US Pat. No. 9,848,475

LED LIGHT SOURCE AND METHOD FOR ADJUSTING COLOUR TONE OR COLOUR TEMPERATURE OF LED LIGHT SOURCE

TEKNOWARE OY, Lahti (FI)...

1. An LED light source comprising at least three series connections of a LED string and semiconductor switching device, which
series connections are in parallel configuration and adapted to share a common current source as a function of time, and the
LED light source further comprising a colour tone or colour temperature controller adapted to provide at least three pulse-width
modulated control signals to control said at least three series connections of a semiconductor switch and a LED string sequentially
active one at a time and to take current from said common current source for a time defined by the respective one of said
pulse-width modulated control signals, wherein said colour tone or colour temperature controller is adapted to form said at
least three pulse-width modulated colour control signals from two pulse-width modulated colour control signals.

US Pat. No. 9,532,417

METHOD AND CONVERTER FOR SUPPLYING CURRENT TO SERIES CONNECTION OF LEDS

TEKNOWARE OY, Lahti (FI)...

1. A boost converter for supplying current to a series connection of light-emitting diodes, wherein
the boost converter comprises a main switch, and
a duty ratio of the main switch is configured to be controlled on the basis of a current feedback signal, wherein
the current feedback signal is formed as a weighted average of at least two signals including a first signal representing
the current through the series connection of LEDs and a second signal representing a current through the main switch.

US Pat. No. 10,344,925

ELONGATED LIGHTING DEVICE HAVING A CURVED SHAPE AND METHOD FOR MANUFACTURING

Teknoware Oy, Lahti (FI)...

1. A lighting device, comprising an elongated body, a cover, and one or more light sources, whereinthe body of the lighting device comprises a bottom and walls extending from the bottom and having open edges, and
the cover of the lighting device is formed from a light transmitting plastic material tube,
wherein the light transmitting plastic material tube has a cross-section that is smooth and round or oval, and the cross-section of the light transmitting plastic material tube is arranged between the open edges of said walls at a distance from the bottom, the one or more light sources being located in a space delimited by the body and the cover of the lighting device, and the body of the lighting device comprises at least one curved portion to provide a curved lighting device, and wherein differing optical properties are formed in the light transmitting plastic material tube in different parts of the cross-section of the light transmitting plastic material tube.

US Pat. No. 10,571,098

LIGHTING ASSEMBLY

Teknoware Oy, Lahti (FI)...

1. A lighting assembly, comprising:a housing manufactured by extrusion from at least one flexible material and comprising a first housing wall, a second housing wall, a third housing wall, a first flexible hinge and a second flexible hinge, the first housing wall being pivotably connected to the second housing wall by means of the first flexible hinge, and the second housing wall being pivotably connected to the third housing wall by means of the second flexible hinge, and both of the first flexible hinge and the second flexible hinge extending in a longitudinal direction, and
a lighting element located inside the housing, and arranged to emit light out from the housing;
wherein the housing comprises locking means for releasably locking a free edge of the first housing wall to a free edge of the third housing wall to arrange the housing in an operating position, the locking means comprising a first locking member formed in the first housing wall, and a second locking member formed in the third housing wall and arranged to cooperate with the first locking member, and
the housing is manufactured in one extrusion process, the material of the third housing wall is translucent, and the lighting element is arranged to emit light out from the housing through the third housing wall.

US Pat. No. 10,973,102

METHOD AND ARRANGEMENT FOR CONTROLLING LIGHTING IN A VEHICLE

Teknoware Oy, Lahti (FI)...

1. Control device for a luminaire of a vehicle, the control device comprising:an operating power input for receiving operating power;
an illumination output for directing illumination power to one or more light sources;
a power converter coupled between said operating power input and said illumination output for converting said received operating power into said illumination power, which illumination power is directed to said illumination output, the power converter comprising a control connection;
a control data connection for conveying control data;
a controller circuit coupled between said control data connection and the control connection;
a control power input coupled to said controller circuit, said control power input being separate from said operating power input, for receiving control power to said controller circuit independently of said operating power; and
a galvanic isolation between said controller circuit and said power converter, wherein the connection from the controller circuit to said control connection passes through said galvanic isolation.

US Pat. No. 10,690,331

LUMINAIRE CIRCUIT BOARD AND METHOD FOR MANUFACTURING A LUMINAIRE CIRCUIT BOARD

Teknoware OY, Lahti (FI)...

1. A luminaire circuit board comprising:a first set of light source components fastened onto a circuit board and coupled to a circuit for producing illumination,
a second set of light source components, which have a colour temperature that is substantially the same as a colour temperature of the light source components of the first set such that the colour temperatures of the first and second sets of light source components are within 3 MacAdam steps;
wherein the light source components of said second set of light source components are fastened onto the circuit board and electrically isolated from said circuit, and wherein the light source components of said second set of light source components are detachable for use to replace a failed light source component of the first set.

US Pat. No. 10,746,375

LIGHTING ASSEMBLY

Teknoware Oy, Lahti (FI)...

1. A lighting assembly, wherein:the lighting assembly comprises a housing having a longitudinal direction, a lateral direction and a height direction which are perpendicular to each other;
the lighting assembly comprises a lighting system which is installed in the housing and configured to produce light and emit the light out from the housing, the lighting system comprising a first light source;
the lighting assembly comprises a reflector system which is configured for reflecting the light produced by the lighting system out from the housing and comprises a first reflector including a first reflector surface which is a concave surface with a first radius of curvature, and a second reflector surface which is a concave surface with a second radius of curvature which is larger than the first radius of curvature, a center of curvature of the second reflector surface being spaced from a center of curvature of the first reflector surface;
the lighting assembly is configured to direct most of the light emitted by the lighting system out from the housing passes via the reflector system;
the first reflector surface and the second reflector surface are adjacent reflector surfaces, of which the second reflector surface is located in the lateral direction further away from the first light source than the first reflector surface; and
the first reflector surface and the second reflector surface of the first reflector are located, with respect to the first light source, such that a ray of light output from the center of the first light source is reflected from a first edge of the first reflector surface at a first reflection angle relative to the height direction, from a second edge of the first reflector surface at a second reflection angle relative to the height direction, from the middle point between a first edge and a second edge of the second reflector surface at a third reflection angle relative to the height direction, and from the second edge of the second reflector surface at a fourth reflection angle relative to the height direction, wherein each of the first reflection angle, the second reflection angle, the third reflection angle and the fourth reflection angle is smaller than a threshold angle of reflection which is 0°-10°.