Night Vision Goggle Assessment Techniques with Incompatible Cockpit Lighting and a Modified Class B Goggle
Author: Randall William Gibb
Publisher:
Published: 1996
Total Pages: 0
ISBN-13:
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An Investigation of Cockpit Lighting for Compatibility with Use of Night-Vision Goggles, AN/PVS-5
Author: Harry R. Stowell
Publisher:
Published: 1976
Total Pages: 22
ISBN-13:
DOWNLOAD EBOOKCockpit lighting in U.S. Army helicopters was investigated for compatibility with use of night-vision goggles, AN/PVS-5. Instrument-lighting systems in existing Army helicopters, e.g., eyebrow lighting, post lighting, are not suitable for use with night-vision goggles. A comparatively simple flood- lighting system can provide suitable lighting in the cockpit of existing helicopters for reading instruments with night-vision goggles. The most suitable instrument-lighting system for use with the goggles is integral instrument lighting; however, indicator lights need to be modified so they are compatible with the goggles. Methods were investigated for instantaneously refocusing the goggles inside the cockpit. Luminance levels compatible for use with night- vision goggles are stated in photometric terms.
Procedures for Conducting a Field Evaluation of Night Vision Goggle Compatible Cockpit Lighting
Author: Jack D. Reising
Publisher:
Published: 1996
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOK"The requirements to assess the compatibility of aircraft cockpit lighting with night vision goggles (NVGs) are defined in MIL-L-85762A. Lighting, Aircraft, Interior. Nifiht Vision Imaging System (NVIS) Compatible. However, the procedures specified to evaluate cockpit lighting are primarily specific to the laboratory environment, with only a few assessments specific to the field environment. This report describes the procedures used by Armstrong Laboratory's Aircrew Training Research Division (AL/HRA) to conduct a field evaluation of aircraft cockpit lighting. The evaluation procedures are divided into Planning, Evaluation Preparation, Assessment Procedures, and Reporting Results. This report can also be used as a guideline for other organizations that need to conduct NVG-compatible cockpit lighting evaluations."--Page ii
Night Vision Goggle Assessment Techniques with Incompatible Cockpit Lighting and a Modified Class B Goggle
Author: Randall William Gibb
Publisher:
Published: 1996
Total Pages: 158
ISBN-13:
DOWNLOAD EBOOKProcedures for Conducting a Field Evaluation of Night Vision Goggle Compatible Cockpit Lighting
Author: Jack D. Reising
Publisher:
Published: 1996
Total Pages: 19
ISBN-13:
DOWNLOAD EBOOK"The requirements to assess the compatibility of aircraft cockpit lighting with night vision goggles (NVGs) are defined in MIL-L-85762A. Lighting, Aircraft, Interior. Nifiht Vision Imaging System (NVIS) Compatible. However, the procedures specified to evaluate cockpit lighting are primarily specific to the laboratory environment, with only a few assessments specific to the field environment. This report describes the procedures used by Armstrong Laboratory's Aircrew Training Research Division (AL/HRA) to conduct a field evaluation of aircraft cockpit lighting. The evaluation procedures are divided into Planning, Evaluation Preparation, Assessment Procedures, and Reporting Results. This report can also be used as a guideline for other organizations that need to conduct NVG-compatible cockpit lighting evaluations."--p. [ii].
Integration of a Legacy System with Night Vision Training System (NVTS).
Author:
Publisher:
Published: 2002
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKThe increase in tactical night operations resulted in the requirement for improved night vision goggle (NVG) training and simulation. The Night Vision Training System (NVTS), developed at the Air Force Research Laboratory's Warfighter Training Research Division (AFRL/HEA), provides high-fidelity NVG imagery required to support effective NVG training and mission rehearsal. Acquisition of a multichannel NVTS, to drive both an out-the-window (OTW) view and a helmet-mounted display (HMD), may exceed resources of some training units. An alternative could be to add one channel of NVG imagery to the existing OTW imagery provided by the legacy system. This evaluation addressed engineering and training issues associated with integrating a single NVTS HMD channel with an existing legacy system. Pilots rated the degree of disparity between the HMD and OTW scenes for various scene attributes and effect on flight performance. Findings demonstrated the potential for integration of an NVTS channel with an existing legacy system. Latency and terrain elevation differences between the two databases were measured and did not significantly impact system integration or pilot ratings. When integrating other legacy systems with NVTS, significant disparities may exist between the two databases. Pilot ratings and comments indicate that (a) display brightness and contrast levels of the OTW scene should be set to correspond to real-world, (b) unaided luminance values for a given illumination condition; disparity in moon phase and position between the two sky models should be minimized; and (c) star quantity and brightness in the OTW scene and the NVG scene, as rendered on the HMD, should be as consistent with real-world conditions as possible.
