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高通濾光片Andover

Often referred to as long wave pass (LWP) and short wave pass (SWP) filters, these sharp-cut edge filters are distinguished by their high rate of transition between their region of reflection and transmission. This high rate of transition makes them an excellent choice as emission filters in fluorescence applications, and as order sorting filters in photometry. They are also very useful as stray light or trim filters, to eliminate any unwanted near band radiation. All Andover LWP/SWP filters are constructed of hard, durable first-surface dielectric coatings, and will withstand the normal cleaning and handling associated with any high-quality optical component. Their film construction is essentially a modified quarter-wave stack, using interference effects rather than absorption to isolate their spectral bands. Unlike filter glass, which is not sensitive to wavelength shift with angle, these filters will shift shorter in wavelength with an increase in their angle of incidence. This feature can be useful in applications where it may be desirable to fine tune the 50% cut-on, or cut-off wavelength. All standard edge filters are available in 50nm increments from 400nm to 1000nm. Custom edge filters are available and will be quoted upon request.

●Low-cost

●Wide slection of wavelengths

●Provide steeper transistion than color glass filters

General Specifications

Thickness:	4.0mm maximum
Size Tolerance:	+0.0mm/-0.5mm
Min. Clear Aperture:	85% of outside dimension
Substrate Material:	Glass (Note: BK-7 or Borofloat available as an option for higher Tx.)
Flatness:	3-5 waves per 25 TWF
Surface Quality:	80-50 per MIL-C-48497A
Humidity and Abrasion:	Per MIL-C-675A
Operating Temperature:	-50°C to +200°C
Cut-on Slope:	6% maximum (11% for 300nm filter)
Cut-on Tolerance:	±10nm from 400nm-1100nm ±5nm from 300nm - 375nm
Mechanical:	Unmounted

Transmission

Long Wave Pass:

85% average from the 50% cut-on point to 2000nm

Short Wave Pass:

400-450nm: 85% avererage from the 50% cut-on point to 0.75 x the 50% cut-off point

500-1000nm: 85% avererage from the 50% cut-on point to 0.75 x the 50% cut-off point

Note: with the exception of the 400nm filter, all SWP filters will drop off in transmission at wavelengths under 400nm.)

Rejection

Long Wave Pass:	99% or greater from 0.9 x the 50% point to the UV
Short Wave Pass:	99% or greater from 1.07 x the 50% point to 1.25 x the 50% point
Effective index of refraction (n*)	1.7 (approximately)

高通濾光片Andover

DESCRIPTION	PART NO.
300.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	300FH90-12.5
300.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	300FH90-25
300.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	300FH90-50
300.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	300FH90-50S
325.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	325FH90-12.5
325.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	325FH90-25
325.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	325FH90-50
325.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	325FH90-50S
350.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	350FH90-12.5
350.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	350FH90-25
350.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	350FH90-50
350.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	350FH90-50S
375.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	375FH90-12.5
375.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	375FH90-25
375.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	375FH90-50
375.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	375FH90-50S
400.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	400FH90-12.5
400.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	400FH90-25
400.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	400FH90-50
400.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	400FH90-50S
450.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	450FH90-12.5
450.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	450FH90-25
450.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	450FH90-50
450.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	450FH90-50S
500.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	500FH90-12.5
500.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	500FH90-25
500.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	500FH90-50
500.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	500FH90-50S
550.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	550FH90-12.5
550.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	550FH90-25
550.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	550FH90-50
550.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	550FH90-50S
600.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	600FH90-12.5
600.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	600FH90-25
600.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	600FH90-50
600.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	600FH90-50S
650.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	650FH90-12.5
650.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	650FH90-25
650.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	650FH90-50
650.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	650FH90-50S
700.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	700FH90-12.5
700.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	700FH90-25
700.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	700FH90-50
700.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	700FH90-50S
750.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	750FH90-12.5
750.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	750FH90-25
750.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	750FH90-50
750.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	750FH90-50S
800.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	800FH90-12.5
800.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	800FH90-25
800.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	800FH90-50
800.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	800FH90-50S
850.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	850FH90-12.5
850.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	850FH90-25
850.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	850FH90-50
850.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	850FH90-50S
900.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	900FH90-12.5
900.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	900FH90-25
900.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	900FH90-50
900.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	900FH90-50S
950.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	950FH90-12.5
950.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	950FH90-25
950.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	950FH90-50
950.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	950FH90-50S
1000.0nm Cut-on, 12.5 mm dia., unmounted, Long Wave Pass Edge Filter	100FH90-12.5
1000.0nm Cut-on, 25.0 mm dia., unmounted, Long Wave Pass Edge Filter	100FH90-25
1000.0nm Cut-on, 50.0 mm dia., unmounted, Long Wave Pass Edge Filter	100FH90-50
1000.0nm Cut-on, 50.0 x 50.0 mm sq., unmounted, Long Wave Pass Edge Filter	100FH90-50S