An apparatus having an asymmetric adjustable lens with a deformable optical element. The apparatus may also include one or more actuators coupled to a deformable element of the asymmetric adjustable lens in a direct-drive configuration such that (1) mechanical action of the one or more actuators applies force to the deformable optical element and (2) the force applied by the mechanical action of the one or more actuators changes an optical property of the asymmetric adjustable lens by deforming the deformable optical element. Various other devices, systems, and methods are also disclosed.

A system for imaging a scene, includes a plurality of optical sensors arranged on an integrated circuit and a plurality of sets of interference filters, where each set of interference filters of the plurality of sets of interference filters includes a plurality of interference filters that are arranged in a pattern and each interference filter of the plurality of filters is configured to pass light in a different wavelength range, where each set of interference filters of the plurality of interference filters is associated with a spatial area of the scene. The system includes a plurality of rejection filters arranged in a pattern under each set of interference filters, where each rejection filter of the plurality of rejection filters is configured to substantially reject light of predetermined wavelengths. The system further includes one or more processors adapted to provide a spectral response for a spatial area of the scene associated with the set of interference filters.

An illumination system, including a light source module, a phosphor wheel, a light recycling element, and a light uniformizing element, is provided. The light source module emits an excitation light beam. The phosphor wheel includes a phosphor region. At a second timing, the other part of the excitation light beam transmitted to the phosphor region forms an unconverted light beam and is transmitted to the light recycling element, and is reflected by the light recycling element to form a recycled light beam. A part of the recycled light beam is converted into a second converted light beam. A first converted light beam and the second converted light beam are transmitted to the light uniformizing element through a same path, so that the illumination system outputs second light in the illumination light beam. A projection apparatus is also provided.

A light-source device, an image projection apparatus, and a display device. The light-source device includes a light source to emit light, an optical element having a lens array on one side or both sides of which a plurality of lenses are arrayed with distance from each other, the distance between a pair of vertices of an adjacent pair of the plurality of lenses of the optical element being equal to or less than one-quarter of width of light flux of the light incident on the optical element, and a wavelength conversion element to convert a wavelength of the light emitted from the light source and passed through the optical element. An image projection apparatus includes the light-source device, a light mixing element to mix the light emitted from the light-source device to uniformize the light, and an illumination optical system to emit the light uniformized by the light mixing element.

An embodiment of a camera module includes a holder configured such that the upper and lower portions of the holder are open and such that a first hole and a second hole, opposite to the first hole, are formed in the side surface of the holder, a first lens unit coupled to the upper portion of the holder, a second lens unit coupled to the lower portion of the holder, and a liquid lens disposed in the first hole and the second hole of the holder between the first lens unit and the second lens unit, the liquid lens protruding outward from the side surface of the holder, wherein at least a portion of the liquid lens may be spaced apart from the inner surface of the holder.

A wavelength conversion device includes a substrate, a reflective layer, a phosphor layer and a thermal conductive layer. The substrate has a surface. The reflective layer is disposed on the surface of the substrate. The phosphor layer is disposed on the reflective layer and has a conversion region configured to perform a wavelength conversion. The thermal conductive layer is disposed on the surface of the substrate and thermally directly connected to the conversion region for conducting a heat generated at the conversion region during the wavelength conversion. The thermal resistance of the reflective layer is high and causes heat in the conversion region to accumulate. By disposing the thermal conductive layer adjacent to a side of the phosphor layer, the thermal conductive layer is thermally directly connected to the conversion region, so that the heat generated at the conversion region during the wavelength conversion is efficiently dissipated.

A variable focal length lens device includes: a variable focal length lens whose focal length cyclically changes in accordance with an inputted drive signal; an image detector configured to detect an image of a measurement target through the variable focal length lens; a pulsed light illuminator configured to emit a pulsed light to illuminate the measurement target; and an illumination controller configured to control the pulsed light illuminator so that the pulsed light is emitted twice in one cycle of the drive signal based on two detection phases corresponding to a designated focal distance of the variable focal length lens.

A wavelength conversion element includes a substrate, an adhesion layer and a wavelength conversion material. The substrate has a bearing surface having an adhesion zone. The adhesion zone has a central portion and two edge portions respectively on two sides of the central portion. The adhesion layer is disposed on the adhesion zone and includes a first adhesive and a second adhesive. The first adhesive is disposed at the edge portions. The second adhesive is disposed at the central portion. Operating temperature of the first adhesive is lower than operating temperature of the second adhesive. Viscosity of the first adhesive is larger than viscosity of the second adhesive. The wavelength conversion material is fixed on the bearing surface by the first adhesive and the second adhesive. A projection apparatus having the wavelength conversion element is provided, and the durability of the wavelength conversion element and the projection apparatus is improved.

An optical component has: a planar liquid layer; and one or more light sources arranged such that light is guided to the planar liquid layer; wherein the liquid layer is configured to guide light.

A light source apparatus includes an enclosure, a phosphor wheel including a phosphor and disposed in the enclosure, a wheel-side heat dissipater that includes a plurality of fins provided at the phosphor wheel and generates an airflow flowing from the side facing the center of the phosphor wheel toward the periphery thereof with the aid of rotation of the phosphor wheel, a driver that rotates the phosphor wheel, a heat receiving member that includes a placement section where the driver is placed and faces the wheel-side heat dissipater, a heat sink coupled to a side of the heat receiving member, the side opposite to the phosphor wheel, and disposed outside the enclosure, and a plurality of columnar protrusions that are provided around the placement section and protrude into the enclosure toward the plurality of fins.