Exact frequency range for a DPSS 532 nm and a 445 nm lasers.

lazeristasUVISIR said:

This is not a common way to describe lenses for lasers. Most often surfaces radii are dimensioned in mm, and focal length in mm (not dioptic power)

The first lens is confusing too
Plano Convex
but then you write about convex and concave. :thinking:

As both lenses are +, you'll build a Keplerian type expander. Any reasons why? The Galilean type is shorter at least.

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diachi said:

Nothing confusing about Plano Convex, one side is flat, one side is convex. .

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Minamoto Kobayashi said:

Plano Convex Lens:
base curve outer (convex): +9.00 diopters
base curve inner (concave): -1.25 diopters
dioptic power: +10.65
thickness at the center: 4.15 mm
diameter: 30 mm

Convex lens:
base curve outer (convex): +12.35 diopters
base curve inner (concave): -6.5 diopters
dioptic power: +6.75
thickness at the center: 3.3 mm
diameter: 30 mm

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Minamoto Kobayashi said:

Hi,
Infact in my last message i say that there is also a small input lens

Sorry, I do not understand the purpose of Your calculation ... what means? :thinking:

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