Summary of the invention
For fear of image documentation equipment above shortcomings such as existing camera, video cameras, the utility model provides a kind of image documentation equipment with photochromic lens, among the light path system of image documentation equipment, adopt photochromic lens to realize the preliminary adjustment of logical light quantity, to reach the effect of automatic adjustment exposure.
Image documentation equipment with photochromic lens of the present utility model is the innovative product of existing image documentation equipment.It is to be made of casing, the circuit board and the light path system assembly that are installed in the casing, in light path system, contain a slice photochromic lens at least or at least one deck be attached to the photochromic translucent layer of lens surface.Described photochromic lens is to use as the light transmission piece of the dustproof light transmission piece on the casing or the infrared filter among external optical filtering or the light path system or lens among the light path system or image sensor.Described photochromic translucent layer can be attached to convex lens or the surfaces such as concavees lens or plano lens in the light path system, also can cover the image sensor surface.
The utility model is applied to photochromic lens and photochromic translucent layer in the light path system of image documentation equipment, make light path system can adopt the design of big fixed aperture, when stronger light impinges upon on the lens that have photochromic characteristic in its light path system, these lens all or the local color deepening stoped excessive light to pass through, otherwise when more weak light by the time these lens all or local color shoal and allow a large amount of light pass through, can play certain effect of regulating exposure automatically.
It need not change the structure of image documentation equipments such as existing camera, video camera, can save the mechanical driving part of whole aperture or variable mechanical aperture and the circuit part of control aperture, replacing the lens of original corresponding function or light transmission piece or optical filter with the lens with photochromic characteristic or light transmission piece or optical filter gets final product, it is low to have cost, failure rate is low, advantage such as easy to use is convenient to penetration and promotion.
Embodiment
Below in conjunction with embodiment the utility model is described in detail.
The digital camera of Fig. 1 embodiment 1 expression one multi-disc lens, 8. it comprise casing, be installed in the casing circuit board 6. with the light path system assembly 1., 2., 3., 4., 5. (see below and state).The circuit part that 6. its circuit board is gone up can save the part of control aperture, and 7. other parts of circuit board and image sensor wait can be identical with the digital camera of existing the type multi-disc lens.Its primary structure part can be saved the mechanical driving part of whole aperture or aperture, other light path system layout can be identical with the digital camera of existing the type multi-disc lens, in light path system from image sensor photic zone 7. 1., infrared filter among the light path system 2., the multi-disc lens combination 3., dustproof light transmission piece on the casing 4. to external optical filtering 5., a slice adopts photochromic lens at least.The transmission region of this photochromic lens can all have photochromic characteristic or local transmission region has photochromic characteristic.In this digital camera, described photochromic lens can be convex lens or concavees lens or plano lens.Described photochromic lens is to use as the photic zone of the dustproof light transmission piece on the casing or one of the infrared fileter in external optical filtering or the light path system or the multi-disc lens combination in the light path system or image sensor.9. mirror head outer shell or the device that is used for fixing optical element among the figure.
Among above-mentioned light path system, also can adopt the photochromic translucent layered scheme, the photochromic translucent layer is attached to surfaces such as convex lens in the light path system, concavees lens, plano lens, also can cover the image sensor surface.
In the light path system of Fig. 1 digital camera owing to contain photochromic lens or photochromic translucent layer, make light path system can adopt big fixed aperture design, when stronger light impinges upon on the lens that have photochromic characteristic in its light path system, these lens or photic zone all or the local color deepening stoped excessive light to pass through, otherwise when stronger light passes through, these lens or photic zone all or local color shoal and allow a large amount of light pass through, to reach the effect of automatic adjusting exposure.
The digital camera of Fig. 2 embodiment 2 expression one single element lens, 8. it comprise casing, be installed in the casing circuit board 6. with the light path system assembly 1., 2., 3., 4., 5. (see below and state).The circuit part that 6. its circuit board is gone up can save the part of control aperture, and 7. other parts of circuit board and image sensor wait can be identical with the digital camera of existing the type single element lens.Its primary structure part can be saved the mechanical driving part of whole aperture or aperture, other light path system layout can be identical with the digital camera of existing the type single element lens, in light path system from image sensor photic zone 7. 1., infrared filter among the light path system 2., single element lens 3., dustproof light transmission piece on the casing 4. to external optical filtering 5., a slice adopts photochromic lens at least.The transmission region of this photochromic lens can all have photochromic characteristic or local transmission region has photochromic characteristic.In this digital camera, described photochromic lens can be convex lens or concavees lens or plano lens.Described photochromic lens is to use as the photic zone of the dustproof light transmission piece on the casing or the infrared fileter in external optical filtering or the light path system or single element lens in the light path system or image sensor.9. mirror head outer shell or the device that is used for fixing optical element among the figure.
In the light path system of Fig. 2 digital camera owing to contain photochromic lens or photochromic translucent layer, make light path system can adopt big fixed aperture design, when stronger light impinges upon on the lens that have photochromic characteristic in its light path system, these lens or photic zone all or the local color deepening stoped excessive light to pass through, otherwise when more weak light passes through, these lens or photic zone all or local color shoal and allow a large amount of light pass through, to reach the effect of automatic adjusting exposure.
Above-mentioned photochromic lens is the lens that whole transmission region all has photochromic characteristic, also can be the lens that local transmission region has photochromic characteristic.Above-mentioned photochromic translucent layer is the photic zone that whole transmission region all has photochromic characteristic, also can be the photic zone that local transmission region has photochromic characteristic.
Fig. 3 a, b represent that whole transmission region has the lens or the photic zone of photochromic characteristic, and photochromic lens or photic zone can be circular shown in Fig. 3 a, and be square shown in Fig. 3 b, also can be arbitrary shape.
Fig. 4 a, b represent that local transmission region has the lens or the photic zone of photochromic characteristic, a zone that does not have photochromic characteristic is wherein arranged, this zone can be what position arbitrarily of arbitrary shape and central authorities that are positioned at lens or lens, partly for having the zone of photochromic characteristic, Y is not partly for there being the zone of photochromic characteristic for X among the figure.
Fig. 4 c, d represent that local transmission region has the lens or the photic zone of photochromic characteristic, a plurality of zones that do not have photochromic characteristic are wherein arranged, these zones can be arbitrary shape and what position arbitrarily that is positioned at lens, the part that indicates X among the figure is the zone with photochromic characteristic, and the part that indicates Y is the several regions that does not have photochromic characteristic.Local non-photochromic zone on the described photochromic lens can be rounded or oval or square or rectangle or triangle or rhombus or polygon or star or irregularly shaped etc.
Fig. 4 e, f represent that local transmission region has the lens or the photic zone of photochromic characteristic, a plurality of zones with photochromic characteristic are wherein arranged, these zones can be arbitrary shape and what position arbitrarily that is positioned at lens, the part that indicates X among the figure is the several regions with photochromic characteristic, and the part that indicates Y is the zone that does not have photochromic characteristic.Local photochromatic area on the described photochromic lens can rounded or oval or square or rectangle or triangle or rhombus or polygon or star or irregularly shaped.
Photochromic lens be subjected to phototropic reaction velocity and material thereof not in the scope of this programme, this technology has been proven technique.