Endoscope Micro Lenses

Type: Plano-Convex  Plano-Concave  Meniscus lens
Type: Bi-Convex          Bi-Concave        Achromatic Lens

Material:
N-BK7, UVFS, H-K9L or on request

Type:
plano-convex,
plano-concave,
Bi-Convex,
Bi-concave,
Achromatic lens
Meniscus lens

Flatness:
N<3, △N<0.5 for spherical surface
λ/4~λ/8 for flat surface

Diameter:
Ø 0.3mm~up

Surface Quality:
20/10~60/40

Centering:
3’~5’

Coating:
uncoated, or customized

The micro lenses applying in the field for medical endoscope, available with:
plano-convex, plano-concave, Bi-Convex, Bi-concave, Achromatic lens, Meniscus lens
Plano-Convex
Plano-Concave
Bi-Convex
Bi-Concave
Meniscus lens
Achromatic lens
Achromatic Lenses for Rigid Endoscopes
Achromatic Lenses are used to minimize and eliminate chromatic aberration. The achromatic design also helps in minimizing spherical aberrations. Achromats are often designed by cementing two elements together.

wdt_ID Attribute Value
1 Material N-BK7, UVFS, H-K9L or on request
39 Diameter Ø 0.3mm~up
40 Shape plano-convex,
plano-concave,
Bi-Convex,
Bi-concave,
Achromatic lens
41 Flatness N<3, ΔN<0.5 for spherical surface
λ/4~λ/8 on flat face
43 Surface Quality 20/10~60/40
44 Centering 3’~5’
45 Coating uncoated, or on request

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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