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Systems and techniques for an optical scanning microscope and/or other appropriate imaging system includes components for scanning and collecting focused images of a tissue sample and/or other object disposed on a slide. The focusing system described herein provides for determining best focus for ea

Systems and techniques for an optical scanning microscope and/or other appropriate imaging system includes components for scanning and collecting focused images of a tissue sample and/or other object disposed on a slide. The focusing system described herein provides for determining best focus for each snapshot as a snapshot is captured, which may be referred to as “on-the-fly focusing.” The devices and techniques provided herein lead to significant reductions in the time required for forming a digital image of an area in a pathology slide and provide for the creation of high quality digital images of a specimen at high throughput.

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1. A device for slide scanning, comprising: a rotatable tray; anda plurality of recesses disposed in the rotatable tray, wherein each recess of the plurality of recesses is sized to receive a slide, and wherein said each recess stabilizes the slide in a scanning position as a result of rotation of t

1. A device for slide scanning, comprising: a rotatable tray; anda plurality of recesses disposed in the rotatable tray, wherein each recess of the plurality of recesses is sized to receive a slide, and wherein said each recess stabilizes the slide in a scanning position as a result of rotation of the rotatable tray, wherein said each recess includes a plurality of protrusions configured to touch multiple sides of the slide when in said each recess, wherein said plurality of protrusions are configured to stabilize the slide and have the multiple sides of the slide register against the plurality of protrusions when the rotatable tray is rotated. 2. The device according to claim 1, wherein the plurality of recesses are disposed on a circumferential ring of the rotatable tray. 3. The device according to claim 1, further comprising: an imaging system, wherein at least one component of the imaging system moves in a radial direction of the rotatable tray, and wherein the at least one component of the imaging system moves incrementally in the radial direction corresponding to one complete rotation of the rotatable tray. 4. The device according to claim 1, wherein the at least one recess of the plurality of recesses is sized to receive a slide having a length that is greater than a width of the slide, and wherein the length of the slide is oriented in a radial direction of the rotatable tray or the width of the slide is oriented in a radial direction of the rotatable tray. 5. The device of claim 1, wherein said each recess includes a cut out configured to allow placement and extraction of the slide by an operator. 6. The device of claim 1, wherein the plurality of protrusions are three protrusions. 7. The device of claim 1, wherein the plurality of protrusions extend from two sides of said each recess. 8. A method for scanning a slide, comprising: disposing the slide in a first recess of a plurality of recesses of a rotatable tray; androtating the rotatable tray wherein the first recess is sized to receive the slide, and wherein the first recess stabilizes the slide in a scanning position as a result of rotation of the rotatable tray, wherein the first recess includes a plurality of protrusions configured to touch multiple sides of the slide when in the first recess, wherein said plurality of protrusions are configured to stabilize the slide and have the multiple sides of the slide register against the plurality of protrusions when the rotatable tray is rotated. 9. The method according to claim 8, wherein plurality of recesses are disposed on a circumferential ring of the rotatable tray. 10. The method according to claim 8, further comprising: providing an imaging system; andmoving at least one component of the imaging system in a radial direction of the rotatable tray, and wherein the at least one component of the imaging system is moved incrementally in the radial direction corresponding to one complete rotation of the rotatable tray. 11. The method according to claim 8, wherein at least one recess of the plurality of recesses is sized to receive a slide having a length that is greater than a width of the slide, and wherein the length of the slide is oriented in a radial direction of the rotatable tray or the width of the slide is oriented in a radial direction of the rotatable tray. 12. The method of claim 8, wherein the first recess includes a cut out configured to allow placement and extraction of the slide by an operator. 13. The method of claim 8, wherein the plurality of protrusions are three protrusions. 14. The method of claim 8, wherein the plurality of protrusions extend from two sides of the first recess. 15. A device for slide scanning, comprising: a rotatable tray; andat least one recess disposed in the rotatable tray, wherein the at least one recess is sized to receive a slide, and wherein the at least one recess stabilizes the slide in a scanning position as a result of rotation of the rotatable tray, wherein the at least one recess includes a plurality of protrusions configured to touch sides of the slide when in the at least one recess, wherein said plurality of protrusions are configured to stabilize the slide and have the slide register against the plurality of protrusions when the rotatable tray is rotated, wherein each of the plurality of protrusions is a semicircular protrusion. 16. A method for scanning a slide, comprising: disposing the slide in at least one recess of a rotatable tray; androtating the rotatable tray wherein the at least one recess is sized to receive a slide, and wherein the at least one recess stabilizes the slide in a scanning position as a result of rotation of the rotatable tray, wherein the at least one recess includes a plurality of protrusions configured to touch sides of the slide when in the at least one recess, wherein said plurality of protrusions are configured to stabilize the slide and have the slide register against the plurality of protrusions when the rotatable tray is rotated, wherein each of the plurality of protrusions is a semicircular protrusion.