Mantis 5000 Especificaciones descargar pdf (Pagina 12)

Optics

The optics chamber houses the transfer optics of the DRA accessory that direct the

spectrophotometer reference and sample beams to their respective ports on the integrating

sphere. The sample beam is the rear beam in the accessory. Mirrors labelled M1, M2 and

M3 guide the sample beam through the sample transmission port of the integrating sphere

and onto the sample reflectance port at an 8° angle of incidence. Mirrors M4 and M5

direct the reference beam through the reference beam entrance port onto the reference

port.

Figure 11: Mirror M1. Figure 12: Mirror M5.

Mirrors M1 and M5 are fixed mounted mirrors that are adjustable in the vertical and

horizontal planes. Mirror M1, illustrated in the figure above, holds a flat mirror that helps

direct the instrument sample beam into the integrating sphere transmission port. M5 holds

a concave mirror surface that reflects the reference beam into the integrating sphere. The

design of mirror M5, shown in the figure below, is very similar to mirror M1. The fixed

mirrors are mounted to the base plate by two M5 bolts that can be adjusted using a 4 mm

hex wrench. All mirror surfaces are coated with a Al/MgF

thin film.

Mirror M2 is a pivoting mirror assembly that positions a flat mirror surface into the

sample beam path, directing the beam onto the movable mirror, M3. The mirror mount

pivots about a fixed point. To rotate the mirror assembly horizontally, loosen the two

screws shown in the figure and rotate the floor adjustment with a large flathead screw

driver. To adjust the mirror surface vertically, use a 3 mm allen wrench.

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Mantis 5000 Especificaciones Pagina 12