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1. 뱤 ǰ
 

Ÿ ݻ Ư
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Ÿ (Elliptical mirror) ִ , ߻ Beam ݻϿ 2 ϰ ȴ.( ׸ )

Ÿ Ƿ Ͽ Ϻθ ϰ ǹǷ 2 Beam ٽ ߻ϰ ȴ. .( ׸ )

Ÿ ο Mercury short lamp ߻ϹǷ Ÿ ǥ Roughness( ĥ ) ſ ߿ϴ.

ߵ δ Fused silica ϸ ȿ ݻ縦 ؼ ǥ ʼ̴. Beam ݻ簡 ʿϹǷ ǥ Coating ſ ߿ϸ ȿ Beam ȿ ؼ Coating material ߿ ȴ.

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Ÿ ⺻ ݵ ̷
Ÿ ߾Ӻδ Hole ְ Ǵµ ̴ Lamp ߻ϴ ȿ ðϱ ̸ Mercury short lamp ϰ ϱ ̱⵵ ϴ. Lamp ְ ǹǷ Ÿ ߾Ӻη ޵ Ƿ ʿ ȴ.

Elliptical mirror Cold Mirror Hot Mirror (Heat cut off filter) Ͽ UV Lamp ߱ ߻Ǵ ȿ 常 ݻϿ UV Beam ߻ ȿ شȭϰ (ܼ) 뱤鿡 ϵ Ѵ.

ܸ (Plano Convex Lens)

Plano Convex Lens

Front Plano Convex Lens Cold Mirror ݻ UV beam ֻ Ƿ Collimation F.E.L. Ի Ű Ѵ. Front Plano Convex Lens Plano convex lens 캸 ߽ Ͽ ༺ ȣϹǷ F.E.L ԻǴ F.E.L ο ε ҸǴ 絵 ȴ.

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5.3 Fly Eye Lens

F.E.L :

Ի ġ Ⱑ ٸǷ 뱤 ǰ uv ϼ ߻Ѵ. ̷ ұϼ ϰϱ ִ ذؾ ʿ䰡 ִ. Uv uniformity ϱ ϴ ǰ Ŀ  FEL(Fly Eye Lens) ̴.

뱤 F.E.L ϸ 뱤鿡 ϴ ϼ Ų.

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ǰ ݻ Ư
Front Plano Convex Lens Cold Mirror ݻ UV beam ֻ Ƿ Collimation F.E.L. Ի Ű Ѵ.

Lens ǥ鿡 uv ݻ縦 ּȭϱ Ͽ AR (Anti-Reflection) Coating Ѵ.
Coating ¿ ݻ ޶Ƿ ̿ ʿϴ.

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F.E.L ȿ м

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F.E.L ؼ

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F.E.L set Uniformity
Front Plano Convex Lens Collimation beam Uniformity ̰
뱤 ū Beam ȮϿ ϱ Ѵ

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ݻ

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99.jpg Cold mirror ̻ ݻ

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Plano Convex Lens ݻ

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Collimation beam Ư
1. Wavelength ranges of reflected beam
2. Irradiation : Irradiation Uniformity and Intensity
3. Parallelism of Collimated beam : Convergence/Divergence Angle and Declination Angle
4. Inverse Square Law

Collimation beam ༺
• ౤ 뱤 ϴ Ŀ ־ а迡 Ͽ Collimation ( ౤ ) Ǵ Ư¡ ִ.

•౤̶ ̳ ߻ ´ ( 1.5~2.0 ). ̴ Beam F.E.L. Spherical concave mirror ǥ Ÿ ġ ٸ ̸ , ݻ翡 ̴ Beam а Ǵ  ؼ ߻ȴ.

•Photo Mask 뱤 ̼ ϴ Photo Mask Pattern ״ 뱤 ǿ , ̻ Ǹ , ȸ , Collimation angle , Divergence/Convergence  ְ ε巯

• Contact type 뱤 Photo Mask Ϻ ̷ ȸ ְ Ҽ ִ.

׷ ౤ Mirror Ǵ ũ ǥ鿡 ̸ڰ ϸ Ѵ