Abstract: Continuously variable neutral density laser goggles are worn by a user so as to enable the user to align and focus laser beams of specified wavelength. A laser goggles frame has the eye openings adapted to receive filter units therein having three polarized elements, two fixed and one rotatable by an external adjusting lever, that vary in absorbance at the specified wavelength. A connecting rod is connected to each of the adjusting levers so that movement of the connecting rod causes identical movement of the rotatable elements. Additional filter units can be stacked and connected to provide additional absorption when necessary. The user of the goggles firstly maximizes absorption after which the area of concern is observed. The amount of absorption is slowly reduced by moving the connecting rod until the laser radiation is barely visible. Additional filters can be added that eliminate invisible radiation and transmit only visible radiation.

Abstract: The invention is a laser ray eye protection device comprised of a laser detector, voltage controlled lens or lenses, and related interconnecting circuitry. The lenses remain in the normally transparent state until a laser ray is sensed by the detector which energizes the lenses into a state of opacity by the interconnecting circuitry. The invention may take on numerous specific embodiments. Various partial modifications and combinations thereof are described.

Abstract: A flexible goggle has an internal frame ledge with anti-glare textured surface.

Abstract: An independent readily attachable visor member for goggles having a rim portion with slots defined therein on the sides thereof to accept a strap, the visor member being formed of a pliable sheet material and formed into a relatively rigid structure by curving the visor brim portion to provide structural rigidity, positioning end mounting sections formed on the ends of the brim portion to a position substantially normal to that of the brim, such that the end sections may be inserted obliquely through the strap slots defined in the rim, and the visor member rotated to lock the brim portion against the goggle with the end sections securely engaged in the strap slots.

Abstract: A variable density polarizing attachment for shields combined with spectacles having polarizing lenses is provided along with a method of making variable density shields. A polarizing rotary disc is attached to standard shield adding optionally: polarized eye-protection and/or variable density shading with standard polarized lens' spectacles. The rotary disc is mounted on the inside of the shield and adjacent to standard polarizing spectacles' lenses. By rotating the disc the combination converts the sheidl to variable density. The set of snaps utilized to mount the rotary disc is modified to allow some air inside the shield, and/or to gyrate the disc.

Abstract: Instrument flight training glasses including a voltage-controlled, liquid crystal viewing lens system operable to a first state of transparency when wearer is viewing the instrument control panel of his aircraft and operable to a second state of opacity to instantaneously occlude viewing when wearer changes his line of vision outside of the aircraft. A lens position sensing system monitors the relative position of the lens system with respect to the aircraft windshield for lens state actuation responsive to a lens position permitting the wearer to view through the windshield along his greatest, upper peripheral line of sight. A manual switching arrangement permits maintenance of lens transparency to provide vertigo simulation capabilities upon flight landing approach whereby wearer changing his line of sight outside of the aircraft to occlude his viewing, and thereafter manually switching the lens to its transparent state enters a condition of vertigo.

Abstract: Instrument flight training glasses including a voltage controlled, liquid crystal lens system having upper and lower contiguous lens systems independently operable with respect to each other, for limiting a pilot's vision to the instrument control panel of his aircraft when so desired. The lens systems are opacity variable for simulating flight through particular weather and cloud conditions while providing instant clearing of the lower lens system as the pilot views the aircraft control panel. During a landing approach an interlock system is manually actuable to prevent opaque obscuring of the lens system.