Grattan et al., 1984 - Google Patents
Interrupted reflection fibre optic communication device for the severely disabledGrattan et al., 1984
- Document ID
- 4017692283169435249
- Author
- Grattan K
- Palmer A
- Publication year
- Publication venue
- Journal of biomedical engineering
External Links
Snippet
The difference between light reflected from the open eye and that reflected from the closed lid is detected by means of an optic fibre attached to a spectacle frame. That difference is processed electronically to produce a pulse train which may be interpreted either …
- 239000000835 fiber 0 title abstract description 18
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filter, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G02B6/00—Light guides
- G02B6/24—Coupling light guides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5402109A (en) | Sleep prevention device for automobile drivers | |
| US6658299B1 (en) | Artificial system for vision and the like | |
| KR20170028254A (en) | Anti-aliasing photodetector system | |
| EA000721B1 (en) | Interactive light field device and method of forming interactive light field | |
| KR20170047172A (en) | Electronic ophthalmic lens with alarm clock | |
| Mukherjee et al. | Augmentative and Alternative Communication device based on eye-blink detection and conversion to Morse-code to aid paralyzed individuals | |
| Duchowski et al. | Eye-based interaction in graphical systems: Theory and practice | |
| CN106388770A (en) | Electronic ophthalmic lens with eye closed sensor with open eye prompt and data logging | |
| Young | Gaussian derivative model for machine vision | |
| CN102217988B (en) | Dipping liquid crystal welding goggle | |
| CN206381163U (en) | Instant eye monitoring glasses | |
| Grattan et al. | Interrupted reflection fibre optic communication device for the severely disabled | |
| US6559770B1 (en) | Eyelash activated drowsy alarm | |
| CN204758957U (en) | Healthy glasses of children's intelligence | |
| EP0940118A3 (en) | Artificial vision system | |
| CN201402207Y (en) | Testing device for detecting ultraviolet transmittance of lens | |
| CN105845102A (en) | Environment-based screen brightness adjusting circuit and display screen | |
| Bedell et al. | A study of the Stiles-Crawford (SC) function at 35 in the temporal field and the stability of the foveal SC function peak over time | |
| CN206133129U (en) | Smart spectacles | |
| CN106774663A (en) | A kind of panel computer with eyesight protection function | |
| Zuidema et al. | Spatial and temporal summation in the human dark-adapted retina | |
| WO2006011870A1 (en) | Optical system for monitoring eye movement | |
| CN114207509B (en) | Smart contact lenses detect proportional light changes | |
| CN202661744U (en) | Myopia prevention glasses | |
| CN207817336U (en) | iris equivalent mirror |