Product Information
Product Information

PRISMVUE NF3

The PRISMVUE loupes are prismatic loupes incorporating PENTAX's unique deflection prisms and offer the surgeon with bright magnified view of the operation field while maintaining upright posture and facing forward.
It prevents the user from needing to hunching their neck and back forward.

Features of PRISMVUE NF2

Unique Optical Design
PENTAX's unique deflection prisms allow the surgeon to magnify the operation field while standing upright and facing forward.
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Bright and wide field of view
PENTAX's unique and sophisticated design provides a bright and wide field of view.
The upright posture facing forward during operation prevents the user's head from interfering with the surgical lights and ensures a bright field of view at all times.
Field width: The field of view is larger by 20 to 30% than
that obtained with conventional products.
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Reducing eye fatigue and cervical strain

The convergence (*Note) provided by the optical system allows stress-free parallel viewing at all times.
This reduces the eye fatigue and cervical strain.
*Note: Convergence is the eyes' turning inward towards the nose when we view objects with both eyes.

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Easy shifting between magnified and actual-size views

Our loupes allows the user to switch easily between magnified and actual size view by just moving the head and only from the movement of the eyes. This allows stabilization of the magnified viewing position.
*High-refractive-index aspherical lenses are incorporated in eyeglasses for Type L.

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Adjustments and Other Features
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Specifications

  NF2
  Type T (without eyeglass lenses) Type L (with eyeglass lenses)
Type Picture Picture
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  NF2
Series Type L (with eyeglass lenses) and Type T (without eyeglass lenses)
High-end Bright model:
S-series
High-end Ultra-light model:
C-series
High-end Light model:
N-series
Power 2.0x 2.5x 3.0x 3.0x 3.5x 4.0x 5.0x
Lens Configuration
3 Objective lenses
3 Ocular lenses
Total 6
2 Objective lenses
3 Ocular lenses
Total 5
2 Objective lenses
3 Ocular lenses
Total 5
Exit Pupil Diameter 6.4mm 4.9mm 4.6mm 4.3mm 4.2mm
Weight※ 106g 107g 116g 92g 94g 98g 117g
Working Distance
(WD)
Custom Made (35cm-70cm)
Eyeglass Lenses High refractive index 1.67 (aspheric) (Type L only)
※Weight may vary depending on the degrees of the eyeglass lenses.
(Weight of the straps are excluded)
  NF2
Frame Nylon
Available Frame Colors R:Red B:Blue K:Black S:Silver
写真

Generic Name: Loupes Binocular
Brand Name: PENTAX PRISMVUE NF2

References

  • Phyo Kim M.D.,Ph.D. , Masao Joujiki,B.S.,Masao Suzuki,B.S.,Keisuke Ueki,M.D.,Ph.D.,Yoshiaki Amano,M.S. , Newly Designed Ergonomic Surgical Binocular Telescope with Angulated Optic Axis . Operative Neurosurgery, Volume 63, Issue suppl_1, 1 July 2008, Pages ONS188–ONS191 Doi.org/10.1227/01.NEU.0000313110.41661.91

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