Inventor

CHANG BYUNG J

US41 patents

⚠️ This page may combine multiple inventors who share the name “CHANG BYUNG J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHANG BYUNG J

GEN SCIENTIFIC CORP

Through-the-lens loupes with improved declination angle

Pair of through-the-lens medical/dental loupes

Through-the-lens medical/dental loupes

LED illuminator with improved beam quality

Clip-on head-mounted LED light for medical and dental professionals

Through-the-lens medical/dental loupes

Through-the-lens medical/dental loupes

Spectacle frame for telemicroscopes and the like

Spectacle frames

Belt-worn control unit for LED headlight

High-efficiency LED illuminator with improved beam quality

GENERAL SCIENT CORP

Head-mounted illuminator with capacitive proximity control

Through-the-lens (TTL) loupes with improved declination angle

High-efficiency LED illuminator with improved beam quality and ventilated housing

Removable, adjustable wire arms for nose pads

Multifunctional mounting assembly for wrap-around eyeglass frames

Head-mounted medical/dental accessories with voice-controlled operation

Wrap-around eyeglass frames with bridge mounting structure

Pair of removable, adjustable wire arms for nose pads

Pair of removable, adjustable wire arms for nose pads

Pair of removable, adjustable wire arms for nose pads

CHANG BYUNG J

Through-the-lens loupe assembly with interpupillary distance adjustment

LED illuminator with improved beam quality

Head-worn illuminators and magnifiers with optical rejection coatings to assist medical and dental professionals

Head-mountable LED illuminator

Mechanically stabilized optical mounting assembly

Medical/dental headlight system with interchangeable beam-forming optics

KAISER OPTICAL SYSTEMS

Detection system for Raman scattering employing holographic diffraction

Laser protection window using holographic optical element and channel plates

Method for forming holographic optical elements free of secondary fringes

Two beam method for forming holographic optical elements free of secondary fringes

Method of forming holographic optical elements free of secondary fringes

GENERAL SCIENT CORPORATION

Head-mounted medical/dental accessories with voice-controlled operation

Medical/dental headlamp with adjustable proximity on/off sensor

Head-mountable illuminators with user-selectable color temperature

CUMMINGS THOMAS A

Low-profile optical mounting assembly

Low profile optical mounting assembly

ENVIRONMENTAL RES INST

Doubly modulated on-axis thick hologram optical element

KAISER OPTICAL SYSTEM INC

Real time holographic filter using nonlinear optical materials

KAISER OPTICAL SYSTEMS INC

Laser protection window with tilted modulated index of refraction filter elements

General Scientific/Surgitel

Ergonomic loupes with beam-redirecting prisms