An optical device includes: a lens member including a plurality of lenses arranged such that optical axes of the lenses are substantially parallel to one another; and a light-transmitting member including: at least one light-transmitting part that is disposed to face the lens member, positioned on the optical axis of some of the plurality of lenses, and transmits light; and a light-shielding part that is provided on a surface of the light-transmitting part and blocks passage of light.

A microarrayer for dispensing reagent onto a substrate, comprising a dispensing print head adapted to load reagent and provided with a plurality of nozzles to dispense said at least reagent on the substrate, wherein the print head is mounted in the microarrayer to allow the print head to move with respect to the substrate in subsequent, essentially, parallel print passes, wherein the print head moves during a first print pass between a first end of the substrate toward a second end of the substrate and during a subsequent printpass in the opposite direction, the microarrayer being characterised in that the microarrayer comprises a first camera adapted to move behind the print head during a print pass and a second camera adapted to move ahead of the print head during said print pass, the first and second camera being adapted to obtain images of the substrate.

An image reading apparatus includes a main body, a document pressing plate, and a light shielding portion. The main body has an image obtaining portion which irradiates illumination light on a document placed on a contact glass and captures an image formed on the document. The document pressing plate is attached to the main body in such a way as to pivot around a pivot shaft that is provided on a rear side above an upper surface of the main body. The pivot shaft moves in an up-down direction with respect to the main body. The light shielding portion, when the document pressing plate presses downward the document, extends downward from the document pressing plate with increase of an interval between the document pressing plate and the upper surface on the rear side in the up-down direction, so as to shield the illumination light not to leak outside.

An image forming apparatus includes an optical sensor configured to detect reflected light from a detection image formed on the transfer member. The optical sensor includes a light emitting element configured to emit light for irradiating the detection image at a predetermined angle of incidence, a first light receiving element arranged at a position at which diffused reflected light from the detection image is received at a first angle of reflection, and a second light receiving element arranged at a position at which the diffused reflected light from the detection image is received at a second angle of reflection.

The present disclosure provides a scanning imaging part, and related products and methods. The scanning imaging part includes a transparent body, a light blocking ink, a charged liquid droplet, and a microfluidic component. The transparent body may include a first face and a second face opposite to each other. An image sensor may be arranged on the second face. The charged liquid droplet and the light blocking ink may be insoluble with each other, and may be filled in a liquid flow channel. The charged liquid droplet may transmit at least a part of light incident from the first face through the charged liquid droplet and to the image sensor. The microfluidic component may drive the charged liquid droplet to move in the liquid flow channel. Thereby, light incident from the first face may be scanned via the charged liquid droplet and form a scanning image by the image sensor.

A display device is connected to the exterior of a document processing device. The display device includes a screen positioned to display in a first direction away from the exterior. Lights are connected to the display device. The lights are positioned to emit light in second direction toward the exterior of the document processing device. A processor is operatively connected to the display device and the lights. The processor is adapted to control the lights to emit corresponding lighting of a graphic item appearing on the screen.

An image forming apparatus includes: a light source that irradiates a document with light; a hardware processor that controls lighting of the light source; a cover that is opened and closed with respect to a document platen on which a document is placed; and a detector that detects a person. When the detector detects a person and when an open angle of the cover is a predetermined angle or less, the hardware processor turns on the light source.

A reading module has a light source, an optical system having a mirror array and an aperture stop portion, a sensor in which a plurality of image regions where the image light is converted into an electrical signal are arranged; a housing; and a light-shielding wall shielding stray light striking the image regions. In the mirror array, a plurality of reflective mirrors whose reflection surfaces are aspherical concave surfaces are coupled together in an array in the main scanning direction. The optical system is fixed to on the case housing at one point in the main scanning direction, and the light shielding walls are arranged at a positions displaced deviated by a predetermined amount from boundaries between the image regions in the direction opposite to the fixed side of the optical system.

The image reading apparatus includes a reading unit, a reading region in which a first region in which a member that suppresses entry of external light is disposed and a second region other than the first region are arranged in a main scanning direction of the reading unit, and a controller, wherein the controller calculates intensity of external light in the second region based on a reading value in the reading region, wherein the reading value is obtained by the reading unit, determines whether the intensity of the external light exceeds a threshold value, performs a first shading correction on a reading value of a document transported to the reading region when the intensity of the external light exceeds the threshold value, and performs a second shading correction on the reading value of the document when the intensity of the external light does not exceed the threshold value.

A device and a method for deflecting a beam of light. The device is developed together with: an adjustable deflection device; a closed-loop control unit, which is designed to generate an actuating signal by which the deflection device is controlled in a periodic movement for scanning a solid angle region with the aid of a beam of light deflected by the deflection device; and a detector device, which is designed to detect an impingement or a missing impingement of the scanning beam of light on the detector device, and to generate a measuring signal based thereon; the closed-loop control unit furthermore being designed to adapt the actuating signal based on at least the measuring signal.