Retractable lens and slidable lens retracting device thereof
Retrofit line of sight stabilization apparatus and method
Revolver control device
Revolving optical eyepiece and the adjusting method thereof
Rod integrator holder and projection type image display...
Rotary beamsplitter prism mount
Rotatable camera module
Rotatable cylindrical elements for optical alignment
Rotatable lens set
Rotating mechanism
Rotational torque setting apparatus for screw mechanism
Scope with push-in windage/elevation reset
Screw - thread arrangement
Screw actuated night vision goggle tilt mechanism
Sealed focusing assembly for an industrial vision system
Sealing device and sealing device of camera
Securing device for light interception frame
Segmented fresnel lens frame
Self-viewing device for eyes
Semiconductor micro epi-optical components