A system for providing a uniform source of light. The system includes a light pipe having an input surface for receiving light from a light source and an output surface for transmitting the light. The system also includes an optical element having an entrance surface positioned adjacent to the output surface of the light pipe for receiving the light and an exit surface for transmitting the light.
John Ferri - Oak Park CA, US Michael Newell - Thousand Oaks CA, US Clark Pentico - Simi Valley CA, US
Assignee:
JDS Uniphase Corporation - Milpitas CA
International Classification:
F21V 9/14
US Classification:
362 19, 362551, 362583
Abstract:
The present invention relates to a folded front end unit used in a light engine of a projection display device. The front end unit comprises a light source for generating a beam of light, and a lightpipe for providing spatial uniformity to the beam of light. Polarization-dependent front end units include polarization beam splitters for separating the light into orthogonally polarized sub-beams, and a polarization rotating element, e. g. a waveplate, for rotating the polarization of one of the sub-beams. In accordance with the present invention, a prism is positioned between the light source and the lightpipe for reflecting the light into the lightpipe. The difference in refractive index between the air and the prism decreases the cone angle of the beam of light enough to effectively increase the distance between the light source and the lightpipe to compensate for the added distance required to fold the light.
A pixel array display system which has an illumination source with a plurality of emitters in a sparse array, collimators in front of the emitters, a condenser lens downstream of the collimators, an optical homogenizing element downstream from the condenser lens, a relay lens downstream from the optical homogenizing element, a pixel array downstream from the relay lens, a rear group of lens elements of a projection lens downstream from the pixel array, a polarization converter stack downstream from the rear group of lens elements and a front group of lens elements of the projection lens downstream from the polarization converter stack, so that light from the emitters is imaged onto input apertures of the polarization converter stack.
Projector Light Source And System, Including Configuration For Display Of 3D Images
An illuminator for an imaging system using a spatial light modulator has first color laser light directed by a dichroic element to a rotating member. The rotating member includes phosphor segments that respond to illumination by the first color light to emit second and third color light along a first path to the dichroic element for output, and a light transmitting segment that passes the first color through the rotating member along a second path to the dichroic element for output. In a 3D imaging mode, the first color laser light includes light of two wavelengths, and the phosphor segments include segments that emit second and third color light each of two wavelengths. The output light is directed to a second rotating member which has segments that selectively transmit one wavelength of each color, blocking the other wavelength. The second rotating members can optionally be operated to pass wavelengths of each color to form right and left images that can be viewed using corresponding passive right and left image filtering eyewear.
A system includes a red light emitting diode (LED), a blue LED, and a green LED. The system also includes a red laser, a first filter, a second filter, and a lens. The system includes a first optical path that includes the red LED, the red laser, the first filter, the second filter, and the lens, where the first filter has a filter response to transmit red light from the red laser and to reflect red light from the red LED. The system also includes a second optical path that includes the blue LED, the green LED, the second filter, and the lens, where the second filter has a filter response to transmit blue light from the blue LED, to transmit green light from the green LED, to reflect red light from the red laser, and to reflect red light from the red LED.
- Dallas TX, US Michael Terry Davis - Richardson TX, US John Marshall Ferri - Allen TX, US
International Classification:
G03B 33/12 G02B 27/14
Abstract:
Described examples include a device having a prism cube having a first side and a second side opposite the first side, the prism cube configured to: receive light comprising a first color light and a second color light, direct the first color light to the first side of the prism cube, and direct the second color light to the second side of the prism cube.
A pupil expansion apparatus includes: a beam splitter, configured to receive light from an optic and to replicate a pupil formed by the optic; and a waveguide, optically coupled to the beam splitter, the waveguide configured to receive light from the beam splitter and further expand the pupil.
Projection On Multiple Planes Using A Single Projection Unit
- Dallas TX, US Zhongyan Sheng - Allen TX, US Terry Alan Bartlett - Dallas TX, US John Marshall Ferri - Allen TX, US
International Classification:
H04N 9/31 G02B 27/14 G06K 9/00
Abstract:
Described examples include an optical device having a first light source configured to provide a first light having a first characteristic. The optical device also has a second light source configured to provide a second light having a second characteristic. The optical device also has a combiner configured to combine the first light and the second light to provide a combined light. The optical device also has a spatial light modulator configured to modulate the combined light to provide modulated combined light. The optical device also has a divider configured to receive the modulated combined light and to direct a first portion of the modulated combined light having the first characteristic to a first target and to direct a second portion of the modulated combined light having the second characteristic to a second target.
License Records
John Joseph Ferri
License #:
RS165315L - Expired
Category:
Real Estate Commission
Type:
Real Estate Salesperson-Standard
Name / Title
Company / Classification
Phones & Addresses
John Ferri President
SPECON CORPORATION Nonclassifiable Establishments · Business Services at Non-Commercial Site · Single-Family House Construction Management Services
4591 Operetta Dr, Huntington Beach, CA 92649 3462 Venture Dr, Huntington Beach, CA 92649 6363 Wilshire Blvd, Los Angeles, CA 90048 3780 Wilshire Blvd, Los Angeles, CA 90010
John M. Ferri Principal
John Marshall Ferri Business Services at Non-Commercial Site
1822 Trinidad Ln, Allen, TX 75013
John Ferri
Reo Enterprises LLC Development
3462 Venture Dr, Huntington Beach, CA 92649 949 S Sierra Bonita Ave, Los Angeles, CA 90036