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OPTITEST
Instruments

Telescopes

Telescopes

Infinity Setting

TYPE CODE Focal length
(mm)
Tube diameter
(mm)
Free Aperture
(mm)
Field of View Resolution for reticle line width 10m
TEL 100-38
TEL 100-38R
3-100-021
3-100-031
100 38.1 30 6 20 arcsec
TEL 150-38
TEL 150-38R
3-100-022
3-100-032
150 38.1 30 4 14 arcsec
TEL 200-38
TEL 200-38R
3-100-023
3-100-033
200 38.1 30 3 10 arcsec
TEL 300-38
TEL 300-38R
3-100-024
3-100-034
300 38.1 30 2 7 arcsec
TEL 300-57
TEL 300-57R
3-100-025
3-100-035
300 57 50 1.2 7 arcsec
TEL 500-57
TEL 500-57R
3-100-026
3-100-036
500 57 50 1.2 4 arcsec
TEL 1000-115
TEL 1000-115R
3-100-028
3-100-038
1000 115 100 0.6 2 arcsec


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Focusing Telescopes

Finite Distance Setting

TYPE CODE Focal length
(mm)
Tube diameter
(mm)
Free Aperture
(mm)
Field of View Focusing
range
Resolution n for reticle line width 10um
TEL F300-3825
TEL F300-3825R
3-101-024
3-101-034
300 38.1 30 2 to 3.6m 20 arcsec
TEL F300-5725
TEL F300-5725R
3-101-025
3-101-035
300 57 50 2 to 3.6m 14 arcsec
TEL F500-5750
TEL F500-5750R
3-101-026
3-101-036
500 57 50 1.2 to 5m 10 arcsec
TEL F1000-11550
TEL F1000-11550R
3-101-028
3-101-038
1000 115 100 0.6 to 20m 7 arcsec

Delivery Kit

The Telescopes designated by the code mentioned in the table are delivered as complete -ready to work- instruments:

  • Tube mounted objective lens
  • Reticle adapter incl. reticle
  • standard eyepiece, magnification 16x

Optional Items

  • Eyepieces with magnification 10x, 12x and 25x
  • Holders
  • Eyepiece micrometers
  • Additional achromats in mount fitting on the objective lens tube
  • CCD-camera attachement

Ordering Information

To order a telescope please specify:

[ Ordering Information ]


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Diopter Telescopes

Operating Principle and Applications

[ Dioptometers ]

The Diopter Telescope or Dioptometer is a focusing telescope measuring the power of lenses in diopters. The results of the measurement can be read off on a graduated scale.

The Diopter Telescopes have wide applications in the field of optical testing. Most important applications include:

  • Testing diopter graduation, focusing range and infinity ("zero") setting of eyepieces
  • Measurement of power of lenses
  • Testing the astigmatism of telescopes
  • Measuring the field curvature of lenses

Product Range and Specification

The supporting flange of TRIOPTICS Dioptometers is hexagonal (48 mm wide) and removable. After removing the flange, the connection thread M 38x1 mm can be used to attach the Dioptometer to custom holders or other devices. [ Diagram ]

 

TYPE CODE Focal length
(mm)
Field of View Height H
(mm)
Measuring
range
(Diopter)
Graduation
(Diopter)
DPT -5/+5 3-100-295 -/- -/- 75-92 -5 to +5 0.2
DPT -3/+1 3-100-296 40 13 82-90 -3 to +1 0.1
DPT -1/+3 3-100-297 -/- -/- 77-83 +3 to -1 0.1
DPT -5/+5 3-100-298 -/- -/- 75-92 -5 to +5 0.1


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Dynameter

The Dynameter is used in optical testing for:

  • Measurement of the diameter of exit pupil of optical instruments
  • Checking the distance between eyepiece and exit pupil
  • Measurement of magnification of telescopes
TYPE CODE Magnification Distance
range
Diameter
range
Reticle
DYN 90 3-100-291 12 x 90 mm, div.
0.5 mm
10 mm 10 mm with div. 0.1 mm


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