTM) to all of four fibers of FOC RM. The method and uncertainty of
adjusting an optical axis of RM to main axis of space vehicle is determined as ±45 arcsec and described in this paper.
Four beams laser rangefinder with possibility to determinate an angle between the main axis of the space vehicle and the
normal to the plate ground was designed. The testing unit for fixing optical axis and measuring main characteristics of
receiving module is described. The unit allows to measure the focal plane position of main lens, detector chanel
detectivity, level of nonaxis sun scattering light, transmittance of optical system and dynamic range of receiving channel.
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