Eye wear visually enhancing laser spot and laser line
OwnerSuganda Jutamulia, Lequn Liuinventors
Life of this patent
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Abstract
An eye wear comprises an optical filter disposed in front of an eye. The optical filter has a transmittance function of wavelength comprising a transmittance peak having a peak transmittance and a transmittance bandwidth. A transmittance outside the transmittance peak is at a lower level transmittance, wherein a ratio of the lower level transmittance to the peak transmittance is less than unity. The transmittance peak is at a central wavelength of a laser that emits laser light forming one of a laser spot and a laser line. The transmittance bandwidth is larger than a bandwidth of the laser light emitted by the laser. The laser spot or the laser line formed by the laser light emitted by the laser is viewed through the eye wear.
Claims18
An eye wear comprising:
- an optical filter disposed in front of an eye,
- wherein the optical filter has a transmittance function of wavelength comprising a transmittance peak having a peak transmittance and a transmittance bandwidth;
- wherein transmittances of wavelengths outside the transmittance peak are at a lower level transmittance, wherein a ratio of the lower level transmittance to the peak transmittance is less than unity;
- wherein the wavelengths outside the transmittance peak and a wavelength of the transmittance peak are wavelengths of visible light;
- wherein the wavelengths outside the transmittance peak include a first band and a second band, the first band and the second band have a transmittance between 7% and 15%;
- wherein the first band comprises wavelengths shorter than the wavelength of the transmittance peak, and the second band comprises wavelengths longer than the wavelength of the transmittance peak;
- wherein the transmittance peak is at a central wavelength of a laser that emits laser light forming one of a laser spot and a laser line;
- wherein the transmittance bandwidth is larger than a bandwidth of the laser light emitted by the laser;
- wherein one of the laser spot and the laser line formed by the laser light emitted by the laser is viewed through the eye wear.
An optical system comprising:
- a lens system comprising at least one lens;
- an image sensor, wherein the lens system is in front of the image sensor;
- and
- an optical filter having a transmittance function of wavelength;
- the transmittance function of wavelength comprising a transmittance peak having a peak transmittance and a transmittance bandwidth;
- wherein transmittances of wavelengths outside the transmittance peak are at a lower level transmittance, wherein a ratio of the lower level transmittance to the peak transmittance is less than unity;
- wherein the wavelengths outside the transmittance peak and a wavelength of the transmittance peak are wavelengths of visible light;
- wherein the wavelengths outside the transmittance peak include a first band and a second band, the first band and the second band have a transmittance between 7% and 15%;
- wherein the first band comprises wavelengths shorter than the wavelength of the transmittance peak, and the second band comprises wavelengths longer than the wavelength of the transmittance peak;
- wherein the transmittance peak is at a central wavelength of a laser that emits laser light forming one of a laser spot and a laser line;
- wherein the transmittance bandwidth is larger than a bandwidth of the laser light emitted by the laser;
- wherein one of the laser spot and the laser line formed by the laser light emitted by the laser is viewed by the optical system and detected by the image sensor.
Dependencies are inferred from the claim text.