Light intercepting mask of lens
Light modulator device
Light shield for welding
Light shielding structure of a lens barrel
Light transmitting and dispersing filter having low reflectance
Light transmitting and dispersing filter having low reflectance
Light transmitting and dispersing filter having low reflectance
Light trap
Light trap and associated light focusing assembly
Light trap and heat transfer apparatus and method
Light-absorbing member
Liquid transmissive filter having anisotropic properties and...
Low background flux telescope with integrated baffle
Low-backscatter aperture structure