100° Endoscope Objective Lens

Disposable Use

Sensor matched:
1/9”

Field of View:
Vertical 54°
Horizontal 74°
Diagonal 100°

F/No.:
6.0±5%

CRA:
<31°

Structure:
3 elements (2P+1 IRF)

E.F.L:
1.07

B.F.L:
1.431mm

Max Image Circle:
Φ2.1mm

In an endoscope used for medical treatment, a sleek design of the insertion tube section of the endoscope and a reduction in length of a rigid portion at the distal end of the insertion tube section are demanded in order to improve its operation property. It is thus indispensable that the objective lens used in the endoscope is constructed so that aberration is completely corrected in practical use, a lens contour is small, and the entire length is reduced.

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Related Resource for reference

             
Image Information in a Rigid Rod Lens Endoscope
Relay lens system: for image transport, also called as Image Reversal System (Rod Lens, Achromatic Doublets, GRIN Relay)
Click to Download the full article ENDOSCOPE IN NEUROSURGERY
Article source link: http://www.aiimsnets.org/review_seminar.asp

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