Methods of Visual Scanning with Night Vision Goggles
Author:
Publisher:
Published: 1992
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKThis report describes recommended methods for scanning the flight path and cockpit instruments for pilots wearing night vision goggles (NVGs) while flying Army helicopters. The impetus for this report was a task force sponsored by the Office of the Deputy Chief of Staff of the Army for Plans and Operations, which determined that the development of scanning methods was the Army's top training priority for night helicopter operations. The recommended methods of scanning were derived from published scientific works, interviews with scientists, and interviews with aviators from field tactical units, training units, and from the research and development community. The proposed scanning methods recommend free search as opposed to formalized scan patterns. In addition, they place equal weight on crew coordination and individual technique. The proposed methods stress actions taken before flight, such as premission planning and NVG preflight adjustments. Furthermore, the proposed methods are intended to build an awareness of: NVG performance limits, and how to maximize performance; common problems encountered while scanning with NVGs, and the conditions which elicit them; and the scientific basis for scanning. Separate scanning methods were developed for individuals and for crews. In addition, the relevant scientific literature was reviewed. Night vision goggles, Scanning, Free search, Formalized scan patterns, Crew coordination.
Integrated Panoramic Night Vision Goggle
Author:
Publisher:
Published: 1999
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKIn July of 1999 the Air Force Research Laboratory (AFRL) took delivery of the last of twelve panoramic night vision goggle (PNVG) systems. Data on these systems has been collected onboard a variety of aircraft including the F-15C, F-15E, F-16, A-10, F-117, C-17, C-5, C-130, and HH-60 aircraft. Data will continue to be collected on these aircraft as well as other platforms over the next 12 months In April of 2000 a follow-on development effort was initiated entitled 'Integrated Panoramic Night Vision Goggle' (I-PNVG). Lessons learned from the PNVG effort are being incorporated into the I-PNVG program wherever possible. Specific objectives to be addressed under I-PNVG effort are wide field-of-view, integrated laser protection, fit/comfort, image quality, integrated symbology/imagery display, field support, ejection/crash/ground egress safety, compatibility with existing systems, affordability, supportability, maintainability, producibility, and reliability. This paper will briefly discuss pilot comments about the PNVG, provide further detail of the I-PNVG objectives, and address I-PNVG design considerations.
Simulating Night Vision Goggle Effects in a Virtual Environment
Author: Robert J. Pleban
Publisher:
Published: 2002
Total Pages: 64
ISBN-13:
DOWNLOAD EBOOK"This research examined the capabilities of virtual environments to simulate night vision goggle (NVG) effects. Different solutions for simulating NVG images were assessed. Two conditions simulated NVGs but used different software approaches. Two additional conditions simulated unaided night environments that required soldiers to wear NVGs. Four-man infantry teams conducted urban operation missions under each condition. Objective assessments were obtained on the number of events correctly detected and the average time required to detect an event. Subjective assessments of task difficulty and image fidelity were also made. No significant differences were found across night conditions for either event detection or time. Significant differences in task difficulty ratings occurred for movement, visual detection, and maintaining situation awareness. In general, tasks were more difficult to perform while wearing the NVGs compared to simulated versions of NVG images. Soldiers also ranked the conditions involving actual NVGs as more realistic. The unique contribution of virtual environments for night operations training may be at the entry level. However, specific image fidelity issues associated with the use of NVGs in simulated unaided night environments must be addressed if this approach is to be used as an effective training medium."--Stinet.
Night Lighting and Night Vision Goggle Compatibility
Author: Alan R. Pinkus
Publisher:
Published: 1988
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOKProper lighting of aircraft instruments, panels, controls, indicators, and displays is essential in high performance aircraft. The lighting must be useable over a large range of ambient conditions; especially during dawn or dusk transitions and at night. It must be uniform, have low glare, and be continuously dimmable to very low luminance levels, so the pilot can become partially dark adapted for good, out-of-the-cockpit vision. Various aspects of cockpit lighting such as intensity levels, contrast, luminance and color uniformity, red versus white versus blue-green general lighting requirements will be noted throughout the paper because they are an important part of the overall design of the lighting system. A special area or interest is night vision goggles (NVGs) are being viewed. Methods of achieving night vision goggle compatibility in the cockpit using filtered incandescent lamps, external bezels, floodlighting, light-emitting diodes, electroluminescent lamps, microlouver material, and black flight suits are described.
