Name: 20mm Diameter x -50 FL, VIS-NIR, Inked, Plano-Concave Lens
Brand: TECHSPEC
SKU: 45-921-INK
Price: KRW 82,700

20mm Diameter x -50 FL, VIS-NIR, Inked, Plano-Concave Lens

TECHSPEC VIS-NIR Coated Plano-Concave (PCV) Lenses

재고 #45-921-INK 품절/문의요망 기타 코팅 옵션

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KRW 82,700

수량 1-9
KRW 82,700

수량 10+
KRW 74,300

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Diameter (mm):

20.00 ±0.025

Effective Focal Length EFL (mm):

-50.00

N-BK7

f/#:

2.5

Numerical Aperture NA:

0.20

Coating:

VIS-NIR (400-1000nm)

Type:

Plano-Concave Lens

Wavelength Range (nm):

400 - 1000

Back Focal Length BFL (mm):

-52.31

Bevel:

Protective bevel as needed

Center Thickness CT (mm):

3.50

Center Thickness Tolerance (mm):

±0.10

Centering (arcmin):

Clear Aperture CA (mm):

19.00

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

Edge Thickness ET (mm):

5.21

Focal Length Specification Wavelength (nm):

587.6

Focal Length Tolerance (%):

±1

Radius R₁ (mm):

-25.84

Surface Quality:

40-20

5 J/cm² @ 532nm, 10ns

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Regulatory Compliance

RoHS:

규격준수

Certificate of Conformance:

보기

제품군의 상세 설명

AR 코팅으로 400-1000nm 파장대역에서 각 면마다 1.25%보다 낮은 반사
AR 코팅으로880nm에서 한표면당 0.25%보다 낮은 반사률
0도의 입사각을 위한 디자인
다양한 코팅 옵션: 비코팅, MgF₂, VIS 0°, NIR I, NIR II

평면 오목렌즈는 한쪽은 평면이고 다른 한쪽은 곡선으로 되어 있습니다. 평면 오목렌즈는 음수의 초점거리를 가지고 있으며 이미지 감소와 빛의 퍼짐에 사용됩니다.

기술 정보

N-BK7
	Typical transmission of a 3mm thick, uncoated N-BK7 window across the UV - NIR spectra. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with MgF2 (400-700nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg ≤ 1.75% @ 400 - 700nm (N-BK7) Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with VIS-EXT (350-700nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg≤ 0.5% @ 350 - 700nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with VIS-NIR (400-1000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_abs≤ 0.25% @ 880nm R_avg≤ 1.25% @ 400 - 870nm R_avg≤ 1.25% @ 890 - 1000nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with VIS 0° (425-675nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg≤ 0.4% @ 425 - 675nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with YAG-BBAR (500-1100nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_abs ≤ 0.25% @ 532nm R_abs ≤ 0.25% @ 1064nm R_avg≤ 1.0% @ 500 - 1100nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with NIR I (600 - 1050nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg≤ 0.5% @ 600 - 1050nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with NIR II (750 - 1550nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_abs ≤ 1.5% @ 750 - 800nm R_abs ≤ 1.0% @ 800 - 1550nm R_avg≤ 0.7% @ 750 - 1550nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data