FLIR Lepton 1.5, Инженерная спецификация

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FLIR LEPTON® Engineering Datasheet
The information contained herein does not contain technology as defined by the EAR, 15 CFR 772, is publicly available,
and therefore, not subject to EAR. NSR (6/14/2018).
Information on this page is subject to change without notice.
Lepton Engineering Datasheet, Document Number: 500-0659-00-09 Rev: 203
68
6.2 Mechanical Considerations
The socket described in
Socket Information
on page
66
is not intended to retain the Lepton assembly under
high-shock conditions. It is recommended to incorporate front-side retention such as illustrated in
Figure 46
. Note
that a maximum, uniform, load of 1kgF can be applied to the shutter face without causing failures in shutter
actuation. When designing the foam thickness and compression the tolerances have to be such that the
maximum force of 1kgF at the same time as enough force is exerted to keep the Lepton in the socket.
Figure 46 - Recommended Approach to Retaining Lepton in the end Application
The Lepton camera is not a sealed assembly. Consequently, for most applications it is recommended to locate the
assembly behind a sealed protective window. Common materials for LWIR windows include silicon, germanium,
and zinc selenide (LWIR absorption in silicon is on the order of 15%/mm, which means NEDT is adversely affected
using a silicon window. Bulk absorption in germanium and zinc selenide is negligible, and performance is
essentially unchanged provided both surfaces of the window are anti-reflection (AR) coated.) Note that the
window should be sized large enough to avoid encroaching upon the optical keep-out zone (see
Optical
Considerations
, page
69
).