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79 (0,073s)

Result

The Technology of Manufacture of a Positive Lens of Achromatic Dublet

This paper deals with manufacturing of a positive lens of achromatic dublet. Diameter of the dublet is 158 mm and its focal length about 2500 mm. The glass material of the former lens was inhomogeneous and the dublet

Optics (including laser optics and quantum optics)

  • 2020
  • D
Result

The Repair of an Objective Lens 160/2500 of the Observatory in Turnov

This paper brings the information about repair of the achromatic objective lens of diameter 160mm and focal length 2500mm produced by the Development Optical Workshop of the ČSAV in Turnov. The refractor with this dublet has become ...

Optics (including laser optics and quantum optics)

  • 2018
  • D
Result

A Glued Objective Lens of the Steinheil Type

This paper analyses the achromatic dublets with an entrance lens of the flint glass. The objective lens of this construction were devised by German physician Carl August Steinheil in the half of the 19 th century. Several pieces of ...

Optics (including laser optics and quantum optics)

  • 2018
  • D
Result

The Spherochromatic Aberration of the Clarks Objective Lens of the Ondřejov Observatory

In our paper the results of mathematical simulations of the residual aberrations of Clarks 8 inch (diameter 203.2 mm) objective lens are presented. This achromatic dublet has been used at the Ondřejov Observatory for more than 100 y...

BH - Optika, masery a lasery

  • 2016
  • D
Result

Residual Aberrations of the Gajdušek Objective Lens of Diameter 200 mm and Focal Length 3480 mm of the Observatory in Hradec Králové

The achromatic dublet of diameter 200 mm and focal length 3480 mm was manufactured by Professor ing. Vilém Gajdušek in Ostrava in 1954. The telescope with this objective is placed at the Observatory and planetarium in Hradec Králové...

Optics (including laser optics and quantum optics)

  • 2020
  • D
Result

The Residual Optical Aberrations of the Merz Objective Lens 108/1620 mm

During the cleaning and adjustment of the Merz lens with a diameter of 108 mm and a focal length of 1620 mm, we had the opportunity to measure its optical parameters. From the measured values we made a calculation of residual optical defects of this ...

Optics (including laser optics and quantum optics)

  • 2019
  • D
Result

The simulation of the residual optical aberrations of the 8'' Clark objective of the Astronomical Observatory in Ondřejov

The Clark 8 objective lens of the Astronomical Institute of the Czech Academy of Sciences is probably the oldest dublet used for a professional astronomical observation in the Czech Republic. Its optical imaging performances have became lege...

BH - Optika, masery a lasery

  • 2016
  • Jx
Result

The simulation of residual optical aberrations of the 8-inch Clark objective of the astronomical observatory in Ondřejov

The Clark 8 objective lens of the Astronomical Institute of the Czech Academy of Sciences is probably the oldest dublet used for professional astronomical observation in the Czech Republic. Its optical imaging performances have became legend...

BH - Optika, masery a lasery

  • 2016
  • D
  • Link
Result

The Simulation of Residual Optical Aberrations of the Objective Lens of Merz 124/1477

This objective lens was renoved in the Institute of Plasma Physics, v.v Center Toptec in Turnov. During the process we got a possibility to measure the objective lens on the optical bench and to evaluate its residual optical aberrations. The objectiv...

Optics (including laser optics and quantum optics)

  • 2017
  • D
Result

Chromatic Aberration of Several Important Refractors of the 19th and 20th Century

time. The papercontains parameters of the dublet of König telescope of Pragues...

BH - Optika, masery a lasery

  • 2013
  • D
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