optical for narrow of beam

• Apr 21, 2012

• #1

juanma666

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Hello.

These are my modules 532nm/50mW and 635nm/200mW.

I want to know if I can to narrow of beam of the 635nm/200mW with some lens type or similar.


Best Regards.
Juanma.

 

• Apr 21, 2012

• #2

Blord

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The G2/G1 lens can give you narrower beam because of the shorter focal distance. The lens sits closer to the diode and therefore make a narrower beam.

 

• Apr 21, 2012

• #3

RA_pierce

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Blord said:

The G2/G1 lens can give you narrower beam because of the shorter focal distance. The lens sits closer to the diode and therefore make a narrower beam.

Click to expand...

Only near the aperture.
The divergence angle will increase.

 

• Apr 21, 2012

• #4

Blord

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RA_pierce said:

Only near the aperture.
The divergence angle will increase.

Click to expand...

True but at room like distances the beam is narrower. I don't know what distance the break-even point is.

 

• Apr 21, 2012

• #5

juanma666

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Hello.
The room has about 8 meters long and I want to put a mirror to reflect the beam; so they are 16 meters in total.

Where I can buy optic G1/G2?
What do you differ there are among them?

Best regards.

Juanma.

 

Last edited: Apr 21, 2012