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HMD CRT Assembly

Technical Information

Catalogue No: C1542
Category: Head-Mounted Equipment [HMD/NVG/Glasses]
Object Type: Module/Sub-Assembly/Component
Object Name: HMD CRT Assembly
Part No: M0220R-S6
Serial No: OMB91300
Manufacturer: Brimar
Division: Unknown
Year of Manufacture: 2000
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Cupboard 4 (CRTs) [Main Store]

Brimar Limited
Viewed as the finest i the World
Cathode Ray Tube
Made in England
Type No. xM0220R-S6
Serial No. 0MB91300
Date Code 0048 L
NSCM U3008
(LEFT EYE) K0662
3887/59157 Iss. AB
NSN 506-99-123-1235
Spec SPE-J-950-B-0221


This is the right-hand Cathode Ray Tube (CRT) Assembly for a binocular Helmet Mounted Display (HMD). A CRT Assembly comprises the CRT, its deflection coil, its magnetically shielding housing and its fully connectorised connection leads.
This particular CRT Assembly design uses a fibre optic faceplate to tilt the image plane of the its screen. The tilt alows the CRT and its optical relay chain to bend between the curves of the helmet shell and the skull of the helmet wearer.
The nature of the design requires that this type of CRT Assembly is produced in left-haded and right-handed versions. The HMD's binocular optical paths cross, such that the left eye views the image from the right-hand CRT and vice versa.
History and application unknown.

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